CN115330577A - Protection area region dividing method and device and electronic equipment - Google Patents
Protection area region dividing method and device and electronic equipment Download PDFInfo
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Abstract
The application discloses a protection zone region dividing method and device and electronic equipment. The method comprises the following steps: acquiring ecological information of a target area needing protective area division, wherein the ecological information comprises description information of a plurality of form types of ecology of the target area; according to the description parameters of the description information on the corresponding morphological types, the morphological types of the target areas are divided into ecological units to obtain the description parameters of a plurality of ecological units, and each ecological area comprises at least one ecological unit; and determining whether the ecological unit of each form type is divided into the protection areas or not according to the corresponding protection area determination principle of each form type to obtain the protection areas divided by the target area. The problem that the area division of the protection area in the related technology depends on the basic data with extremely high precision of the area seriously, and the accurate planning can not be carried out on the areas without the basic data with high precision or the areas with data shortage is solved.
Description
Technical Field
The application relates to the field of ecological planning, in particular to a region division method and device for a protected area and electronic equipment.
Background
The water ecosystem protection planning is an important means for realizing the sustainable development of water ecology, and has important significance for protecting and relieving the problems of environmental pollution and ecological damage in the water ecosystem, restoring the water ecosystem and maintaining the biodiversity. The existing water ecological protection planning technology mainly determines a water ecological protection target through water ecological condition investigation, analysis and evaluation, and determines a water ecological protection main area by using a point, line and plane combined method and combining the relation between a protection target and a distribution range in a water ecological system.
The prior art has insufficient consideration on the planning method of the area lacking the data, mainly because the target area for planning is generally severely influenced by human activities, the ecological environment condition is relatively seriously damaged, and the planning method has higher requirements on the basic data of the target protection area; for areas which are not severely influenced by human activities and have relatively good ecological environment conditions, because basic data of the areas are often relatively deficient, on one hand, basic data conditions required for developing planning are lacked, and on the other hand, the necessity of developing protection of the areas is not well recognized, so that after the areas are severely influenced by the human activities and the ecological environment conditions are relatively seriously damaged, people only recognize the protection necessity, then research and monitoring of the basic data are started, further, the planning is developed, and the protection timeliness is influenced.
Aiming at the problems that the region division of the protection region in the related technology depends heavily on the basic data with extremely high precision of the region, and the accurate planning can not be carried out on the regions without the high-precision basic data or the regions with data deficiency, an effective solution is not provided at present.
Disclosure of Invention
The present application mainly aims to provide a method and an apparatus for dividing a protection area, and an electronic device, so as to solve the problem that, in the related art, when the protection area is divided into areas, the area is seriously dependent on the basic data with extremely high precision, and the area without the high-precision basic data or lacking data cannot be accurately planned.
In order to achieve the above object, according to an aspect of the present application, there is provided a region division method of a guard area, including: acquiring ecological information of a target area needing to be divided into protection areas, wherein the ecological information comprises description information of a plurality of form types of ecology of the target area, and the description information of each form type comprises at least one corresponding description parameter; according to the description parameters of the description information on the corresponding morphological types, the target area is divided into ecological units on the morphological types to obtain a plurality of ecological units, and the description parameters of the ecological units are determined, wherein the target area comprises ecological areas of a plurality of morphological types, and each ecological area comprises at least one ecological unit; and determining whether the ecological unit of each form type is divided into the protected areas or not according to the corresponding protected area determination principle of each form type to obtain the protected areas divided by the target area.
Optionally, the obtaining of the ecological information of the target area needing to be partitioned into the protection areas includes: acquiring public data related to the target area, wherein the public data comprises area data and watershed data which can be acquired through a common path; determining the ecological information of the target area through the area data and the watershed data, wherein the plurality of morphological types of the ecology comprise: the ecological information comprises first description information of the river reach, second description information of the sub-watershed and third description information of the flood beach.
Optionally, the dividing, according to the description parameters of the description information on the corresponding morphological types, the ecological units in the morphological types of the target area to obtain a plurality of ecological units, and determining the description parameters of the ecological units includes: determining at least one description parameter of a target form type and a classification standard of a classification type corresponding to each description parameter according to the description information, wherein the target form type is one form type corresponding to the description information in a plurality of form types; and determining the ecological unit of the ecological region of the target morphological type and the description parameter corresponding to the ecological unit according to the specific numerical value of at least one description parameter and the corresponding division standard.
Optionally, according to a corresponding protected area determination rule of each form type, determining whether the ecological unit of each form type is divided into a protected area, where before the protected area divided by the target area is obtained, the method further includes: determining whether a morphological type with undetermined description parameters of the ecological unit after the ecological unit is not divided and/or the ecological unit after the ecological unit is divided exists in the plurality of morphological types; under the condition that the form types of which the description parameters of the ecological units are not divided and/or are not determined exist in the plurality of form types, reselecting the form types as the target form types from the rest form types of the plurality of form types, wherein the rest form types in the plurality of form types are the form types of which the description parameters of the ecological units are not determined and/or are not divided; and traversing the plurality of form types until the description parameters of the ecological units of the plurality of form types are determined to be completed.
Optionally, in a case that the target form type is a river reach, the description parameters include river reach grade, elevation, geology and hydrology; under the condition that the target form type is a sub-basin, the description parameters comprise sub-basin type, elevation, geology, vegetation and hydrology; in a case where the target form type is a floodbeach, the description parameter is a floodbeach category.
Optionally, determining whether the ecological unit of each form type is divided into a protected area according to a corresponding protected area determination rule of each form type, and obtaining the protected area divided by the target area includes: determining whether the ecological unit of each form type is divided into a protected area or not according to a protected area determination principle corresponding to each form type; and counting the parameters of the ecological units divided into the protection area, and determining the area of the ecological units as the protection area under the condition that the parameters meet preset conditions.
Optionally, when the form type is a river reach or a sub-watershed, the corresponding protection area determination principle is a connectivity principle, and the connectivity principle is that when the connectivity of the ecological unit of the river reach or the sub-watershed meets a preset connectivity, the ecological unit of the river reach or the sub-watershed is used as a protection area; and under the condition that the form type is the flood plain, the corresponding protection area determining principle is a human activity line influence principle, and the human activity line influence principle is to take the ecological unit of the flood plain as the protection area under the condition that the human activity influence of the ecological unit of the flood plain meets preset influence conditions.
Optionally, the parameters of the ecological unit of the protected area at least include: the ratio of the total area of the protected zones to the area of the target zone, the number of the protected zones, the area of the protected zones; determining the area of the ecological unit as a protected area when the parameter satisfies a preset condition comprises: determining the ecological unit determined as the protected area as a final protected area under the condition that each parameter meets the corresponding preset condition; and under the condition that any parameter in the multiple parameters does not meet the corresponding preset condition, adjusting the protection area until the multiple parameters all meet the corresponding preset condition.
In order to achieve the above object, according to another aspect of the present application, there is provided an area dividing apparatus of a protection area, including: the system comprises an acquisition module, a storage module and a processing module, wherein the acquisition module is used for acquiring ecological information of a target area needing protected area division, the ecological information comprises description information of a plurality of form types of ecology of the target area, and the description information of each form type comprises at least one corresponding description parameter; the dividing module is used for dividing the target area into the ecological units in the form types according to the description parameters of the description information in the corresponding form types to obtain a plurality of ecological units and determining the description parameters of the ecological units, wherein the target area comprises the ecological areas in the form types, and each ecological area comprises at least one ecological unit; and the determining module is used for determining whether the ecological unit of each form type is divided into the protected areas or not according to the corresponding protected area determining principle of each form type to obtain the protected areas divided by the target area.
According to another aspect of the present application, there is also provided a computer-readable storage medium storing a program, wherein the program performs the region dividing method of the protection region of any one of the above.
According to another aspect of the present application, there is also provided an electronic device, including one or more processors and a memory for storing one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the region partitioning method for a protected region according to any one of the above.
Through the application, the following steps are adopted: acquiring ecological information of a target area needing to be divided into protection areas, wherein the ecological information comprises description information of a plurality of form types of ecology of the target area, and the description information of each form type comprises at least one corresponding description parameter; according to the description parameters of the description information on the corresponding morphological types, the morphological types of the target area are divided into a plurality of ecological units, and the description parameters of the ecological units are determined, wherein the target area comprises a plurality of morphological types of ecological areas, and each ecological area comprises at least one ecological unit; and determining whether the ecological unit of each form type is divided into the protection areas or not according to the corresponding protection area determination principle of each form type to obtain the protection areas divided by the target area. The ecological unit is divided by obtaining the ecological description information of the target area, whether the ecological unit is used as the protection area is determined according to the protection area determination principle, the aim of accurately dividing the protection area of the target area without considering to acquire high-precision data of the target area is achieved, the efficiency of dividing the protection area is improved, the method is suitable for areas without high-precision data or data shortage, the technical effect of improving the planning practicability of the protection area is achieved, the problem that the basic data which is seriously dependent on the area and has extremely high precision when the protection area is divided in the related art is solved, and accurate planning cannot be performed for areas without high-precision basic data or data shortage is solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application, and the description of the exemplary embodiments of the application are intended to be illustrative of the application and are not intended to limit the application. In the drawings:
fig. 1 is a flowchart of a method for dividing a protection area according to an embodiment of the present application;
FIG. 2 is a flow chart of a method for partitioning a water ecosystem protection plan in a data deficient region according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of an area dividing apparatus for a protection area according to an embodiment of the present application;
fig. 4 is a schematic diagram of an electronic device provided according to an embodiment of the present application.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the technical solutions of the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The present invention is described below with reference to preferred implementation steps, and fig. 1 is a flowchart of a method for dividing a protection area according to an embodiment of the present application, as shown in fig. 1, the method includes the following steps:
step S101, acquiring ecological information of a target area needing protective area division, wherein the ecological information comprises description information of a plurality of form types of ecology of the target area, and the description information of each form type comprises at least one corresponding description parameter;
step S102, according to the description parameters of the description information on the corresponding morphological types, the morphological types of the target area are divided into ecological units to obtain a plurality of ecological units, and the description parameters of the ecological units are determined, wherein the target area comprises ecological areas of a plurality of morphological types, and each ecological area comprises at least one ecological unit;
step S103, determining whether the ecological unit of each form type is divided into the protection areas or not according to the corresponding protection area determination principle of each form type, and obtaining the protection areas divided by the target area.
Through the steps, acquiring ecological information of a target area needing to be partitioned into protection areas, wherein the ecological information comprises description information of a plurality of form types of ecology of the target area, and the description information of each form type comprises at least one corresponding description parameter; according to the description parameters of the description information on the corresponding morphological types, the morphological types of the target area are divided into a plurality of ecological units, and the description parameters of the ecological units are determined, wherein the target area comprises a plurality of morphological types of ecological areas, and each ecological area comprises at least one ecological unit; and determining whether the ecological unit of each form type is divided into the protection areas or not according to the corresponding protection area determination principle of each form type to obtain the protection areas divided by the target area. The ecological unit is divided by acquiring the ecological description information of the target area, whether the ecological unit is used as the protection area is determined by the protection area determination principle, the aim of accurately dividing the protection area of the target area without considering to acquire high-precision data of the target area is fulfilled, the efficiency of dividing the protection area is improved, the method is suitable for the area without high-precision data or data shortage, the technical effect of improving the planning practicability of the protection area is achieved, and the problem that the area without high-precision basic data or data shortage cannot be accurately planned when the protection area is divided in the related art is solved.
The main body of the above steps may be a processor, a calculator, a server, etc., a device having data operation and data analysis processing capabilities, or an apparatus having the above device having data operation, analysis and processing capabilities, such as a computer having a processor, a smart phone, a wearable device, etc., a data system having a server, an operation system, etc. The execution main body acquires ecological information of a target area of the public path, divides ecological units according to a plurality of ecological morphological types, and determines whether the ecological units are protected according to a preset protection area determination principle to plan the protection area of the target area.
The target area may be an area to be divided into protection areas. Generally, if a target area needs to be divided into protected areas, a manual mapping method is needed to obtain mapping information of the target area with high enough accuracy, including information of altitude, terrain and the like. The guard area division can be performed according to the information. However, the efficiency of obtaining the high-precision mapping information is very low, and the protection area division method completely depends on the high-precision mapping information, and cannot perform protection area division on the target area in the absence of the high-precision information.
Therefore, in this embodiment, the target area may be a target area without or lacking high-precision mapping information, the ecological information is ecological information with lower precision of the target area, and may be obtained by obtaining public materials of different publishers through a public path on the internet, where the public materials include free public materials and paid public materials, and specifically refer to materials obtained for paid or obtained for paid distribution to the public. The public path is also similar.
It is contemplated that a particular ecology may be comprised of multiple types, e.g., an ecological region, which may include different topographical, hydrological, geological, and other types of content. For example, a water ecosystem may include types of morphologies such as river segments, sub-basins, floods, and the like. In order to ensure successful division of the protection of the target area, the acquired ecological information includes description information of a plurality of morphological types of the ecology of the target area, and the description information can be understood as representing the situation of a certain morphological type in the target area. For example, in the case that the form type is a river reach, the description information may include information on the type of the river reach, elevation, geology, hydrology and the like.
The description information may include a plurality of description parameters, and the description is performed from different angles. Each description parameter has an influence on whether the ecological unit is a protected area, and therefore, the ecological unit is divided from different description parameters in a target area. The values of the divided ecological units on a plurality of description parameters are similar or regular. For example, in the morphological type of the river reach, the ecological units are similar in the description parameters of the elevation, which indicates that the river reach of the ecological units is gentle. If the elevation specification is from high to low, the rate of change is in a range indicating that the current river reach for the ecosystem is down flowing. If the elevation description parameter is rapidly reduced from high, the river reach of the ecological unit is shown as a waterfall.
When form types are divided according to the description parameters, if the description parameters are multiple, considering the influence of the multiple description parameters on the ecological unit division, the multiple description parameters are all required to be used as the factors of the ecological unit and the division. Therefore, a plurality of description parameters can be recorded in a multi-element array mode to represent the type of the ecological unit. For example, in the case of the form type being a river reach, the description parameters of the ecological unit include river reach type, elevation, geology and hydrology. The division of the wood ecological units can be represented by the situation of the river reach type, elevation, geology and hydrology quadruple, the river reach types in one ecological unit should be the same, and the data of elevation, geology, hydrology and the like should belong to the same category. The ecological unit of the morphology type is thus divided according to a plurality of description parameters.
After the ecological units are divided, each ecological unit is a constituent unit in the form type to which the ecological unit belongs, whether the ecological unit meets the condition for planning as a protection area is judged according to the protection area determination principle, if yes, the ecological unit can be preliminarily determined to belong to the protection area, but the protection area in the target area generally needs to meet certain conditions, such as the continuity between different protection areas, the area proportion, the minimum area of the protection area and the like. Therefore, after the ecological unit is determined according to the protective area determination principle, the ecological unit determined as the protective area can be optimized according to the preset protective area principle on the whole, and then the final protective area is determined.
Optionally, the obtaining of the ecological information of the target area needing to be partitioned into the protection areas includes: acquiring public data related to a target area, wherein the public data comprises area data and watershed data which can be acquired through a common path; determining ecological information of the target area through the area data and the drainage data, wherein a plurality of morphological types of the ecology comprise: the river reach, the sub-watershed and the flood beach are arranged, and the ecological information comprises first description information of the river reach, second description information of the sub-watershed and third description information of the flood beach.
Although the target area has no high-precision mapping information required by the prior art, public data is required to be acquired from a public path on the internet to acquire ecological information of the target area as a basis for planning a protected area. In one embodiment, the ecology of the target area is water ecology, and the morphological types of the water ecology include river reach, sub-watershed, and flood bank. The ecological information comprises first description information of river reach, second description information of sub-watersheds and third description information of a flood beach. It should be noted that the first description information, the second description information and the third description information include at least one item of information to determine at least one item of description information of a river reach, a sub-river basin and a flood beach. The first description information, the second description information, and the third description information may be the same or different, and may be partially the same when the description information includes a plurality of items.
The first description information and the second description information may be basin basic information and basin hydrologic information. The basic information of the watershed mainly includes information such as a watershed area, a watershed boundary, a sub watershed partition, a river water system diagram and the like. The basic information of the drainage basin can be directly imported into a Geographic Information System (GIS) from the existing drainage basin map. In the absence of a drainage basin map, the extraction of basic information of the drainage basin can be performed by adopting Digital Elevation Model (DEM) data. DEM data can be downloaded from a geological survey bureau to obtain SRTM DEM data with 90 m resolution, and seamless DEM data of a planning target area can be obtained through splicing. When DEM data extraction is adopted, a series of hydrological analyses are completed, depression filling processing is firstly carried out on spliced DEM data of a planning target area, then flow direction analysis is carried out, flow direction data such as confluence cumulant are output, after the flow data are obtained, a vector river network water system is further generated according to the flow and the flow direction data, river basin and river water system data are obtained, and finally sub-river basin division is carried out, so that the divided sub-river basin data can be obtained. When DEM data extraction is adopted, the extraction can be completed in ArcGIS by a Hydrology analysis tool (Hydrology) in an auxiliary mode or a self-development tool.
In the embodiment, the minimum threshold for sub-watershed division is set to be 100km2, and a threshold more suitable for area characteristics can be set according to actual conditions when the sub-watershed division is applied to different areas.
The river basin hydrological information is mainly obtained by collecting hydrological station length series flow data, such as hydrological yearbook data and network hydrological public data, such as years and months average runoff data of 900 rivers in the whole world collected and collated by a professor team of a university. The planned target area has no hydrological station or lacks measured flow data, and global hydrological data can be provided by utilizing the existing hydrological model simulation data, such as a HydroSHEDS data set. The existing hydrological model simulation data can not meet the requirements, and public data such as precipitation, evaporation and the like can be fully utilized to obtain flow data by constructing a hydrological model simulation.
In the embodiment, global or other large-scale flow data is obtained by using large-scale models such as a VIC model and a Watergap model, medium and small-scale flow data is obtained by using SWAT models, xinanjiang models and the like, and flow distribution along a river network and monthly mean value distribution of the flow distribution are counted.
The third description information may be information, and may specifically be information of a floodbeach, and since a floodbeach range is in motion throughout the year, the third description information needs to be processed separately. In the embodiment, the main river floodplane information is identified by using optical remote sensing data (Landsat ETM +) and microwave remote sensing data (JERS 1 synthetic aperture radar) and combining DEM data. In the specific identification method, the intelligent image analysis software 'eCoginization' is used for carrying out object-oriented image analysis on different space data sets, and the identification is carried out in a mode of combining automatic machine interpretation and manual visual interpretation to obtain the basic information of the flood beach.
Optionally, the dividing the target area into the plurality of ecological units in the morphological type according to the description parameters of the description information in the corresponding morphological type to obtain the plurality of ecological units, and determining the description parameters of the ecological units includes: determining at least one description parameter of a target form type and a classification standard of a classification type corresponding to each description parameter according to the description information, wherein the target form type is one form type corresponding to the description information in a plurality of form types; and determining the ecological unit of the ecological region of the target morphological type and the description parameters corresponding to the ecological unit according to the specific numerical value of the at least one description parameter and the corresponding division standard.
For example, in the case where the above-described types of morphologies include a river channel, a sub-basin, and a flood beach. River classification and sub-watershed classification can be comprehensively determined through a plurality of index classification results of river reach levels, sub-watershed types, elevations, geology, vegetation, hydrology and the like. Firstly, designing an initial classification frame, proposing classification indexes based on a Delphi method, developing a hierarchical classification scheme based on the classification indexes by taking ecological function classification as a principle, determining parameters and threshold values of different classification indexes, and taking the combination of classification results of the different indexes as the classification scheme.
The river reach is classified in grade, and the river types are divided into main stream, first-level branch stream, second-level branch stream and lower branch stream. Classifying the types of the sub-watersheds, namely classifying by taking the area of the sub-watersheds as a basis and the median of the area of the sub-watersheds as a threshold, wherein the area of the sub-watersheds is greater than or equal to the median of the area of the sub-watersheds of the target area, and defining the sub-watersheds as a primary sub-watershed; and the sub-basin area is smaller than the median of the sub-basin area of the target area and is defined as a secondary sub-basin. And (4) elevation classification, namely dividing elevation information into 3 sections by adopting a natural discontinuous point classification method (Jenks) based on the spliced DEM (digital elevation model) of the planning target area so as to maximize differentiation among the sections, wherein the sections are named as 3 types of high altitude, medium altitude and low altitude. And (4) geological classification, wherein surface runoff and underground water are significantly influenced by geological conditions, and the geological conditions are classified into 2 types according to geological information of a planning target area, namely a geological influence area and a non-geological influence area. And vegetation classification, namely classifying the vegetation according to the regional vegetation type map, and normalizing the main vegetation types into 4 types including woodland, grassland, cultivated land and water areas. And hydrologic classification, wherein classification is carried out by taking the annual runoff depth of the sub-watershed as a basis and taking the average annual runoff depth of each sub-watershed as a threshold. Dividing the annual runoff depth of each sub-watershed of the target area into a wet area and an arid area according to the average value of the annual runoff depth of each sub-watershed, wherein the annual runoff depth of each sub-watershed is greater than or equal to the average value of the annual runoff depth of the target area and is taken as the wet area; and the annual runoff depth of each sub-watershed is smaller than the average annual runoff depth of the target region, and the subwatershed is a drought region. In the final classification scheme, the 5 classification results can be combined to obtain a plurality of combined river reach classification schemes and sub-basin classification schemes. Specifically, the river reach classification scheme is that the classification result of the river reach is river reach level elevation geology hydrology, and specific data of the specific data is description parameters; the sub-watershed classification scheme is a sub-watershed type elevation geology hydrology.
And the river rambutan classification can be carried out through basic river rambutan information obtained after interpretation. Floodplains are classified into 4 main categories, namely meandering, braided, reticulated, and flat rivers.
Optionally, before determining whether the ecological unit of each form type is divided into the protected areas according to the corresponding protected area determination principle of each form type and obtaining the protected areas divided by the target area, the method further includes: determining whether a morphological type with undetermined description parameters of the ecological unit after the ecological unit is not divided and/or the ecological unit after the ecological unit is divided exists in the plurality of morphological types; under the condition that the form types of which the description parameters of the ecological units are not divided and/or are not determined exist in the plurality of form types, re-selecting the form types as target form types from the rest form types of the plurality of form types, wherein the rest form types in the plurality of form types are the form types of which the description parameters of the ecological units are not divided and/or are not determined; and traversing the plurality of form types until the description parameters of the ecological units of the plurality of form types are determined to be completed.
It should be noted that, when the ecological unit is divided, it is required to ensure that all the ecological units of multiple form types in the target protected area are divided, and in the case that the division is not completed, the form types are selected from the remaining form types to divide the ecological unit until all the form units complete the division of the ecological unit, and the description parameters of the ecological unit are determined.
Optionally, in a case that the target form type is a river reach, the description parameters include river reach grade, elevation, geology and hydrology; under the condition that the target form type is a sub-basin, the description parameters comprise sub-basin type, elevation, geology, vegetation and hydrology; in the case that the target form type is a flood plain, the description parameter is a flood plain category.
Optionally, determining whether the ecological unit of each form type is divided into the protection zones according to the corresponding protection zone determination principle of each form type, and obtaining the protection zones divided by the target zone includes: determining whether the ecological unit of each form type is divided into a protected area or not according to a protected area determination principle corresponding to each form type; and counting the parameters of the ecological units divided into the protection area, and determining the area of the ecological units as the protection area under the condition that the parameters meet preset conditions.
Under the condition that the form type is a river reach or a sub-river basin, the corresponding protection area determining principle is a connectivity principle, and the connectivity principle is that under the condition that the connectivity of the ecological units of the river reach or the sub-river basin meets the preset connectivity, the ecological units of the river reach or the sub-river basin are used as protection areas; under the condition that the form type is the flood plain, the corresponding protection area determination principle is a human activity line influence principle, and the human activity line influence principle is that the ecological unit of the flood plain is used as the protection area under the condition that the human activity influence of the ecological unit of the flood plain meets the preset influence condition.
The river connectivity principle refers to the basic goal of protecting biology and water ecosystem by keeping river connectivity, and mainly considers the longitudinal connectivity and the transverse connectivity of a river water ecosystem as the judgment basis of the river connectivity. Longitudinal connectivity, in the embodiment, whether reservoir dam engineering exists in a river reach (the dam height is greater than 15m or the storage capacity is greater than 300 cubic kilometers) is taken as a judgment basis, and if the reservoir dam engineering exists in a certain river reach, the river reach is considered to lack longitudinal connectivity; and further judging the longitudinal connectivity of the river, and if the main stream, the first-stage tributary, the second-stage tributary and some river sections below the main stream, the first-stage tributary, the second-stage tributary and the following tributaries of the river lack the longitudinal connectivity, considering that the main stream, the first-stage tributary, the second-stage tributary and the following tributaries of the river lack the longitudinal connectivity. The invention sets the flood bank standard as 10m according to the judgment of the flood bank, namely if the flood bank width of a river section is more than 10m, the river section is considered to have the transverse connectivity. Because the types of the river reach and the sub-watershed are different, the embodiment provides another discrimination standard with wider application range on the basis of 10m discrimination so as to be used when the width of the flood plain cannot be accurately judged, namely, the proportion of the area of the sub-watershed water area to the area of the sub-watershed is used as the discrimination standard, and if the proportion is more than or equal to 1 per thousand, the river reach and the sub-watershed water area are considered to have transverse connectivity; if the ratio is less than 1%, then no lateral connectivity is considered.
Human activity impact analysis, mainly including human habitation impact and human traffic impact. The human residence influence mainly considers the population center range, the population center range is 5km, the inner buffer area is used as a human activity influence area, and the non-human activity influence area is outside the population center range of 5 km; this example identifies population center ranges based on 2016 a 500m resolution global night light distribution map published by NASA. The human traffic influence mainly considers the influence of a traffic road, the embodiment takes public global road data resources as a basis to identify the influence of the traffic road, 5km on two sides of the traffic road and an inner buffer area are used as human traffic influence areas, and non-human traffic influence areas are arranged outside the 5km on two sides of the traffic road; global road data resources such as VMap0 road network data published by the National Image and Mapping Agency (NIMA), global road list entries of the netherlands environmental assessment agency, and the like.
Optionally, the parameters of the ecological unit of the protected area at least include: the ratio of the total area of the protection zones to the area of the target zone, the number of the protection zones and the area of the protection zones; determining the area of the ecological unit as the protected area includes, in case the parameter satisfies a preset condition: determining the ecological unit determined as the protected area as a final protected area under the condition that each parameter meets the corresponding preset condition; and under the condition that any parameter in the parameters does not meet the corresponding preset condition, adjusting the protection area until the parameters meet the corresponding preset condition.
In the embodiment, the representative proportion threshold is set to be 20%, that is, 20% of the area of each combination type in various combinations is used as the protection planning area, and the area proportion of the protection area in the planning target area is not less than 20% of the total area of the planning target area.
Or setting the area to be 1 square kilometer, namely, the area of a single protection area is not less than 1 square kilometer, the protection area is less than 1 square kilometer, and the communication with the adjacent protection area is tried, or the protection area is cancelled.
Or the number is set to 10, that is, the number of the protection zones of the target area does not exceed 10, and when the number exceeds 10, two adjacent protection zones are combined into 1, so that the size of the protection zones is also ensured to a certain extent.
The adjustment of the protection area includes adjustment of a single protection area range, and also includes combination and deletion between a plurality of different protection areas.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed out of order from that shown.
It should be noted that the present application also provides an alternative embodiment, which is described in detail below.
The embodiment provides a method for protecting, planning and partitioning a water ecosystem in a data-deficient area, which comprises the following steps: s1, analyzing data of a planned target area, S2, extracting information of a watershed of the planned target area, S3, classifying information of the watershed of the planned target area, S4, analyzing key influence of the planned target area, and S5, planning a water ecosystem protection subarea of the planned target area. Through the implementation mode, the limitation of higher requirements on basic survey monitoring data in the prior planning technology is overcome, the development of the water ecosystem protection planning subarea of the data-lacking area is facilitated, and the water ecosystem protection of the area which is not influenced or is influenced to a smaller extent is realized in advance.
Fig. 2 is a flowchart of a method for partitioning a water ecosystem protection plan in a data-deficient area according to an embodiment of the present application, and as shown in fig. 2, the method specifically includes the following steps: s1, analyzing data of a planned target area, S2, extracting information of a watershed of the planned target area, S3, classifying information of the watershed of the planned target area, S4, analyzing key influence of the planned target area, and S5, planning a water ecosystem protection subarea of the planned target area.
S1, planning target area data analysis, and combing and collecting the existing data condition by a system to identify the missing data.
Further, S1, analyzing data of a planning target area, wherein the planning target area comprises one or more watersheds, sub-watersheds are used as basic units for planning water ecological protection planning of the planning target area, and the sub-watersheds comprise land, a river channel and a river flood beach.
Further, S1 planning target area data analysis, the main data includes area data and drainage data.
Furthermore, the regional data comprises regional administrative division basic data, regional land utilization data, regional biodiversity data and the like;
furthermore, the river basin data mainly refers to river basin and river system data, including river basin ranges or river basin boundaries, sub-river basin partitions, river water system diagrams, river basin hydrological station distribution, river basin hydrological station flow data, and the like.
And S2, extracting the information of the watershed of the planning target area, wherein the extraction of the watershed information mainly refers to the extraction of the basic information of the S2D1 watershed, the hydrological information of the S2D2 watershed, the information of the S2D3 flood beach and the like.
Further, the S2D1 watershed basic information mainly includes information such as a watershed range, a watershed boundary, a sub-watershed partition, and a river water system map.
Further, the S2D1 watershed basic information can be directly imported into a Geographic Information System (GIS) from an existing watershed map.
Further, the S2D1 river basin basic information lacks a river basin map, and the extraction of the river basin basic information can be carried out by adopting Digital Elevation Model (DEM) data. DEM data can be downloaded from USGS (American geological survey bureau) to obtain SRTM DEM data (ftp:// edcsgs9.Cr. USGS. Gov/pub/data/SRTM /) with 90 m resolution, and seamless DEM data of a planning target area can be obtained through splicing.
Further, when the DEM data is adopted for extracting the S2D1 basin basic information, a series of hydrological analyses are completed, firstly, depression filling processing is carried out on spliced planning target area DEM data, then, flow direction analysis is carried out, flow direction data such as confluence cumulant are output, after the flow data are obtained, a vector river network water system is generated according to the flow and flow direction data, basin and river water system data are obtained, and finally, sub-basin division is carried out, so that the sub-basin data after division can be obtained. Further, in the above-mentioned case,
further, when the DEM data is used for extracting the basic information of the S2D1 watershed, the extraction can be assisted and completed in ArcGIS by a hydrologic analysis tool (Hydrology), and can also be completed by a self-development tool. In the present embodiment, the minimum threshold for sub-watershed is set to 100km2, and a threshold more suitable for the area characteristics may be set according to the actual situation when the sub-watershed is applied to different areas.
Furthermore, the hydrological information of the S2D2 basin mainly refers to hydrological station distribution information, hydrological station flow data and other hydrological monitoring data.
Further, the hydrological information of the S2D2 watershed is mainly obtained by collecting hydrological station long series flow data, such as hydrological yearbook data and network hydrological disclosure data, such as annual data of United states university professor team of Edison in Edison, new York, for example, collecting perennial mean flow data of 900 rivers around the globe (Dai, A., qian, T., trenberth, K.E., and Milliman, J.D.: changes in continuous Freewa Discharge from 1948to 2004, J.Climate,22,2773-2792, https:/doi.org/10.1175/2008JCLI2592.1, 2009).
Furthermore, the hydrological information of the S2D2 watershed, which does not have hydrological stations or lack measured flow data in the planning target area, can provide global hydrological data (https:// hydrolytes.
Furthermore, the hydrological information of the S2D2 basin and the existing hydrological model simulation data cannot meet the requirements, and public data such as precipitation and evaporation can be fully utilized to obtain flow data by constructing a hydrological model simulation. In the embodiment, global or other large-scale flow data are obtained by using large-scale models such as a VIC model and a Watergap model, medium and small-scale flow data are obtained by using simulation such as a SWAT model and a Xinanjiang model, and flow distribution along a river network and monthly mean distribution of the flow distribution are counted.
Further, the S2D3 flood plain information needs to be separately processed since the flood plain range is constantly in motion throughout the year. In the embodiment, the main flood plain information is identified by combining optical remote sensing data (Landsat ETM +) and microwave remote sensing data (JERS 1 synthetic aperture radar) with DEM data. According to the specific identification method, the intelligent image analysis software 'eCoginization' is used for carrying out object-oriented image analysis on different space data sets, and identification is carried out in a mode of combining automatic machine interpretation and manual visual interpretation, so that the basic information of the flood beach is obtained.
And S3, planning the classification of the river basin information of the target area, wherein the classification comprises S3D1 river channel classification, S3D2 sub-river basin classification and S3D3 river flood plain classification.
Further, S3D1 river channel classification and S3D2 sub-basin classification are comprehensively determined according to classification results of multiple indexes such as river reach levels, sub-basin types, elevations, geology, vegetation and hydrology. Firstly, designing an initial classification frame, proposing classification indexes based on a Delphi method, developing a hierarchical classification scheme based on the classification indexes by taking ecological function classification as a principle, determining parameters and threshold values of different classification indexes, and taking the combination of classification results of the different indexes as the classification scheme.
Further, the river reach level classification, in the present embodiment, the river reach types, i.e., main stream, first-level branch stream, second-level and lower branch streams, are classified into 3 types, i.e., main stream river reach, first-level branch stream river reach, second-level and lower branch stream river reach.
Further, the sub-basin type classification is performed by taking the area of the sub-basin as a basis and the median of the area of the sub-basin as a threshold, wherein the area of the sub-basin is greater than or equal to the median of the area of the sub-basin in the target area and is defined as a first-level sub-basin; and the sub-basin area is smaller than the median of the sub-basin area of the target area and is defined as a secondary sub-basin.
Further, elevation classification, in the embodiment, based on a DEM diagram after splicing of planning target areas, elevation information is divided into 3 sections by using a natural break point classification method (Jenks) so that differentiation among the sections is maximal, and the section names are 3 categories of high altitude, medium altitude and low altitude.
Further, in geological classification, since geological conditions significantly affect surface runoff and groundwater, the present embodiment classifies the geological conditions into 2 categories, i.e., a geological affected area and a non-geological affected area, according to geological information of a planned target area. And planning geological information of the target region and selecting public geological map data, such as public data of the Canada local dispatching office 1. The geological information is classified by taking the 90% quantile elevation as a threshold value, namely, the area lower than the 90% quantile elevation is an area with geological influence, and the area not lower than the 90% quantile elevation is an area without geological influence.
Further, the vegetation is classified, the classification is carried out by taking the regional vegetation type map as a basis, and the main vegetation types are normalized into 4 types including woodland, grassland, cultivated land and water. In the embodiment, the main vegetation types of each sub-watershed of a planning target area are obtained according to a global GLC2000 land cover map (European space; 1km resolution), and further the main vegetation types are normalized into 4 types including woodland, grassland, cultivated land and water.
Further, in the hydrologic classification, the present embodiment performs classification based on the annual runoff depth of the sub-watershed and using the average annual runoff depth of each sub-watershed as a threshold. Dividing the annual runoff depth of each sub-watershed of the target area into a wet area and a drought area according to the average annual runoff depth of each sub-watershed, wherein the annual runoff depth of each sub-watershed is greater than or equal to the average annual runoff depth of the target area and is the wet area; and the annual runoff depth of each sub-watershed is smaller than the average annual runoff depth of the target region, and the subwatershed is a drought region.
Further, the classification scheme combines the 5 classification results to obtain a plurality of combined river reach classification schemes and sub-basin classification schemes. The river reach classification scheme is river reach level elevation geology hydrology; the sub-watershed classification scheme is a sub-watershed type elevation geology hydrology.
Further, the S3D3 river floodbeach is classified through basic information of the river floodbeach obtained after interpretation. The present embodiment classifies the floodplains of the river into 4 main categories, i.e., meandering, braided, meshed, and flat rivers, and classifies them into response categories according to the interpreted types of the floodplains of the river.
And S4, analyzing key influence principles of the planning target area, mainly comprising S4D1 river connectivity principle analysis, S4D2 human activity influence principle analysis and S4D3 protection area representative principle analysis, and judging classification results through the key influence analysis so as to screen the protection areas meeting the conditions.
Further, the principle analysis of S4D1 river connectivity, the maintenance of the river connectivity is a basic target for protecting biology and water ecosystem, and the longitudinal connectivity and the transverse connectivity of the river water ecosystem are mainly considered as the judgment basis of the river connectivity in the embodiment.
Further, longitudinal connectivity is determined by whether reservoir dam engineering exists in a river reach (the dam height is larger than 15m or the storage capacity is larger than 300 cubic kilometers) or not, and if the reservoir dam engineering exists in a river reach, the river reach is considered to lack longitudinal connectivity; and further judging the longitudinal connectivity of the river, and if the main stream, the first-stage tributary, the second-stage tributary and some river sections below the main stream, the first-stage tributary, the second-stage tributary and the following tributaries of the river lack the longitudinal connectivity, considering that the main stream, the first-stage tributary, the second-stage tributary and the following tributaries of the river lack the longitudinal connectivity.
Further, the lateral connectivity is determined based on the flood plain, and the flood plain standard is set to 10m in the present embodiment, that is, if the flood plain width of a certain river reach is greater than 10m, the river reach is considered to have the lateral connectivity. Because the types of the river reach and the sub-watershed are different, the embodiment provides another discrimination standard with wider application range on the basis of 10m discrimination so as to be used when the width of the flood beach cannot be accurately judged, namely the ratio of the area of the sub-watershed to the area of the sub-watershed is used as the discrimination standard, and if the ratio is more than or equal to 1 per thousand, the transverse connectivity is considered to be achieved; if the ratio is less than 1%, then no lateral connectivity is considered.
Further, the S4D2 human activity influence principle analysis mainly comprises human residence influence and human traffic influence. The human residence influence mainly considers the population center range, the population center range is 5km, the inner buffer area is used as a human activity influence area, and the non-human activity influence area is outside the population center range of 5 km; the embodiment identifies population centric areas based on 2016 a 500m resolution global Night light distribution map (https:// earth house servatory. NASA. Gov/features/Night Lights) published by NASA. The human traffic influence mainly considers the influence of traffic roads, the embodiment identifies the influence of the traffic roads by taking public global road data resources as a basis, the two sides of the traffic roads are 5km, the inner buffer areas are human traffic influence areas, and non-human traffic influence areas are arranged outside the two sides of the traffic roads, which are 5km away; global road data resources such as VMap0 road network data (https:// gis-lab. Info/index-eng. Html), global road list items of the netherlands environment assessment bureau (https:// www. Naturaturearthdata. Com/downloads/10 m-clinical-vectors/roads /) and the like issued by the National Image and Mapping Agency (NIMA).
Further, a representative principle analysis of the S4D3 protection region is used for determining the protection degree, namely the relation between the balance development and the protection. The representative is a proportion of the area of the protection area of the planning target area in the area of the target area, and the embodiment sets the representative proportion threshold to be 20%, that is, 20% of the area of each combination type in various combinations is used as the protection planning area, and the proportion of the area of the protection area of the planning target area is not less than 20% of the total area of the planning target area.
S5, planning water ecosystem protection subareas in a target area, integrating the characteristics of land, river channels and river flood beaches, manually identifying the subarea principle of a river reach, a sub-river basin and a river flood beach, and determining the subareas through multiple screening iterations until the basic principle of the subareas is met. The basic principles of zoning are to ensure the maximum connectivity of each river reach, the maximum continuity and integrity between sub-watersheds and the continuity and integrity between flood beaches.
The embodiment of the present application further provides a device for dividing the area of the protected area, and it should be noted that the device for dividing the area of the protected area of the embodiment of the present application may be used to execute the method for dividing the area of the protected area provided in the embodiment of the present application. The following describes a region dividing apparatus for a protection zone according to an embodiment of the present application.
Fig. 3 is a schematic diagram of an area dividing apparatus for a protected area according to an embodiment of the present application, as shown in fig. 3, the apparatus includes: the acquisition module 31, the division module 32, and the determination module 33, which will be described in detail below.
An obtaining module 31, configured to obtain ecological information of a target area that needs to be partitioned into protection areas, where the ecological information includes description information of a plurality of form types of ecology of the target area, and the description information of each form type includes at least one corresponding description parameter; a dividing module 32, connected to the obtaining module 31, configured to divide the target area into a plurality of ecological units in the form type according to the description parameters of the description information in the corresponding form type, and determine the description parameters of the ecological units, where the target area includes ecological areas in a plurality of form types, and each ecological area includes at least one ecological unit; and the determining module 33 is connected to the dividing module 32, and configured to determine whether the ecological unit of each form type is divided into a protected area according to a corresponding protected area determining rule of each form type, so as to obtain a protected area divided by the target area.
In the area dividing apparatus for a protected area provided in the embodiment of the present application, the obtaining module 31 obtains ecological information of a target area that needs to be divided into the protected areas, where the ecological information includes description information of a plurality of form types of ecology of the target area, and the description information of each form type includes at least one corresponding description parameter; the dividing module 32 divides the target area into the ecological units in the form type according to the description parameters of the description information in the corresponding form type to obtain a plurality of ecological units, and determines the description parameters of the ecological units, wherein the target area includes ecological areas of a plurality of form types, and each ecological area includes at least one ecological unit; the determining module 33 determines whether the ecological unit of each form type is divided into a protected area according to the corresponding protected area determining principle of each form type, so as to obtain the protected area divided by the target area. The ecological unit is divided by obtaining the ecological description information of the target area, whether the ecological unit is used as the protection area is determined according to the protection area determination principle, the aim of accurately dividing the protection area of the target area without considering to acquire high-precision data of the target area is achieved, the efficiency of dividing the protection area is improved, the method is suitable for areas without high-precision data or data shortage, the technical effect of improving the planning practicability of the protection area is achieved, the problem that the basic data which is seriously dependent on the area and has extremely high precision when the protection area is divided in the related art is solved, and accurate planning cannot be performed for areas without high-precision basic data or data shortage is solved.
The area dividing device of the protection area comprises a processor and a memory, wherein the acquiring module 31, the dividing module 32, the determining module 33 and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to realize corresponding functions.
The processor comprises a kernel, and the kernel calls the corresponding program unit from the memory. The kernel can be set to be one or more than one, and the problem that the region division of the protection region in the related technology depends heavily on the basic data with extremely high precision of the region and the accurate planning cannot be carried out on the regions without the high-precision basic data or the regions with deficient data is solved by adjusting the kernel parameters.
The memory may include volatile memory in a computer readable medium, random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.
An embodiment of the present invention provides a computer-readable storage medium on which a program is stored, the program implementing the region dividing method for the protected area when executed by a processor.
The embodiment of the invention provides a processor, which is used for running a program, wherein the region division method of a protection region is executed when the program runs.
Fig. 4 is a schematic diagram of an electronic device according to an embodiment of the present application, and as shown in fig. 4, an embodiment of the present application provides an electronic device 40, which includes a processor, a memory, and a program stored in the memory and running on the processor, and when the processor executes the program, the processor implements any of the steps of the method.
The device herein may be a server, a PC, a PAD, a mobile phone, etc.
The present application further provides a computer program product adapted to perform a program for initializing any of the above method steps when executed on a zone dividing device of a protected zone.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable guard area partition device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable guard area partition device, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable guard area dividing device to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable guard area to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A method for dividing a protection area into regions, comprising:
acquiring ecological information of a target area needing to be divided into protection areas, wherein the ecological information comprises description information of a plurality of form types of ecology of the target area, and the description information of each form type comprises at least one corresponding description parameter;
according to the description parameters of the description information on the corresponding morphological types, the target area is divided into ecological units on the morphological types to obtain a plurality of ecological units, and the description parameters of the ecological units are determined, wherein the target area comprises ecological areas of a plurality of morphological types, and each ecological area comprises at least one ecological unit;
and determining whether the ecological unit of each form type is divided into a protected area or not according to a corresponding protected area determination principle of each form type to obtain the protected area divided by the target area.
2. The method of claim 1, wherein obtaining the ecological information of the target area needing to be protected area divided comprises:
acquiring public data related to the target area, wherein the public data comprises area data and watershed data which can be acquired through a common path;
determining the ecological information of the target area through the area data and the watershed data, wherein the plurality of morphological types of the ecology comprise: the ecological information comprises first description information of the river reach, second description information of the sub-river basin and third description information of the flood beach.
3. The method according to claim 2, wherein the dividing of the morphological type into the ecological units of the target area according to the description parameters of the description information on the corresponding morphological type to obtain a plurality of ecological units, and the determining the description parameters of the ecological units comprises:
determining at least one description parameter of a target form type and a classification standard of a classification type corresponding to each description parameter according to the description information, wherein the target form type is one form type corresponding to the description information in a plurality of form types;
and determining the ecological unit of the ecological region of the target morphological type and the description parameter corresponding to the ecological unit according to the specific numerical value of at least one description parameter and the corresponding division standard.
4. The method according to claim 3, wherein whether the ecological unit of each form type is divided into the protected area is determined according to a corresponding protected area determination rule of each form type, and before the protected area of the target area division is obtained, the method further comprises:
determining whether a morphological type with undetermined description parameters of the ecological unit after the ecological unit is not divided and/or the ecological unit after the ecological unit is divided exists in the plurality of morphological types;
under the condition that the form types of which the description parameters of the ecological units are not divided and/or are not determined exist in the plurality of form types, reselecting the form types as the target form types from the rest form types of the plurality of form types, wherein the rest form types in the plurality of form types are the form types of which the description parameters of the ecological units are not determined and/or are not divided;
and traversing the plurality of form types until the description parameters of the ecological units of the plurality of form types are determined to be completed.
5. The method according to claim 3, wherein in the case where the target form type is river reach, the description parameters include the grade, elevation, geology, hydrology;
under the condition that the target form type is a sub-basin, the description parameters comprise sub-basin type, elevation, geology, vegetation and hydrology;
in the case that the target form type is a flood plain, the description parameter is a flood plain category.
6. The method according to claim 1, wherein determining whether the ecological unit of each form type is divided into the protected area according to a corresponding protected area determination rule of each form type, and obtaining the protected area divided by the target area comprises:
determining whether the ecological unit of each form type is divided into a protected area or not according to a protected area determination principle corresponding to each form type;
and counting the parameters of the ecological units divided into the protected areas, and determining the areas of the ecological units as the protected areas under the condition that the parameters meet preset conditions.
7. The method according to claim 6, wherein, when the form type is a river reach or a sub-river reach, the corresponding protection zone determination principle is a connectivity principle, and the connectivity principle is that, when the connectivity of the ecological units of the river reach or the sub-river reach meets a preset connectivity, the ecological units of the river reach or the sub-river reach are used as protection zones;
and under the condition that the form type is the flood plain, the corresponding protection area determining principle is a human activity line influence principle, and the human activity line influence principle is to take the ecological unit of the flood plain as the protection area under the condition that the human activity influence of the ecological unit of the flood plain meets preset influence conditions.
8. The method according to claim 6, characterized in that the parameters of the ecological units of the protected area comprise at least: the ratio of the total area of the protected zones to the area of the target zone, the number of the protected zones, the area of the protected zones;
determining the area of the ecological unit as a protected area when the parameter satisfies a preset condition comprises:
determining the ecological unit determined as the protected area as a final protected area under the condition that each parameter meets the corresponding preset condition;
and under the condition that any parameter in the parameters does not meet the corresponding preset condition, adjusting the protection area until the parameters meet the corresponding preset condition.
9. An area dividing apparatus for a protected area, comprising:
the system comprises an acquisition module, a storage module and a processing module, wherein the acquisition module is used for acquiring ecological information of a target area needing protected area division, the ecological information comprises description information of a plurality of morphological types of ecology of the target area, and the description information of each morphological type comprises at least one corresponding description parameter;
a dividing module, configured to divide the morphological type of the target area into a plurality of ecological units according to the description parameters of the description information on the corresponding morphological type, and determine the description parameters of the ecological units, where the target area includes ecological areas of a plurality of morphological types, and each ecological area includes at least one ecological unit;
and the determining module is used for determining whether the ecological unit of each form type is divided into the protected areas or not according to the corresponding protected area determining principle of each form type to obtain the protected areas divided by the target area.
10. An electronic device, comprising one or more processors and memory for storing one or more programs, wherein the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the region partitioning method for a protected region of any one of claims 1 to 8.
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