CN114756642B - Wetland boundary defining method and device based on multiple factors and readable storage medium - Google Patents
Wetland boundary defining method and device based on multiple factors and readable storage medium Download PDFInfo
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Abstract
The application provides a wetland boundary delineation method and device based on multiple factors and a readable storage medium, which belong to the technical field of wetland boundary delineation, and the wetland boundary delineation method based on the multiple factors comprises the following steps: acquiring remote sensing images, DEM elevation data and topographic map data of the periphery of the wetland; collecting wetland factor data through wetland factor collecting equipment, wherein the wetland factor data comprises hydrological factor data, plant factor data, soil factor data and elevation factor data; determining a survey unit according to the wetland patches and/or the wetland areas; performing wetland type field sampling; making an interpretation legend; obtaining a preliminary demarcation boundary according to the field sampling result and the interpretation legend through a comprehensive analysis device; and obtaining a final defined boundary and establishing a quality inspection library according to the field sampling result and the preliminary defined boundary. According to the technical scheme, the problem that the wetland demarcation method is not standard is solved, the demarcation method is simple, convenient and quick, different regional scenes can be applied, and the flexibility is high.
Description
Technical Field
The application relates to the technical field of wetland boundary delineation, in particular to a wetland boundary delineation method and device based on multiple factors and a readable storage medium.
Background
In wetland survey work, because the boundary of each wetland class is uncertain, much trouble is caused in image spot interpretation and interpretation, and the overall work progress is delayed. In the traditional method, partial problems can be solved through the prior art and methods such as field exploration and computer spectrum analysis, but the field exploration investment cost is too high, the accuracy of the computer spectrum analysis result is not enough, and large-area leakage often occurs.
Disclosure of Invention
The method aims to solve or improve the problems of irregular wetland boundary definition and low accuracy.
Therefore, a first object of the present application is to provide a wetland boundary delineation method based on multiple factors.
A second object of the present application is to provide a wetland boundary delineation device based on multiple factors.
A third object of the present invention is to provide a wetland boundary delineating apparatus based on various factors.
A fourth object of the present invention is to provide a wetland boundary delineating apparatus based on various factors.
A fifth object of the present application is to provide a readable storage medium.
In order to achieve the first object of the present application, the technical solution of the first aspect of the present invention provides a wetland boundary defining method based on multiple factors, including: acquiring remote sensing images, DEM elevation data and topographic map data of the periphery of the wetland; collecting wetland factor data through wetland factor collecting equipment, wherein the wetland factor data comprises hydrological factor data, plant factor data, soil factor data and elevation factor data; determining a survey unit according to the wetland patches and/or the wetland areas; performing wetland type field sampling through a sampling device, wherein the field sampling comprises photographing landforms, land features and vegetation for evidence obtaining, measuring soil moisture and analyzing vegetation types; making an interpretation legend according to the remote sensing image, DEM elevation data and topographic map data combined with wetland factor data; obtaining a preliminary demarcating boundary according to the field sampling result and the interpretation legend through a comprehensive analysis device, wherein the preliminary demarcating boundary comprises a wetland boundary, a non-wetland boundary and boundaries of different wetland types; obtaining a final defined boundary and establishing a quality inspection library according to the field sampling result and the preliminary defined boundary; the hydrological factor data comprises waterline data or waterline data, the plant factor data comprises wetland plant growth range information, the soil factor data comprises distribution range information of water and soil, and the elevation factor data comprises elevation height information of the wetland; wetland types include inland, swamp, moss, herbaceous swamps, bush swamps, forest swamps, beach wetlands, and coastal wetlands.
According to the wetland boundary delineation method based on multiple factors, the remote sensing image, DEM elevation data and topographic map data of the periphery of the wetland are firstly obtained, wetland factor data are collected through wetland factor collection equipment, and the wetland factor data comprise hydrological factor data, plant factor data, soil factor data and elevation factor data. The hydrological factor data comprises waterline data or waterline data, the plant factor data comprises wetland plant growth range information, the soil factor data comprises distribution range information of aquatic soil, and the elevation factor data comprises elevation height information of the wetland. And then, defining a survey unit according to the wetland patches and the wet area, and carrying out wetland type field sampling on the survey unit through a sampling device, wherein the field sampling comprises photographing and evidence obtaining on landforms, land features and vegetation, measuring soil moisture and analyzing the vegetation type. And then, an interpretation legend is made according to the remote sensing image, DEM elevation data, topographic map data and wetland factor data. And obtaining a preliminary demarcation boundary according to the field sampling result and the interpretation legend through the comprehensive analysis device, and obtaining a final demarcation boundary and performing quality inspection and library establishment according to the field sampling result and the preliminary demarcation boundary. The method has the advantages that the boundary of the wetland is defined by adopting the hydrological factors, the plant factors, the soil factors and the elevation factors, the result is completely defined by field sampling, the problem that the boundary method of the wetland is not standard is solved, the boundary method is simple, convenient, quick and accurate, can be applied to different regional scenes, and is high in flexibility. The standard of the wetland demarcation technology is unified, so that the novel practitioners with insufficient experience can be easily understood and brought up quickly.
In addition, the technical scheme provided by the application can also have the following additional technical characteristics:
in the above technical solution, the wetland boundary delineation method based on multiple factors further comprises: making an interpretation legend of a specific land type to assist in judging the wetland boundary; the features of the interpreted legend include, among others, color, grayscale, shading, shape, size, texture, pattern, geographic location, and spatial layout.
In the technical scheme, the wetland demarcating boundary is determined, an interpretation legend of a specific land category needs to be manufactured, and the wetland boundary is judged in an auxiliary manner similar to a schematic diagram. The features of the interpreted legend include, among others, color, grayscale, shading, shape, size, texture, pattern, geographic location, and spatial layout. The wetland boundary can be judged by interpreting the characteristics of the legend.
Among the above-mentioned technical scheme, through comprehensive analysis device, obtain preliminary demarcation border according to field sampling result and interpretation legend, specifically include: dividing the boundary of the wetland according to the waterlogging or waterlogging line; and/or defining wetland boundaries according to the growth range of wetland plants; and/or defining wetland boundaries according to the distribution range of the aquatic soil; and/or the wetland boundary is defined according to the altitude of the wetland.
In the technical scheme, a preliminary demarcation boundary is obtained according to an field sampling result and an interpretation legend through a comprehensive analysis device, specifically, a wetland boundary is demarcated according to a water accumulation line or a waterline, a wetland boundary is demarcated according to a growth range of wetland plants, a wetland boundary is demarcated according to a distribution range of water and soil, and the wetland boundary is demarcated according to the altitude of the wetland. Wherein, the waterlogging or waterlogging line is the first factor for defining the boundary of the wetland. The growth range of wetland plants is a secondary factor for defining wetland boundaries. And when the wetland boundary cannot be determined by using the hydrological factors and the plant factors, the wetland boundary is defined by using the distribution range of the aquifer soil. The elevation of the wetland can assist in defining the wetland boundary. The wetland boundary delineation firstly delimitates the wetland and non-wetland boundaries by using four factors of hydrology, plants, soil and elevation, and then delimitates different types of wetland boundaries in the wetland boundary range.
In the technical scheme, the wetland area comprises a plurality of wetland patches.
In the technical scheme, the wetland area comprises a plurality of wetland patches. Specifically, the wetland patches are the minimum basic unit for wetland resource investigation and statistics. The wet area is a wetland complex which consists of a plurality of wetland patches and has certain hydrological relation and ecological function. When dividing wetland areas, the integrity of a wetland ecosystem and the independence of landform units are considered, the wetland which meets specific conditions is divided into wet areas independently, and other sporadic wetlands can be divided by county areas as units and named according to the names of county-level administrative areas.
In the above technical solution, the determining and examining unit according to the wetland plaque and/or the wetland area specifically includes: when the wetland plaque factors have differences, the wetland plaques are divided separately; wherein, the wetland plaque factor comprises one of the following components: the system comprises a three-level drainage basin, wetland types, ponding conditions, mineralization degree, county-level administrative regions, land ownership, protection conditions, wetland threat level and a wetland leading utilization mode.
In the technical scheme, the investigation units are divided according to the wetland patches and/or the wet areas, specifically, the wetland patches are divided separately when three-level drainage basins are different, the wetland types are different, the ponding conditions are different, the mineralization degrees are different, county-level administrative areas are different, land ownership is different, the protection conditions are different, the threatened grades of the wetlands are different or the dominant wetland utilization modes are different, so that the accurate division of the wetland boundaries is ensured.
In order to achieve the second object of the present application, a technical solution of a second aspect of the present application provides a wetland boundary defining device based on multiple factors, including: the acquisition module is used for acquiring remote sensing images, DEM elevation data and topographic map data of the periphery of the wetland; the wetland factor acquisition module is used for acquiring wetland factor data, and the wetland factor data comprises hydrological factor data, plant factor data, soil factor data and elevation factor data; the investigation unit demarcation module is used for prescribing the investigation unit according to the wetland patches and/or the wetland areas; the sampling module is used for performing wetland type field sampling; the interpretation legend making module is used for making an interpretation legend according to the remote sensing image, DEM elevation data, topographic map data and wetland factor data; the comprehensive analysis module is used for obtaining a preliminary demarcation boundary according to the field sampling result and the interpretation legend, wherein the preliminary demarcation boundary comprises a wetland boundary, a non-wetland boundary and boundaries of different wetland types; and the wetland boundary delineating module is used for obtaining a final delineating boundary and establishing a quality inspection library according to the field sampling result and the preliminary delineating boundary.
The wetland boundary delimiting device based on multiple factors comprises an acquisition module, a wetland factor acquisition module, an investigation unit delimiting module, a sampling module, an interpretation legend making module, a comprehensive analysis module and a wetland boundary delimiting module. The acquisition module is used for acquiring remote sensing images, DEM elevation data and topographic map data of the periphery of the wetland. The wetland factor acquisition module is used for acquiring wetland factor data, and the wetland factor data comprises hydrological factor data, plant factor data, soil factor data and elevation factor data. The investigation unit demarcation module is used for fixing the investigation unit according to the wetland plaque and/or the wetland area. The sampling module is used for performing wetland type field sampling. And the interpretation legend making module is used for making an interpretation legend according to the remote sensing image, DEM elevation data, topographic map data and wetland factor data. And the comprehensive analysis module is used for obtaining a preliminary demarcation boundary according to the field sampling result and the interpretation legend. The wetland boundary delimiting module obtains a final delimited boundary and establishes a library for quality inspection according to the field sampling result and the preliminary delimited boundary, so that the problem that the wetland delimiting method is not standard is solved, the delimiting method is simple, convenient, rapid and accurate, can be applied to different regional scenes, and has high flexibility.
In order to achieve the third object of the present application, a technical solution of the third aspect of the present application provides a wetland boundary defining device based on multiple factors, including: the acquisition device is used for acquiring remote sensing images, DEM elevation data and topographic map data around the wetland; the wetland factor acquisition equipment is used for acquiring data of wetland factors, and the wetland factors comprise hydrological factors, plant factors, soil factors and elevation factors; the sampling device is used for sampling the wetland type field work; the interpretation legend making device is respectively connected with the acquisition device and the wetland factor acquisition equipment and is used for making an interpretation legend according to the remote sensing image, DEM elevation data and topographic map data in combination with the wetland factor data; and the comprehensive analysis device is respectively connected with the sampling device and the interpretation legend making device and is used for acquiring data of the sampling device and the interpretation legend making device and obtaining a preliminary demarcation boundary according to the field sampling result and the interpretation legend.
According to the wetland boundary delimiting device based on multiple factors, the wetland boundary delimiting device comprises an acquisition device, wetland factor acquisition equipment, a sampling device, an interpretation legend making device and a comprehensive analysis device. The acquisition device is used for acquiring remote sensing images, DEM elevation data and topographic map data around the wetland. The wetland factor acquisition equipment is used for acquiring data of wetland factors, and the wetland factors comprise hydrological factors, plant factors, soil factors and elevation factors. The sampling device is used for sampling wetland type field work. And the interpretation legend making device is respectively connected with the acquisition device and the wetland factor acquisition equipment and is used for making an interpretation legend according to the remote sensing image, DEM elevation data, topographic map data and wetland factor data. The comprehensive analysis device is respectively connected with the sampling device and the interpretation legend making device and is used for acquiring data of the sampling device and the interpretation legend making device and obtaining a preliminary demarcation according to a field sampling result and the interpretation legend.
Among the above-mentioned technical scheme, sampling device includes soil moisture monitoring devices and vegetation analytical equipment, and soil moisture monitoring devices is used for measuring soil moisture, and vegetation analytical equipment is used for the analysis vegetation type.
In the technical scheme, the sampling device comprises a soil moisture monitoring device and vegetation analysis equipment. The soil moisture monitoring device is used for measuring soil moisture, so that the wetland boundary can be defined by utilizing the soil factors, namely the distribution range of the water and soil. The vegetation analysis equipment is used for analyzing the vegetation type, so that the wetland boundary is defined through the plant factors and the growth range of wetland plants.
In order to achieve the fourth object of the present application, a technical solution of the fourth aspect of the present application provides a wetland boundary defining device based on multiple factors, including: the wetland boundary delineation method comprises a memory and a processor, wherein the memory stores a program or an instruction which can be run on the processor, and the processor implements the steps of the wetland boundary delineation method based on multiple factors in any one of the first aspect technical solutions when executing the program or the instruction, so that the method has the technical effects of any one of the first aspect technical solutions, and is not described herein again.
In order to achieve the fifth object of the present application, in a fifth aspect of the present application, a readable storage medium is provided, where a program or an instruction is stored, and when the program or the instruction is executed by a processor, the method for demarcating a wetland boundary based on multiple factors in any one of the technical solutions of the first aspect is implemented, so that the technical effects of any one of the technical solutions of the first aspect are achieved, and details are not repeated here.
Additional aspects and advantages of the present application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart illustrating steps of a wetland boundary delineation method based on multiple factors according to an embodiment of the present application;
fig. 2 is a flowchart illustrating steps of a wetland boundary delineation method based on various factors according to an embodiment of the present application;
fig. 3 is a block diagram schematically illustrating the structure of a wetland boundary delineation device based on multiple factors according to an embodiment of the present application;
fig. 4 is a block diagram schematically illustrating the structure of a wetland boundary delineating device based on various factors according to another embodiment of the present application;
fig. 5 is a block diagram schematically illustrating the structure of a wetland boundary delineation device based on various factors according to yet another embodiment of the present application.
Wherein, the correspondence between the reference numbers and the component names in fig. 3 to 5 is:
10: a wetland boundary defining device based on multiple factors; 110: an acquisition module; 120: a wetland factor acquisition module; 130, 130; a module is demarcated by the investigation unit; 140; a sampling module; 150: an interpretation legend making module; 160; a comprehensive analysis module; 170: a wetland boundary delimiting module; 210: an acquisition device; 220: wetland factor collection equipment; 230: a sampling device; 240: an interpretation legend making device; 250: a comprehensive analysis device; 300: a memory; 400: a processor.
Detailed Description
In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.
The wetland boundary delineation method and device based on multiple factors and the readable storage medium according to some embodiments of the present application are described below with reference to fig. 1 to 5.
As shown in fig. 1, the wetland boundary delineation method based on multiple factors according to one embodiment of the present invention comprises the following steps:
step S102: acquiring remote sensing images, DEM elevation data and topographic map data of the periphery of the wetland;
step S104: collecting wetland factor data through wetland factor collecting equipment, wherein the wetland factor data comprises hydrological factor data, plant factor data, soil factor data and elevation factor data;
step S106: determining a survey unit according to the wetland patches and/or the wetland areas;
step S108: performing wetland type field sampling through a sampling device, wherein the field sampling comprises photographing landforms, land features and vegetation for evidence obtaining, measuring soil moisture and analyzing vegetation types;
step S110: an interpretation legend is made according to the remote sensing image, DEM elevation data, topographic map data and wetland factor data;
step S112: obtaining a preliminary demarcating boundary according to the field sampling result and the interpretation legend through a comprehensive analysis device, wherein the preliminary demarcating boundary comprises a wetland boundary, a non-wetland boundary and boundaries of different wetland types;
step S114: obtaining a final defined boundary and establishing a quality inspection library according to the field sampling result and the preliminary defined boundary;
the hydrological factor data comprises waterline data or waterline data, the plant factor data comprises wetland plant growth range information, the soil factor data comprises distribution range information of water and soil, and the elevation factor data comprises elevation height information of the wetland;
wetland types include inland, marsh, moss, herbaceous, bush, forest, beach and coastal wetlands.
According to the wetland boundary delineation method based on multiple factors, firstly, remote sensing images, DEM elevation data and topographic map data of the periphery of the wetland are obtained, wetland factor data are collected through wetland factor collecting equipment, and the wetland factor data comprise hydrological factor data, plant factor data, soil factor data and elevation factor data. The hydrological factor data comprises waterline data or waterline data, the plant factor data comprises the growth range information of wetland plants, the soil factor data comprises the distribution range information of aquatic soil, and the elevation factor data comprises the altitude information of the wetland. And then, defining a survey unit according to the wetland patches and the wet area, and carrying out wetland type field sampling on the survey unit through a sampling device, wherein the field sampling comprises photographing and evidence obtaining on landforms, land features and vegetation, measuring soil moisture and analyzing the vegetation type. And then, an interpretation legend is made according to the remote sensing image, DEM elevation data, topographic map data and wetland factor data. And obtaining a preliminary demarcation boundary according to the field sampling result and the interpretation legend through the comprehensive analysis device, and obtaining a final demarcation boundary and performing quality inspection to build a library according to the field sampling result and the preliminary demarcation boundary. The boundary of the wetland is defined by adopting the hydrological factors, the plant factors, the soil factors and the elevation factors, and the result is completely defined by field sampling, so that the problem that the boundary method of the wetland is not standard is solved, the boundary method is simple, convenient, rapid and accurate, can be applied to different regional scenes, and has high flexibility. The standard of the wetland demarcation technology is unified, so that the novel practitioners with insufficient experience can be easily understood and brought up quickly.
In particular, wetland types include inland wetland, swamp wetland, moss swamps, herbaceous swamps, brush swamps, forest swamps, beach wetlands, and coastal wetlands. When the wetland boundary of the inland wetland is defined, the average maximum water level of a plurality of years is taken as the boundary line between the wetland and the non-wetland for the wetland with hydrological records. For wetlands without hydrologic records, water accumulation lines or waterlogging lines are taken as boundary lines. And when the wetland boundary cannot be accurately judged by using the hydrologic factors, the distribution range of wetland plants is used as the wetland boundary. When the wetland boundary of the marsh wetland is defined, the edge of the area where water is still accumulated or waterlogged on the ground surface is the marsh wetland boundary in the dry season of the open water year. When the wetland boundary of the moss marsh is defined, most moss vegetation is mixed with forests, brush trees and herbaceous plants, and the moss vegetation takes a naked moss area as a center and extends to the outer edge of the moss distribution area when the moss marsh is divided. When the wetland boundary of the herbaceous marsh is defined, the earth surface is covered with perennial wet or aquatic vegetation, the vegetation is divided according to the colors under the vegetation, and the soil infiltration range is taken as the boundary, so that the vegetation is often expressed as dark color. When the wetland boundary of the brush marsh is defined, the earth surface covers the brush vegetation, and the soil infiltration state is mostly dark by taking the distribution edge of the flooded or waterlogged soil under the vegetation as a boundary. When the wetland boundary of the forest swamp is defined, the ground surface coverage takes forest vegetation as a main part, and takes the distribution edge of flooded or waterlogged soil under the vegetation as a boundary, so that the soil infiltration state is dark mostly. When the wetland boundary of the intertidal zone is defined, the edge of the area between the average value of the maximum water level of the lake, the river and the reservoir over the years and the average value of the minimum water level of the over the years and without water accumulation or waterlogging in the dry season of the open water year is the boundary of the intertidal zone. When the wetland boundary of the coastal wetland is defined, the boundary of the coastal wetland and the land is an average climax line, the boundary of the coastal wetland and the land is a deep line of-6 meters and the like, the boundary is defined according to the wetland second adjustment result, and the latest chart is combined for updating. The average low tide line is the boundary line for distinguishing the intertidal zone wetland and the shallow sea wetland, and the depth lines of three zero meters of homeland are adopted.
It can be understood that the periphery of the wetland has natural boundary lines such as dams and roads, or has clear identifiable markers such as waterline, waterlogging line and vegetation distribution range, the wetland boundary is preliminarily defined by combining remote sensing images with wetland factor interpretation, referring to DEM elevation data and topographic map data, and the result is defined by field investigation verification and perfection. Important landforms, ground objects, vegetation and the like need to be photographed for evidence collection during field investigation. The problem of inaccurate wetland boundary demarcation caused by the autonomous judgment of the machine is solved by a man-machine interaction mode.
Furthermore, the wetland demarcating boundary is determined, and an interpretation legend of a specific land class needs to be made, which is similar to a schematic diagram and assists in judging the wetland boundary. The features of the interpreted legend include, among others, color, grayscale, shading, shape, size, texture, pattern, geographic location, and spatial layout. The wetland boundary can be judged by interpreting the characteristics of the legend.
As shown in fig. 2, according to the wetland boundary delineation method based on multiple factors according to an embodiment of the present invention, a comprehensive analysis device is used to obtain a preliminary delineation boundary according to field sampling results and an interpretation legend, and the method specifically includes the following steps:
step S202: dividing the boundary of the wetland according to the waterlogging or waterlogging line; and/or defining wetland boundaries according to the growth range of wetland plants; and/or defining wetland boundaries according to the distribution range of the aquatic soil; and/or defining wetland boundaries according to the altitude of the wetland.
In the embodiment, a preliminary demarcation boundary is obtained according to the field sampling result and the interpretation legend through the comprehensive analysis device, specifically, a wetland boundary is demarcated according to the water accumulation lines or waterlines, a wetland boundary is demarcated according to the growth range of wetland plants, a wetland boundary is demarcated according to the distribution range of water and soil, and a wetland boundary is demarcated according to the altitude of the wetland. Wherein, the waterlogging or waterlogging line is the first factor for defining the boundary of the wetland. The growth range of wetland plants is a secondary factor for defining wetland boundaries. And when the wetland boundary cannot be determined by using the hydrological factors and the plant factors, the wetland boundary is defined by using the distribution range of the aquifer soil. The elevation of the wetland can assist in defining the wetland boundary. The wetland boundary delineation firstly delineates the wetland and non-wetland boundaries by four factors of hydrology, plants, soil and elevation, and then delineates different types of wetland boundaries in the wetland boundary range.
In the above embodiment, the wetland area includes a plurality of wetland patches. Specifically, the wetland patches are the minimum basic unit for wetland resource investigation and statistics. The wet area is a wetland complex which consists of a plurality of wetland patches and has certain hydrological relation and ecological function. When dividing wetland districts, the integrity of wetland ecosystem and the independence of landform units are considered, the wetland which meets specific conditions is divided into a wet area, and other sporadic wetlands can be divided by county as a unit and named according to the name of county administrative region.
In some embodiments, the adjusting unit is determined according to the wetland patches and/or wetland zones, and the wetland patches are divided separately when three-level drainage basins are different, wetland types are different, ponding conditions are different, mineralization degrees are different, county-level administrative areas are different, land ownership is different, protection conditions are different, the threat levels of the wetland are different or the dominant wetland utilization modes are different, so that the accurate division of wetland boundaries is ensured.
As shown in fig. 3, the embodiment of the second aspect of the present application provides a wetland boundary delineation device 10 based on multiple factors, comprising: the acquisition module 110 is used for acquiring remote sensing images, DEM elevation data and topographic map data of the periphery of the wetland; the wetland factor acquisition module 120 is used for acquiring wetland factor data, wherein the wetland factor data comprises hydrological factor data, plant factor data, soil factor data and elevation factor data; an investigation unit demarcating module 130 for demarcating an investigation unit according to the wetland patches and/or the wetland zones; the sampling module 140 is used for performing wetland type field sampling; the interpretation legend making module 150 is used for making an interpretation legend according to the remote sensing image, the DEM elevation data, the topographic map data and the wetland factor data; the comprehensive analysis module 160 is used for obtaining a preliminary demarcation boundary according to the field sampling result and the interpretation legend, wherein the preliminary demarcation boundary comprises a wetland boundary, a non-wetland boundary and boundaries of different wetland types; and the wetland boundary delineating module 170 is used for obtaining a final delineating boundary and establishing a quality inspection library according to the field sampling result and the preliminary delineating boundary.
In this embodiment, the wetland boundary delineating device 10 based on various factors includes an acquisition module 110, a wetland factor acquisition module 120, a survey unit delineating module 130, a sampling module 140, an interpretation legend making module 150, a comprehensive analysis module 160, and a wetland boundary delineating module 170. The acquisition module 110 is configured to acquire remote sensing images, DEM elevation data, and topographic map data around the wetland. The wetland factor acquisition module 120 is configured to acquire wetland factor data, where the wetland factor data includes hydrological factor data, plant factor data, soil factor data, and elevation factor data. The survey unit demarcation module 130 is used to determine survey units based on the wetland patches and/or the wetland zones. The sampling module 140 is used for wetland type field sampling. The interpretation legend making module 150 is used for making an interpretation legend according to the remote sensing images, DEM elevation data, topographic map data and wetland factor data. The comprehensive analysis module 160 is used for obtaining a preliminary demarcation boundary according to the field sampling result and the interpretation legend. The wetland boundary delineating module 170 obtains a final delineating boundary and establishes a quality inspection library according to the field sampling result and the preliminary delineating boundary, so that the problem that the wetland delineating method is not standard is solved, the delineating method is simple, convenient, rapid and accurate, can be applied to different regional scenes, and has high flexibility.
As shown in fig. 4, the embodiment of the third aspect of the present application provides a wetland boundary delineation device 10 based on multiple factors, comprising: the acquisition device 210 is used for acquiring remote sensing images, DEM elevation data and topographic map data around the wetland; the wetland factor acquisition equipment 220 is used for acquiring data of wetland factors, wherein the wetland factors comprise hydrological factors, plant factors, soil factors and elevation factors; the sampling device 230 is used for performing wetland type field sampling; the interpretation legend making device 240 is respectively connected with the acquisition device 210 and the wetland factor acquisition equipment 220 and is used for making an interpretation legend according to the remote sensing image, DEM elevation data, topographic map data and wetland factor data; the comprehensive analysis device 250 is connected to the sampling device 230 and the interpretation legend making device 240, respectively, and is configured to obtain data of the sampling device 230 and the interpretation legend making device 240, and obtain a preliminary demarcation boundary according to the field sampling result and the interpretation legend.
In this embodiment, the wetland boundary delineation device 10 based on multiple factors includes an acquisition device 210, a wetland factor collection device 220, a sampling device 230, an interpretation legend making device 240 and an integrated analysis device 250. The acquisition device 210 is used for acquiring remote sensing images, DEM elevation data and topographic map data of the periphery of the wetland. The wetland factor collecting equipment 220 is used for collecting the data of wetland factors, wherein the wetland factors comprise hydrological factors, plant factors, soil factors and elevation factors. The sampling device 230 is used for wetland type field sampling. And the interpretation legend making device 240 is respectively connected with the acquisition device 210 and the wetland factor acquisition equipment 220 and is used for making an interpretation legend according to the remote sensing image, the DEM elevation data, the topographic map data and the wetland factor data. The comprehensive analysis device 250 is connected with the sampling device 230 and the interpretation legend making device 240 respectively, and is used for acquiring data of the sampling device 230 and the interpretation legend making device 240, and obtaining a preliminary demarcation according to the field sampling result and the interpretation legend.
Further, the sampling device 230 includes a soil moisture monitoring device and vegetation analyzing equipment. The soil moisture monitoring device is used for measuring soil moisture, so that the wetland boundary can be defined by utilizing the soil factors, namely the distribution range of the water and soil. The vegetation analysis equipment is used for analyzing the vegetation type, so that the wetland boundary is defined through the plant factors and the growth range of wetland plants.
As shown in fig. 5, a wetland boundary delineating device 10 based on multiple factors is provided in the fourth aspect of the present application, and includes: the memory 300 and the processor 400, wherein a program or an instruction capable of being executed on the processor 400 is stored in the memory 300, and when the program or the instruction is executed by the processor 400, the steps of the wetland boundary defining method based on multiple factors in any of the embodiments of the first aspect are implemented, so that the technical effects of any of the embodiments of the first aspect are achieved, and details are not repeated here.
An embodiment of the fifth aspect of the present application provides a readable storage medium, on which a program or an instruction is stored, where the program or the instruction is executed by a processor to implement the steps of the wetland boundary delineation method based on multiple factors in any one of the embodiments of the first aspect, so that the technical effects of any one of the embodiments of the first aspect are achieved, and are not described herein again.
In this application, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
In the description of the present application, the description of the terms "one embodiment," "some embodiments," "a specific embodiment," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A wetland boundary delineation method based on multiple factors is characterized by comprising the following steps:
acquiring remote sensing images, DEM elevation data and topographic map data of the periphery of the wetland;
collecting wetland factor data through wetland factor collecting equipment, wherein the wetland factor data comprises hydrological factor data, plant factor data, soil factor data and elevation factor data;
determining a survey unit according to the wetland patches and/or the wetland areas;
performing wetland type field sampling through a sampling device, wherein the field sampling comprises photographing landforms, land features and vegetation for evidence obtaining, measuring soil moisture and analyzing vegetation types;
making an interpretation legend according to the remote sensing image, the DEM elevation data, the topographic map data and the wetland factor data;
obtaining a preliminary demarcating boundary according to the field sampling result and the interpretation legend through a comprehensive analysis device, wherein the preliminary demarcating boundary comprises a wetland boundary, a non-wetland boundary and boundaries of different wetland types;
obtaining a final defined boundary and establishing a quality inspection library according to the field sampling result and the preliminary defined boundary;
the hydrological factor data comprises waterline data or waterline data, the plant factor data comprises wetland plant growth range information, the soil factor data comprises distribution range information of water and soil, and the elevation factor data comprises altitude information of the wetland;
the wetland types include inland wetland, swamp wetland, moss swamp, herbaceous swamp, brush swamp, forest swamp, beach wetland and coastal wetland.
2. The multi-factor based wetland boundary delineation method according to claim 1, wherein the multi-factor based wetland boundary delineation method further comprises:
making an interpretation legend of a specific land type to assist in judging the wetland boundary;
wherein the characteristics of the interpretation legend include color, grayscale, shading, shape, size, texture, pattern, geographic location, and spatial layout.
3. The wetland boundary delineation method based on multiple factors according to claim 1 or 2, wherein the step of obtaining a preliminary delineation boundary according to the field sampling result and the interpretation legend by the comprehensive analysis device specifically comprises the following steps:
dividing a wetland boundary according to the waterlogging or waterlogging line; and/or
Defining a wetland boundary according to the growth range of wetland plants; and/or
Defining the wetland boundary according to the distribution range of the aquatic soil; and/or
And (4) defining the wetland boundary according to the altitude of the wetland.
4. The multi-factor wetland boundary delineation method according to claim 1 or 2, wherein the wet area comprises a plurality of wetland patches.
5. The wetland boundary delineation method based on multiple factors according to claim 1 or 2, wherein the conditioning unit is defined according to wetland patches and/or wetland zones, and specifically comprises:
when the wetland plaque factors have differences, the wetland plaques are divided separately;
wherein the wetland plaque factors comprise one of: the three-level drainage basin, the wetland type, the ponding condition, the mineralization degree, the county-level administrative region, the land right, the protection condition, the threat level of the wetland and the main utilization mode of the wetland.
6. A wetland boundary demarcation device based on multiple factor, its characterized in that includes:
the acquisition module (110) is used for acquiring remote sensing images, DEM elevation data and topographic map data of the periphery of the wetland;
the wetland factor acquisition module (120) is used for acquiring wetland factor data, and the wetland factor data comprises hydrological factor data, plant factor data, soil factor data and elevation factor data;
an investigation unit demarcating module (130) for demarcating an investigation unit according to the wetland plaque and/or the wetland area;
the sampling module (140) is used for sampling the wetland type field;
the interpretation legend making module (150) is used for making an interpretation legend according to the remote sensing image, the DEM elevation data and the topographic map data in combination with the wetland factor data;
the comprehensive analysis module (160) is used for obtaining a preliminary demarcation boundary according to the field sampling result and the interpretation legend, and the preliminary demarcation boundary comprises wetland and non-wetland boundaries and boundaries of different wetland types;
and the wetland boundary delineating module (170) is used for obtaining a final delineating boundary and building a quality inspection library according to the field sampling result and the preliminary delineating boundary.
7. A wetland boundary demarcation device based on multiple factor, its characterized in that includes:
the acquisition device (210) is used for acquiring remote sensing images, DEM elevation data and topographic map data of the periphery of the wetland;
the wetland factor acquisition equipment (220) is used for acquiring data of wetland factors, and the wetland factors comprise hydrological factors, plant factors, soil factors and elevation factors;
the sampling device (230) is used for sampling the wetland type field work;
the interpretation legend making device (240) is respectively connected with the acquisition device (210) and the wetland factor acquisition equipment (220) and is used for making an interpretation legend according to the remote sensing image, the DEM elevation data and the topographic map data in combination with the wetland factor data;
and the comprehensive analysis device (250) is respectively connected with the sampling device (230) and the interpretation legend making device (240) and is used for acquiring data of the sampling device (230) and the interpretation legend making device (240) and obtaining a preliminary demarcation boundary according to the field sampling result and the interpretation legend.
8. The multi-factor wetland boundary delineation device of claim 7, wherein the sampling device (230) comprises a soil moisture monitoring device for measuring soil moisture and a vegetation analysis device for analyzing vegetation type.
9. A wetland boundary demarcation device based on multiple factor, its characterized in that includes:
a memory (300) and a processor (400), wherein the memory (300) has stored thereon a program or instructions executable on the processor (400), the processor (400) when executing the program or instructions implementing the multi-factor wetland bounding method of any one of claims 1 to 5.
10. A readable storage medium on which a program or instructions are stored, which when executed by a processor implement the steps of the multi-factor based wetland boundary delineation method of any one of claims 1 to 5.
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