CN117541078A

CN117541078A - Ecological protection strategy customizing method based on artificial canal development

Info

Publication number: CN117541078A
Application number: CN202311551374.8A
Authority: CN
Inventors: 张利国; 韩兆兴; 唐玮; 程金香; 张宁; 高玉健; 刘铧桐; 夏楷; 徐洪磊
Original assignee: Transport Planning And Research Institute Ministry Of Transport
Current assignee: Transport Planning And Research Institute Ministry Of Transport
Priority date: 2023-11-21
Filing date: 2023-11-21
Publication date: 2024-02-09
Anticipated expiration: 2043-11-21
Also published as: CN117541078B

Abstract

The invention discloses an ecological protection strategy customizing method based on artificial canal development, which comprises the following steps: firstly, canal engineering construction information and current channel information of a river to be treated are acquired, and then a plurality of cut straight river sections are determined. Then, based on these information, an environmental simulation model of the river to be treated is constructed. And determining an ecological conservation area from the cut and straightened river reach, and determining a corresponding ecological evaluation index according to the environment simulation model. And then, calculating to obtain the ecological sensitivity index of the preset ecological function target. And finally, determining an ecological protection strategy of the ecological conservation area according to the ecological sensitivity index. By means of the design, the customized ecological protection strategy with high practicability and sustainability is provided for various canal projects by comprehensively examining the river environment, constructing an environment simulation model and calculating the ecological sensitivity index.

Description

Ecological protection strategy customizing method based on artificial canal development

Technical Field

The invention relates to the technical field of ecological environment supervision, in particular to an ecological protection strategy customizing method based on artificial canal development.

Background

With the advancement of urbanization, the development of artificial canals is more and more frequent.

However, in this process, the river ecosystem may suffer significant disruption due to the lack of an effective ecological protection strategy.

Therefore, how to effectively protect the river ecosystem while performing artificial canal development becomes a significant challenge in the current environmental protection field.

Disclosure of Invention

The invention aims to provide an ecological protection strategy customizing method based on artificial canal development.

In a first aspect, an embodiment of the present invention provides a method for customizing an ecological protection policy based on artificial canal development, including:

acquiring canal engineering construction information and river current information of a river to be treated;

determining a plurality of cut straight river segments based on the canal engineering construction information and the current channel information;

constructing an environment simulation model of the river to be processed based on the canal engineering construction information, the river current information and the plurality of cut straight river segments;

determining an ecological conservation area from the plurality of cut straight river segments, and determining an ecological evaluation index corresponding to the ecological conservation area based on the environment simulation model;

According to the ecological evaluation index, calculating to obtain an ecological sensitivity index of a preset ecological function target;

and determining an ecological protection strategy of the ecological conservation area according to the ecological sensitivity index.

In one possible implementation manner, the determining a plurality of cut straight segments based on the canal engineering construction information and the river current information includes:

determining a canal engineering line position from the canal engineering construction information;

determining current river vector data from the river current information;

and carrying out space superposition analysis on the canal engineering line position and the current river vector data to determine the plurality of cut straight sections.

In one possible implementation manner, the constructing the environmental simulation model of the river to be treated based on the canal engineering construction information, the river current information and the plurality of cut straight segments includes:

acquiring hydrodynamic force basic information and water environment basic information from the river current information;

based on the hydrodynamic force basic information, calling a preset model to construct an initial hydrodynamic force model, and calibrating and verifying the initial hydrodynamic force model;

Based on the water environment basic information, calling the initial hydrodynamic model which passes through calibration and verification to construct an initial water environment model, and calibrating and verifying the initial water environment model;

acquiring a canal engineering initial value condition from the canal engineering construction information;

and based on the canal engineering initial value condition, calling, calibrating and verifying the passed initial hydrodynamic model and the initial water environment model, and constructing to obtain the environment simulation model.

In one possible implementation manner, the determining the ecological conservation area from the plurality of cut straight river segments, and determining the ecological evaluation index corresponding to the ecological conservation area based on the environmental simulation model includes:

acquiring a target water depth, a target water body exchange period and a target area of a target cut straight river reach; the target cut straight river reach is any one of the plurality of cut straight river reach;

when the target water depth is larger than a preset water depth threshold value, the target water body exchange period is smaller than a preset water body exchange period threshold value and larger than the target area, taking the target cut straight river reach as the ecological conservation area;

And determining an ecological evaluation index corresponding to the ecological conservation area based on the environment simulation model.

In a possible implementation manner, the determining, based on the environmental simulation model, an ecological evaluation index corresponding to the ecological conservation area includes:

determining a plurality of initial ecological evaluation indexes corresponding to the ecological conservation area based on the environment simulation model;

performing positive normalization operation or negative normalization operation on the initial ecological evaluation indexes according to a preset rule to obtain a plurality of standard ecological evaluation indexes corresponding to the initial ecological evaluation indexes one by one;

and taking the plurality of standard ecological evaluation indexes as the ecological evaluation indexes.

In one possible implementation manner, the calculating the ecological sensitivity index of the preset ecological function target according to the ecological evaluation index includes:

under the condition that the preset ecological function target is water quality maintenance and guarantee, the ecological evaluation index comprises a water quality sensitivity index, wherein the water quality sensitivity index comprises an ecological conservation area, a river reach bending coefficient, a flow rate, a water depth, a water body exchange period, a split ratio with a main river channel, an eutrophication level and a distribution condition of a drinking water source; by the formula: Calculating to obtain a water quality sensitivity index, wherein +_>Index of sensitivity to water quality>Is used as a water quality sensitivity index, and the ∈10 is prepared from>The weight of the water quality sensitivity index is determined based on an analytic hierarchy process;

in the case that the preset ecological function target is a fish habitat, the ecological evaluation index comprises an ecological sensitivity index, wherein the ecological sensitivity index comprises an area of an ecological conservation area, a flow rate, a water depth, a phytoplankton density, a phytoplankton diversity, a zooplankton biomass, a zooplankton diversity, a benthonic animal biomass, a benthonic animal diversity, a fish number, a fish diversity and a spawning site distribution condition;

by the formulaCalculating to obtain an aquatic attitude sensitivity index, wherein +.>Water sensitivity index, & gt>Is an index of water ecology sensitivity>A weight for the water ecology sensitivity index, the weight determined based on an analytic hierarchy process; under the condition that the preset ecological function target is bird habitat creation, the ecological evaluation index comprises bird sensitivity indexes, wherein the bird sensitivity indexes comprise the area of an ecological conservation area, the water depth, the vegetation coverage condition, the number of birds and the diversity of birds;

By the formulaCalculating to obtain bird sensitivity index, wherein ∈>For the index of susceptibility to birds,is an index of susceptibility to birds, meta-L>The weight of the bird sensitivity index is determined based on an analytic hierarchy process.

In one possible embodiment, the determining an ecological protection strategy for the ecological conservation area according to the ecological sensitivity index includes:

if the water quality sensitivity index is larger than a preset water quality sensitivity index threshold, taking the water quality maintenance guarantee as a first key target, and extracting an ecological protection strategy associated with the first key target from a preset strategy database;

if the water ecological sensitivity index is larger than a preset water ecological sensitivity index threshold, constructing the fish habitat as a second key target, and extracting an ecological protection strategy associated with the second key target from the preset strategy database;

if the bird sensitivity index is larger than a preset bird sensitivity index threshold, constructing the bird habitat as a third key target, and extracting an ecological protection strategy associated with the third key target from a preset strategy database.

In a second aspect, an embodiment of the present invention provides an ecological protection policy customizing apparatus based on artificial canal development, including:

The acquisition module is used for acquiring canal engineering construction information of the river to be processed and current information of the river;

the calculation module is used for determining a plurality of cut straight river segments based on the canal engineering construction information and the current channel information; constructing an environment simulation model of the river to be processed based on the canal engineering construction information, the river current information and the plurality of cut straight river segments; determining an ecological conservation area from the plurality of cut straight river segments, and determining an ecological evaluation index corresponding to the ecological conservation area based on the environment simulation model; according to the ecological evaluation index, calculating to obtain an ecological sensitivity index of a preset ecological function target;

and the strategy module is used for determining an ecological protection strategy of the ecological conservation area according to the ecological sensitivity index.

In a third aspect, an embodiment of the present invention provides a computer device, where the computer device includes a processor and a nonvolatile memory storing computer instructions that, when executed by the processor, perform an ecological protection policy customization method based on artificial canal development in at least one possible implementation of the first aspect.

In a fourth aspect, an embodiment of the present invention provides a readable storage medium, where the readable storage medium includes a computer program, where the computer program controls a computer device where the readable storage medium is located to execute an ecological protection policy customizing method based on artificial canal development in at least one possible implementation manner of the first aspect.

Compared with the prior art, the invention has the beneficial effects that: by adopting the ecological protection strategy customization method based on artificial canal development, canal engineering construction information and river channel current situation information of a river to be treated are obtained, and then a plurality of cut straight river sections are determined.

Then, based on these information, an environmental simulation model of the river to be treated is constructed.

And determining an ecological conservation area from the cut and straightened river reach, and determining a corresponding ecological evaluation index according to the environment simulation model.

And then, calculating to obtain the ecological sensitivity index of the preset ecological function target.

And finally, determining an ecological protection strategy of the ecological conservation area according to the ecological sensitivity index.

By means of the design, the customized ecological protection strategy with high practicability and sustainability is provided for various canal projects by comprehensively examining the river environment, constructing an environment simulation model and calculating the ecological sensitivity index.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described.

It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope.

Other relevant drawings may be made by those of ordinary skill in the art without undue burden from these drawings.

Fig. 1 is a schematic flow chart of steps of an ecological protection policy customizing method based on artificial canal development provided by the embodiment of the invention;

fig. 2 is a schematic block diagram of an ecological protection policy customizing device based on artificial canal development according to an embodiment of the present invention;

fig. 3 is a schematic block diagram of a computer device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

It will be apparent that the described embodiments are some, but not all, embodiments of the invention.

The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships conventionally put in place when the product of the application is used, or the directions or positional relationships conventionally understood by those skilled in the art are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, terms such as "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

The following describes specific embodiments of the present invention in detail with reference to the drawings.

In order to solve the technical problems in the foregoing background technology, fig. 1 is a schematic flow chart of an ecological protection policy customization method based on artificial canal development according to an embodiment of the present disclosure, and the ecological protection policy customization method based on artificial canal development is described in detail below.

Step S201, canal engineering construction information of a river to be processed and current information of the river are obtained;

Step S202, determining a plurality of cut straight river segments based on the canal engineering construction information and the current channel information;

step S203, constructing an environment simulation model of the river to be processed based on the canal engineering construction information, the river current information and the plurality of cut straight river segments;

step S204, determining an ecological conservation area from the plurality of cut straight river segments, and determining an ecological evaluation index corresponding to the ecological conservation area based on the environment simulation model;

step S205, calculating to obtain an ecological sensitivity index of a preset ecological function target according to the ecological evaluation index;

and S206, determining an ecological protection strategy of the ecological conservation area according to the ecological sensitivity index.

In the embodiment of the invention, a certain area decides to customize an ecological protection strategy for a manual canal.

In order to obtain canal engineering construction information and river current information of a river to be processed, related institutions dispatch staff for field investigation and data collection.

The staff collects the canal engineering construction data of past years, including engineering planning, design drawing, construction record, etc.

Such information may reveal historical development and modification of the canal, including whether there is a record of the stretch-break straightening project.

Next, the staff performs site investigation to know the actual condition of the river channel in detail.

They measure the length, width and depth of the river channel and record the data of the topography features, water flow speed, water quality status, etc. of the key positions.

Meanwhile, ecological information such as coastal vegetation, wild animal species and the like can be observed by the system for subsequent analysis.

By collecting these canal engineering construction information and river current information, the staff can obtain overall knowledge of the river to be treated, providing basic data for subsequent steps.

On the basis of canal engineering construction information and river current information collected in the previous step, the staff starts to determine the cut straight river reach.

First, they carefully analyze the curve trend of the canal and find out the segments where the curves exist according to the existing engineering planning and design drawings.

These curved stretches may be of historical origin or may be related to natural terrain.

And secondly, by combining the data of field investigation, the staff evaluates the influence of each curved river segment on the water flow by calculating parameters such as the curvature radius, the flow velocity and the like of the river channel.

They can also make visual analysis of the river channel shape by means of Geographic Information System (GIS) tools, so as to better understand the change condition of the river channel.

And finally, according to the analysis results, the staff determines a plurality of river sections needing to be cut and straightened.

The segments may be located at different locations and may be of different lengths.

However, they all have in common that they have a large impact on the overall canal's water flow mechanics and require adjustments to improve water flow conditions.

After determining the river reach to be cut and straightened, the staff starts to construct an environment simulation model of the river to be treated so as to further evaluate the ecological environment and hydrodynamic characteristics of the river reach.

First, they collect and sort the canal engineering construction information, the current river channel information, and the related data of the cut straight river reach obtained before.

These data include parameters such as river geometry, water flow rate, water level variation, etc.

Then, with the help of professional hydrologic water resource simulation software, staff inputs these data into the model and makes reasonable parameter settings.

They can perform environmental simulation of the river to be treated using the tools and functions provided in the model. The simulation may include water flow simulation, water quality simulation, water level change simulation, and the like.

Through the simulation, staff can observe and analyze the influence of different cutting straight river reach on water flow, water quality and ecological environment.

They can evaluate the hydraulic characteristic changes before and after transformation, such as water flow speed, water level change, and conservation ability.

Meanwhile, they can also simulate the water quality parameters and evaluate the water quality improvement or deterioration.

The simulation result provides important basis for the subsequent steps, and helps staff to further know the current environment situation of the river to be treated and the potential effect of the cutting and straightening engineering.

After the environment simulation is carried out, the staff determines the ecological conservation area from the determined straight river reach by cutting and bending according to the simulation result and the expertise.

They will combine hydrodynamic properties, ecological requirements and protection goals, taking into account the following factors:

water flow rate and water level change: selecting river reach with key effect on ecological restoration and maintenance, such as coastal wetland, migration fish hatching area, etc.

Biodiversity protection: areas of significant importance to the local ecosystem are preferentially selected to maintain and promote diversity of species.

Water quality improvement: consider areas where water quality is more contaminated to provide suitable ecological conditions.

Based on the result of the environmental simulation model, the staff can also determine the ecological evaluation index corresponding to the ecological conservation area.

Such metrics may include water quality metrics (e.g., dissolved oxygen content, nitrogen-phosphorus concentration), biological metrics (e.g., biodiversity index, habitat suitability), and landscape metrics (e.g., wetland area, river connectivity), among others. Based on the determined ecological evaluation index, the staff starts to calculate the ecological sensitivity index of the preset ecological function target.

They will combine different evaluation indexes to perform corresponding calculations and analyses for each ecological conservation area.

For example, for water quality indicators, they may calculate a corresponding pollution sensitivity index based on water quality data and threshold settings.

For biological indexes, they can calculate the biological diversity protection sensitivity index according to factors such as species diversity, rarity and the like.

Through these calculations and analyses, the staff can quantify the importance and sensitivity of each ecological conservation area to achieve the preset ecological functional objectives.

These sensitivity indices will provide decision support for subsequent ecological protection policy formulation.

The final step is to determine the ecological protection strategy for each ecological conservation zone based on the calculated ecological susceptibility index.

Based on the ecological susceptibility index, workers can differentiate ecological conservation into high, medium and low susceptibility areas.

For highly sensitive areas, more stringent and focused protection strategies need to be adopted to ensure the integrity and stability of their ecological functions.

A moderately sensitive region may require some protective measures to maintain the health of its ecosystem, while a less sensitive region may require less intervention or remain the same.

Depending on the particular situation, the established ecological protection policy may involve the following aspects:

and (3) water quality management: aiming at the high-sensitivity area, the water quality monitoring and treatment measures are enhanced, the emission of pollution sources is reduced, and the good state of water quality is maintained.

Habitat restoration: repairing and recovering habitats such as damaged wetlands, riverbank and the like, providing proper habitat conditions and promoting the survival and reproduction of species.

Biological resource protection: aiming at specific protection objects (such as endangered species, important bird habitats and the like), a corresponding protection plan is formulated, the influence of human activities on the protection objects is limited, and the population quantity and distribution stability of the protection objects are ensured.

Hydraulic regulation: optimizing the water flow scheduling scheme, and ensuring that the water level, the flow rate, the water quality and other environmental conditions of the ecological conservation area meet the demands of organisms and an ecological system.

And (3) comprehensive management and monitoring: a scientific management system is established, a monitoring plan and an evaluation index are formulated, comprehensive evaluation and monitoring are carried out on the ecological conservation area at regular intervals, and a protection strategy is timely adjusted to adapt to changing environmental conditions.

The ecological protection strategies are formulated according to different sensitivity degrees and specific requirements of each ecological conservation area, and aim to achieve preset ecological function targets and ensure that the ecological environment of the artificial canal is effectively protected and sustainable development.

In one possible implementation, the aforementioned step S202 may be performed by the following steps.

(1) Determining a canal engineering line position from the canal engineering construction information;

(2) Determining current river vector data from the river current information;

(3) And carrying out space superposition analysis on the canal engineering line position and the current river vector data to determine the plurality of cut straight sections.

In the embodiment of the invention, the staff collects canal engineering construction data of the past few years, including engineering planning, design drawings and construction records.

They have studied these materials carefully, including the specific line location information of the canal.

For example, the engineering plan may contain the start and end locations of the canal, as well as the important nodes of the route.

The design drawings can provide detailed information on the geometry and curve trend of the canal.

By analyzing these data, the staff can determine the engineering line location of the canal.

The staff performs the field investigation to know the current situation of the river channel in detail.

Meanwhile, they also observe ecological information such as coastal vegetation, wild animal species and the like.

From these survey data, the staff obtains various attributes and characteristics of the current river, such as the geometry of the river channel, flow velocity distribution, etc.

These data can be used to construct vector data for the current river.

And (3) carrying out space superposition analysis on vector data of the canal engineering line position and the current river by using tools such as a Geographic Information System (GIS) and the like by workers.

They will compare the canal engineering line position to the geometry of the current river and identify the presence of a curve or unexpected segment.

Through space superposition analysis, a plurality of river reach needing to be cut, bent and straightened can be determined by staff.

These segments may exhibit significant curvature, small radii of curvature, or inconsistent planning.

The analysis result provides important basis for subsequent environment simulation and ecological protection strategy formulation.

In the embodiment of the present invention, the aforementioned step S203 may be implemented by the following steps.

(1) Acquiring hydrodynamic force basic information and water environment basic information from the river current information;

(2) Based on the hydrodynamic force basic information, calling a preset model to construct an initial hydrodynamic force model, and calibrating and verifying the initial hydrodynamic force model;

(3) Based on the water environment basic information, calling the initial hydrodynamic model which passes through calibration and verification to construct an initial water environment model, and calibrating and verifying the initial water environment model;

(4) Acquiring a canal engineering initial value condition from the canal engineering construction information;

(5) And based on the canal engineering initial value condition, calling, calibrating and verifying the passed initial hydrodynamic model and the initial water environment model, and constructing to obtain the environment simulation model.

In the embodiment of the invention, workers acquire hydrodynamic basic information of the current state of the river channel, such as water level, flow velocity, water depth and the like by using methods such as measuring equipment, hydrologic test and the like.

Meanwhile, they also collect basic information of water environment, such as water quality parameters (dissolved oxygen, nitrogen and phosphorus, etc.), substrate characteristics, vegetation distribution, etc.

These data will form the basis for building an environmental simulation model.

And the staff builds an initial hydrodynamic model by using the obtained hydrodynamic basic information according to the hydrodynamic principle and the related model.

For example, they may use one-or two-dimensional hydrodynamic models and set boundary conditions and initial conditions.

And then, comparing the initial hydrodynamic model with measured data to rate and verify the initial hydrodynamic model so as to improve the accuracy and the credibility of the model.

And the staff utilizes the obtained water environment basic information, and combines the initial hydrodynamic model which passes the calibration and verification to construct an initial water environment model.

The model can consider the water environment processes such as water quality transmission, dissolved oxygen balance, pollutant diffusion and the like.

And then, calibrating and verifying the initial water environment model to ensure that the simulation result is consistent with the actual situation.

And according to the collected canal engineering construction information, the staff extracts relevant canal engineering initial value conditions, such as inlet flow, outlet water level and the like.

These initial conditions will be used as input parameters for the environmental simulation model.

And combining the canal engineering initial value condition with the initial hydrodynamic model and the initial water environment model which pass the calibration and verification by the staff to construct a final environment simulation model.

The model is to comprehensively consider hydrodynamic force and water environment processes and simulate the change conditions of water flow, water quality, water level and the like of the river to be treated.

By evaluating and verifying the model, the staff can obtain an accurate and reliable environment simulation result, and provide a basis for subsequent ecological evaluation and protection strategy formulation.

In the embodiment of the present invention, the aforementioned step S204 may be implemented by the following steps.

(1) Acquiring a target water depth, a target water body exchange period and a target area of a target cut straight river reach; the target cut straight river reach is any one of the plurality of cut straight river reach;

(2) When the target water depth is larger than a preset water depth threshold value, the target water body exchange period is smaller than a preset water body exchange period threshold value and larger than the target area, taking the target cut straight river reach as the ecological conservation area;

(3) And determining an ecological evaluation index corresponding to the ecological conservation area based on the environment simulation model.

In the embodiment of the invention, in the result of the cut straight river reach analysis, a worker selects a target cut straight river reach to further determine the ecological conservation area.

They set the target water depth, target water exchange period and target area of the target cut straight river reach according to specific ecological protection requirements.

For example, the target water depth may be to provide a suitable habitat, the target water exchange period may be to promote cyclic renewal of water quality, and the target area may be to accommodate a particular biological community.

And the staff screens and evaluates the target cut straight river reach according to the preset water depth threshold value, the water body exchange period threshold value and other conditions.

If the target water depth is greater than the preset water depth threshold, the target water exchange period is less than the preset water exchange period threshold, and the target area meets the requirements, the cut-and-straightened river reach is determined to be a ecological conservation area.

This means that the area is provided with basic conditions that fulfil ecological protection requirements.

And the staff further analyzes and evaluates the determined ecological conservation area by utilizing the environment simulation model constructed in the prior to acquire corresponding ecological evaluation indexes.

Through the simulation model, they can obtain various parameters and indexes related to the ecosystem, such as biodiversity index, water quality index, habitat quality assessment, etc.

The indexes can be used for quantifying the ecological functions and the ecological benefits of the ecological conservation area, and providing scientific basis for subsequent ecological protection decision and management.

By the design, the staff successfully determines a cut straight river reach as an ecological conservation area by setting target conditions and using an environment simulation model, and obtains corresponding ecological evaluation indexes, thereby providing basis for further ecological protection measures.

In the embodiment of the present invention, the above-mentioned step of determining the ecological evaluation index corresponding to the ecological conservation area based on the environmental simulation model may be implemented in the following manner.

(1) Determining a plurality of initial ecological evaluation indexes corresponding to the ecological conservation area based on the environment simulation model;

(2) Performing positive normalization operation or negative normalization operation on the initial ecological evaluation indexes according to a preset rule to obtain a plurality of standard ecological evaluation indexes corresponding to the initial ecological evaluation indexes one by one;

(3) And taking the plurality of standard ecological evaluation indexes as the ecological evaluation indexes.

In the embodiment of the invention, by using the environmental simulation model constructed before, a worker analyzes the determined ecological conservation area to obtain a plurality of initial ecological evaluation indexes.

These indices may include the results of evaluation in terms of biodiversity index, water quality index, habitat area, etc.

Each index provides information about characteristics and ecological conditions of the ecological conservation area.

In order to compare and comprehensively analyze the evaluation results of different indexes, a worker performs a positive normalization operation or a negative normalization operation on a plurality of initial ecological evaluation indexes according to a preset rule.

Positive normalization may map the index values to a range between 0 and 1 so that the indices are comparable; the inverse normalization operation restores the index value to the original metric range.

By such an operation, each initial ecological assessment index is associated with a corresponding standard ecological assessment index.

After normalization operation, the staff takes the obtained multiple standard ecological evaluation indexes as final ecological evaluation indexes.

These indicators can objectively reflect the characteristics and status of different aspects of the ecological support area and can be used to compare the ecological status of different areas or at different points in time.

For example, a unified scoring system may be used to comprehensively evaluate biodiversity, water quality, habitat, etc., to obtain a comprehensive ecological assessment index.

Through the steps, the staff determines the ecological evaluation index of the ecological conservation area based on the environment simulation model, and converts the ecological evaluation index into the standard evaluation index through normalization operation, so that the results of different indexes can be better understood and compared. The use of these metrics may support environmental protection decision making and ecological management work.

In the embodiment of the present invention, the aforementioned step S205 may be implemented by performing the following manner.

(1) Under the condition that the preset ecological function target is water quality maintenance and guarantee, the ecological evaluation index comprises a water quality sensitivity index, wherein the water quality sensitivity index comprises an ecological conservation area, a river reach bending coefficient, a flow rate, a water depth, a water body exchange period, a split ratio with a main river channel, an eutrophication level and a distribution condition of a drinking water source; (2) by the formula:calculating to obtain water qualitySensitivity index, wherein->Index of sensitivity to water quality>Is used as a water quality sensitivity index, and the ∈10 is prepared from>The weight of the water quality sensitivity index is determined based on an analytic hierarchy process;

(3) In the case that the preset ecological function target is a fish habitat, the ecological evaluation index comprises an ecological sensitivity index, wherein the ecological sensitivity index comprises an area of an ecological conservation area, a flow rate, a water depth, a phytoplankton density, a phytoplankton diversity, a zooplankton biomass, a zooplankton diversity, a benthonic animal biomass, a benthonic animal diversity, a fish number, a fish diversity and a spawning site distribution condition;

(4) By the formulaCalculating to obtain an aquatic attitude sensitivity index, wherein +.>Is water ecology sensitivity index->Is an index of water ecology sensitivity>A weight for the water ecology sensitivity index, the weight determined based on an analytic hierarchy process;

(5) Under the condition that the preset ecological function target is bird habitat creation, the ecological evaluation index comprises bird sensitivity indexes, wherein the bird sensitivity indexes comprise the area of an ecological conservation area, the water depth, the vegetation coverage condition, the number of birds and the diversity of birds;

(6) By the formulaCalculating to obtain bird sensitivity index, wherein ∈>For avian susceptibility index, < >>Is an index of susceptibility to birds, meta-L>The weight of the bird sensitivity index is determined based on an analytic hierarchy process.

In the embodiment of the invention, when a specific ecological conservation area is evaluated, the ecological sensitivity index can be calculated according to different preset ecological function targets. The following is a more detailed illustration of the scenario:

the preset ecological function target is water quality maintenance and guarantee, and in this case, we want to evaluate the influence and sensitivity of the ecological conservation area on the water quality so as to ensure that the water quality is maintained and guaranteed.

The water quality sensitivity index includes a plurality of factors such as ecological conservation area, river reach bending coefficient, flow velocity, water depth, water body exchange period, split ratio with the main river channel, eutrophication level and distribution condition of drinking water source.

Through analytic hierarchy process, the expert group conference determines the relative weight of each index to reflect its importance in water quality maintenance.

For example, for a specific ecological conservation zone, it is assumed that the area of the ecological conservation zone is 1 square kilometer, the bending coefficient of the river reach is 1.8, the flow rate is 0.5 m/s, the water depth is 3 m, the water body exchange period is 3 days, the split ratio of the water body exchange period to the main river channel is 0.2, and the eutrophication level is medium.

According to the weight determined by the expert group, for example, the weight of the area of the ecological conservation area is 0.2, the weight of the bending coefficient of the river reach is 0.3, and the like, the water quality sensitivity index of the ecological conservation area can be calculated by multiplying the value of each index by the corresponding weight and summing the values.

The preset ecological function target is to build a fish habitat, in which case we want to evaluate the suitability and sensitivity of the ecological conservation area to the fish habitat to promote the increase of the number and diversity of fish.

The water ecology sensitivity index includes a plurality of factors such as the area of the ecological conservation zone, the flow rate, the water depth, the phytoplankton density, the phytoplankton diversity, the zooplankton biomass, the zooplankton diversity, the benthonic animal biomass, the benthonic animal diversity, the fish number, the fish diversity and the spawning ground distribution.

Through analytic hierarchy process, the expert group conference determines the relative weight of each index to reflect its importance in fish habitat construction.

The preset ecological functional targets are for creation of avian habitats in which case we wish to evaluate the suitability and sensitivity of ecological conservation zones for avian habitats to provide plentiful habitat and meet the requirements of bird reproduction, foraging and migration.

The avian sensitivity index includes a number of factors such as the area of the ecological conservation area, the water depth, the vegetation cover, the number of birds, and the diversity of birds.

Through analytic hierarchy process, the expert group conference determines the relative weight of each index to reflect its importance in bird habitat construction.

For example, for a specific ecological conservation area, the area of the ecological conservation area is 1 square kilometer, the water depth is moderate, the vegetation coverage is rich, the number of birds is large, and the diversity of birds is high.

According to the weight determined by the expert group, for example, the weight of the area of the ecological conservation area is 0.25, the weight of the water depth is 0.15, and the like, the value of each index is multiplied by the corresponding weight and summed, so that the bird sensitivity index of the ecological conservation area can be calculated.

By way of illustration of the above scenario, we can calculate the ecological susceptibility index according to different preset ecological function targets, thereby evaluating the importance and susceptibility of the ecological conservation area under different targets.

Calculation of these indices can provide powerful support for environmental management and protection decisions based on expert knowledge and scientific data to achieve sustainable ecological protection and management goals.

In another implementation of the embodiment of the present invention, taking bird habitat creation as an example, when assessing bird habitat creation of an ecological conservation area, the following is a more detailed specific step:

ecological evaluation index:

area: birds often require sufficient habitat area to reproduce, feed, and migrate. Therefore, the area of the ecological conservation area is an important index.

Depth of water: the water depth has different effects on different kinds of birds.

Some birds prefer shallower water areas, while others require deeper water areas.

A suitable water depth may provide a suitable habitat.

Vegetation coverage: the abundant vegetation can provide food, shelter and nesting sites for birds.

The assessment of vegetation coverage may include aspects of vegetation type, vegetation density, and vegetation structure.

Bird number: assessing the number of birds present in an ecological support area may reflect its importance as a habitat for birds.

Bird diversity: considering the protection requirements of different bird species, assessing the diversity of birds in ecological conservation areas helps to understand their value in the ecological system.

Weight determination:

the relative weight of each index is determined by expert group conferences or by using analytic hierarchy process, etc.

The expert assigns weights according to his experience and knowledge, taking into account the importance of different indices to the creation of bird habitats.

More important indicators will get higher weights, while less important indicators will get lower weights.

Bird susceptibility index was calculated:

for each index, a corresponding value is given based on the actual data or available evaluation results.

The value of each index is multiplied by the corresponding weight and added to obtain an overall bird susceptibility index.

This index may reflect the suitability and sensitivity of the ecological conservation zone for bird habitat creation.

For example, it is assumed that the area of a certain ecological conservation area is 1 square kilometer, the water depth is moderate, the vegetation coverage is rich, the number of birds is large, and the diversity of birds is high.

In an expert group conference, they might decide to weight the area to 0.25, the water depth to 0.15, the vegetation coverage to 0.2, the birds number to 0.2, and the birds diversity to 0.2.

According to the weights and the corresponding index values, the value of each index is multiplied by the corresponding weight and summed, and the bird sensitivity index of the ecological conservation area can be calculated.

By detailed specific steps, we can more accurately assess the fitness and susceptibility of ecological conservation areas to the creation of avian habitats.

This helps to formulate effective strategies for bird protection and management and promotes sustainable biodiversity protection.

In the embodiment of the present invention, the aforementioned step S206 may be performed by the following steps.

(1) If the water quality sensitivity index is larger than a preset water quality sensitivity index threshold, taking the water quality maintenance guarantee as a first key target, and extracting an ecological protection strategy associated with the first key target from a preset strategy database;

(2) If the water ecological sensitivity index is larger than a preset water ecological sensitivity index threshold, constructing the fish habitat as a second key target, and extracting an ecological protection strategy associated with the second key target from the preset strategy database;

(3) If the bird sensitivity index is larger than a preset bird sensitivity index threshold, constructing the bird habitat as a third key target, and extracting an ecological protection strategy associated with the third key target from a preset strategy database.

In the embodiment of the invention, the preset water quality sensitivity index threshold is assumed to be 0.7, and the water quality sensitivity index of the ecological conservation area is assumed to be 0.8.

Since the threshold is exceeded, we have water quality maintenance assurance as the first key goal.

Extracting strategies related to water quality maintenance and guarantee from a preset strategy database, such as strengthening water source protection, including pesticide use limitation, industrial wastewater emission inhibition and the like; controlling agricultural non-point source pollution, adopting reasonable fertilization measures, popularizing farmland permeation prevention technology and the like; popularization of ecological agriculture technology, such as organic agriculture, biological control and the like; and constructing a wetland purifying system, taking the wetland as a natural purifier, and improving the water quality of the water body.

Assume that the preset water ecology sensitivity index threshold is 0.6 and the water ecology sensitivity index of the ecological conservation area is 0.7.

Since the threshold is exceeded, we have created fish habitat as the second key objective.

Extracting strategies related to fish habitat construction from a preset strategy database, such as restoring river connectivity, building or cleaning fish migration channels so as to facilitate fish migration; improving the water body structure, increasing the diversity of habitat, such as revegetation of river bank zone, regulation and control of lake phytoplankton, and the like; protecting and restoring wetland ecosystem, and being used as important propagation places and habitats of fishes.

Assume that the preset bird susceptibility index threshold is 0.8 and the bird susceptibility index of the ecological conservation zone is 0.9.

Since the threshold is exceeded, we have created an avian habitat as the third key objective.

Extracting policies related to bird habitat construction from a preset policy database, such as protecting important bird habitats, establishing a protection area and limiting human interference; the diversity of seed vegetation is increased, and more abundant food resources are provided; creating artificial bird nests and foraging places, and providing safe breeding and foraging environments; controls illegal hunting and collection activities and protects birds from the threat of illegal fishing activities.

A more specific overall step flow of embodiments of the present invention is provided below.

And step A, clearly researching an area (namely a river to be treated), and extracting the current river system utilized by the artificial canal engineering.

According to the artificial canal engineering line position, a research area is defined, and vector river data of the research area are downloaded in a geospatial data cloud mode and the like.

And identifying and extracting vector data of the current main river channel and the first-stage tributaries thereof utilized by the artificial canal engineering in the ArcGIS according to the line position of the artificial canal engineering and the vector river data.

The intersection point of the current main river channel and the primary branch thereof, namely the 'branch river mouth' where the primary branch is converged into the current main river channel, can be identified and extracted through the data management-element inflection point turning tool of the ArcGIS.

And B, carrying out canal engineering construction and river current situation investigation.

Based on canal engineering, preliminary setting and the like, canal engineering construction schemes are investigated, including line position, channel dimensions (channel length, width, depth, bottom elevation and cross section design), step junction operation modes (normal water storage level, incoming flow and downflow) and the like.

The current situation investigation and monitoring are carried out on current situation main river channels and first-stage tributaries thereof which are utilized by canal engineering, the current situation of hydrodynamic force such as river channel topography, river flow, water level and the like, the current situation of water quality such as inorganic nitrogen, inorganic phosphorus, total nitrogen, total phosphorus, dissolved oxygen, chlorophyll a and the like, the current situation of aquatic ecology such as phytoplankton, zooplankton, benthos, fish resources, fish 'three fields' and the like, remote sensing images (vegetation coverage conditions), the number and types of inhabitation of river channel birds, investigation of the distribution conditions of sensitive targets of river environment, including drinking water source sites, fish spawning sites and the like.

And C, carrying out space analysis on canal engineering and current river vector data.

Based on canal engineering line position and current river vector data, space superposition analysis is carried out in ArcGIS, and a river segment needing to be cut and straightened to a current main river channel is identified and extracted.

And calculating the area of each cut straight river reach and the bending coefficient of the river reach. The curve coefficient of the river reach is the ratio of the length of the river curve from the starting point to the ending point of the straight cut to the straight distance from the starting point to the ending point.

And D, establishing a mathematical model of the water power-water environment of the canal engineering, and carrying out simulation analysis of the water power-water environment of the canal engineering after construction.

And according to the current situation of the main river channel and the first-stage tributary topography, water level and flow data thereof, a MIKE 21 model is adopted to establish a current situation river two-dimensional hydrodynamic model before canal engineering construction, and the hydrodynamic model is calibrated and verified.

Based on the verified hydrodynamic model and data such as inorganic nitrogen, inorganic phosphorus, total nitrogen, total phosphorus, dissolved oxygen, chlorophyll a, phytoplankton production, zooplankton production and the like, a river water environment model is built by adopting a MIKE 21 eutrophication module, and the water environment model is calibrated and verified.

Based on the verified river two-dimensional hydrodynamic force-water environment mathematical model, the river hydrodynamic force field and the water environment field after engineering construction are obtained through simulation according to initial edge value conditions such as canal engineering line position, canal dimensions (canal length, width, depth, bottom elevation and cross section design), step junction operation mode (normal water storage level, incoming flow rate and downflow rate), incoming water quality and the like, wherein the river hydrodynamic force field and the water environment field comprise flow velocity, water depth, total phosphorus, total nitrogen, potassium permanganate index, chlorophyll a and transparency, and the water body exchange period of a cutting straight section and the diversion ratio of the cutting straight section to a main river channel.

And calculating and obtaining the river eutrophication level TLI after the canal engineering construction according to chlorophyll a, total phosphorus, total nitrogen, transparency and permanganate index after the canal engineering construction obtained through simulation.

And E, providing a river ecological conservation area along the canal engineering.

The ecological conservation area is currently defined in a certain area on land, and the ecological protection and restoration purposes are realized by reducing human activities and adopting a series of ecological protection and restoration measures.

The embodiment of the invention provides a method for setting an aquatic ecological conservation area by selecting a proper bent section from an original river channel bending straight section after artificial canal development, namely, specific and proper ecological protection and restoration measures are adopted in the selected bent straight section to conserve aquatic resources, the self-regulation and restoration functions of a river ecosystem are brought into play, the ecological functions and biodiversity of the canal ecosystem are improved, the ecological protection and the cooperative development of the shipping functions are ensured as an important ecological barrier for the shipping development of the canal engineering.

And F, setting area screening in the canal ecological conservation area.

For all the cut straight river reach, the proper cut straight river reach is screened out according to the following conditions to set ecological conservation areas:

(1) Has certain water depth, and can be larger than 0.3m;

(2) The water exchange period is not too large, and is preferably less than 3 days;

(3) Has a certain area, can be more than 1 ten thousand m ² ；

And G, constructing an evaluation index system of the canal ecological conservation area.

(1) Evaluation index system table for ecological conservation area

According to the current ecological environment investigation, space analysis and mathematical simulation analysis of the step B, C, D, 20 indexes such as the area (A), the river reach bending coefficient (S), the flow rate (V), the water depth (H), the water exchange period (T), the split ratio (Q) between the ecological self-supporting regions and the main river channel, the eutrophication level (TLI), the distribution condition (WS) of drinking water sources, the vegetation coverage condition (NDVI), the number of Birds (BN), the bird diversity (BH), the Phytoplankton Density (PD), the phytoplankton diversity (PH), the Zooplankton Biomass (ZB), the zooplankton diversity (ZH), the zooplankton biomass (BB), the zoobenthos diversity (BH), the number of Fishes (FN), the fish diversity (FH), the spawning site distribution condition (SA) and the like are obtained.

(2) Evaluation index assignment for ecological conservation area

Of the above 20 ecological conservation area evaluation indexes, the area (a) and the river reach bending coefficient (S) can be obtained through space analysis calculation, the flow velocity (V), the water depth (H), the water exchange period (T), the split ratio (Q) with the main river channel, and the eutrophication level (TLI) can be obtained through digital-analog calculation, the distribution condition (WS) of the drinking water source, the distribution condition (SA) of the spawning ground can be obtained through current investigation, the vegetation cover condition (NDVI) can be obtained through remote sensing image calculation, the Bird Number (BN), the bird diversity (BH), the Phytoplankton Density (PD), the phytoplankton diversity (PH), the Zooplankton Biomass (ZB), the zooplankton diversity (ZH), the Benthonic Biomass (BB), the benthonic diversity (BH), the Fish Number (FN), and the fish diversity (FH) can be obtained through current investigation and calculation, and the diversity index formula is adopted.

For evaluating the ecological conservation area, carrying out normalization treatment on the 20 evaluation indexes, wherein the area (A), the river reach bending coefficient (S), the water depth (H), the water body exchange period (T), the eutrophication level (TLI), the vegetation cover condition (NDVI), the Bird Number (BN), the bird diversity (BH), the phytoplankton diversity (PH), the Zooplankton Biomass (ZB), the zooplankton diversity (ZH), the Benthonic Biomass (BB), the benthonic diversity (BH), the Fish Number (FN), the fish diversity (FH) and the like are subjected to normalization treatment; performing inverse normalization treatment on the flow velocity (V), the diversion ratio (Q) with the main river channel, the Phytoplankton Density (PD) and the like; the distribution condition (WS) of the drinking water source and the distribution condition (SA) of the spawning site are not normalized, and when the ecological conservation area relates to the drinking water source or the spawning site, the index takes the value of 1, otherwise, the index takes the value of 0.

(3) Index standardization method

In order to avoid the influence of index magnitude and dimension difference on the evaluation result, firstly, the statistical value of each evaluation index is standardized, and the method comprises two types of positive normalization and negative normalization. The larger the statistical index of the normal normalization method is, the larger the index value after normalization is, and the following formula is shown: Wherein (1)>For index value, & lt + & gt>For normalized index value, ++>Is the index minimum value->Is the index maximum.

The larger the statistical index of the anti-normalization method is, the smaller the index value after normalization is, as shown in the following formula, and the meaning of each parameter in the formula is the same.

；

The specific standardized method of the evaluation index can refer to the first table, namely the evaluation index table of the ecological conservation area.

List one

Sequence number	Evaluation index	Unit (B)	Data source	Normalization method
					1	Area (A)	Ten thousand m2	Spatial analysis	Positive and return to normal
2	River reach bending modulus (S)	Dimensionless	Spatial analysis	Positive and return to normal
					3	Flow rate (V)	m/s	Numerical simulation	Anti-return to normal
4	Depth of water (H)	m	Numerical simulation	Positive and return to normal
					5	Water exchange period (T)	Tiantian (Chinese character of 'Tian')	Numerical simulation	Positive and return to normal
6	Split ratio with main river channel (Q)	Dimensionless	Numerical simulation	Anti-return to normal
					7	Eutrophication level (TLI)	Dimensionless	Numerical simulation	Positive and return to normal
8	Distribution of drinking Water Source (WS)	——	Investigation of the present situation	——
					9	Vegetation coverage situation (NDVI)	Dimensionless	Remote sensing image interpretation	Positive and return to normal
10	Bird Number (BN)	Only	Current situation investigation and analysis	Positive and return to normal
					11	Bird diversity (BH)	Dimensionless	Current status quoInvestigation analysis	Positive and return to normal
12	Phytoplankton Density (PD)	X 106/liter	Current situation investigation and analysis	Anti-return to normal
					13	Phytoplankton diversity (PH)	Dimensionless	Current situation investigation and analysis	Positive and return to normal
14	Zooplankton Biomass (ZB)	mg/L	Current situation investigation and analysis	Positive and return to normal
					15	Zooplankton diversity (ZH)	Dimensionless	Current situation investigation and analysis	Positive and return to normal
16	Benthonic animal biomass (BB)	g/m2	Current situation investigation and analysis	Positive and return to normal
					17	Benthonic animal diversity (BH)	Dimensionless	Current situation investigation and analysis	Positive and return to normal
18	Fish quantity (FN)	Tail of tail	Current situation investigation and analysis	Positive and return to normal
					19	Fish diversity (FH)	Dimensionless	Current situation investigation and analysis	Positive and return to normal
20	Distribution of spawning Sites (SA)	——	Current situation investigation and analysis	——

And step H, constructing an ecological conservation area of the canal.

The dominant ecological function targets of canal ecological conservation area construction are set as three categories of 'water quality maintenance and guarantee, fish habitat construction and bird habitat construction', the ecological conservation area which is designed by the function targets to be developed is screened aiming at each category of function targets, and corresponding construction measures are provided.

(1) Water quality maintenance and guarantee

The ecological function target mainly considers 8 indexes of the area (A) of an ecological conservation area, the bending coefficient (S) of a river reach, the flow velocity (V), the water depth (H), the water exchange period (T), the split ratio (Q) of a main river channel, the eutrophication level (TLI) and the distribution condition (WS) of a drinking water source, and adopts an Analytic Hierarchy Process (AHP) to determine the weight of each evaluation index ，/>，/>。

The water quality sensitivity index is obtained by the following calculation，/>For->The ecological conservation area is larger than 0.5, and the design of a water quality maintenance and guarantee function target is focused, for example, measures such as constructed wetland construction, aeration plug flow, water system communication, plant community restoration and the like are adopted to enhance hydrodynamic force and purify water quality.

(2) Construction of fish habitat

The ecological function target mainly considers 12 indexes of the area (A), the flow velocity (V), the water depth (H), the Phytoplankton Density (PD), the phytoplankton diversity (PH), the Zooplankton Biomass (ZB), the zooplankton diversity (ZH), the Benthonic Biomass (BB), the benthonic diversity (BH), the fish quantity (FN), the fish diversity (FH) and the spawning site distribution (SA) of an ecological conservation zone, and adopts a Analytic Hierarchy Process (AHP) to determine the weight of each evaluation index，/>，/>。

The water ecology sensitivity index is obtained by the following calculation，/>For->The ecological conservation area is larger than 0.5, and the design of functional targets for constructing the fish habitat is focused, such as setting artificial fish nests and artificial fish reefs, communicating local water systems, constructing ecological block dams and ecological structures, and shaping micro-landform structures formed by multiple matrixes such as sand, gravel and the like.

For the ecological conservation area containing the tributary river mouth, the modeling of ecological spur dams, ecological structures and other micro-relief structures can be developed in an important way.

(3) Bird habitat construction

The ecological function target mainly considers 5 indexes of the area (A), the water depth (H), the vegetation coverage condition (NDVI), the number of Birds (BN) and the diversity of Birds (BH) of an ecological conservation area, and adopts an Analytic Hierarchy Process (AHP) to determine each evaluation fingerTarget weight ，/>，/>。

Bird susceptibility index is calculated as follows，/>For->The ecological conservation area is larger than 0.5, the design of the functional target for constructing the bird habitat is focused, and the design of the bird ecological island, the plant community restoration measures and the like are adopted.

Referring to fig. 2 in combination, an ecological protection policy customizing apparatus 110 based on artificial canal development according to an embodiment of the present invention includes:

an acquisition module 1101, configured to acquire canal engineering construction information and current channel information of a river to be treated;

a calculating module 1102, configured to determine a plurality of cut straight segments based on the canal engineering construction information and the current channel information; constructing an environment simulation model of the river to be processed based on the canal engineering construction information, the river current information and the plurality of cut straight river segments; determining an ecological conservation area from the plurality of cut straight river segments, and determining an ecological evaluation index corresponding to the ecological conservation area based on the environment simulation model; according to the ecological evaluation index, calculating to obtain an ecological sensitivity index of a preset ecological function target;

And a policy module 1103 for determining an ecological protection policy of the ecological conservation area according to the ecological sensitivity index.

It should be noted that, the implementation principle of the ecological protection policy customization device 110 based on the artificial canal development may refer to the implementation principle of the ecological protection policy customization method based on the artificial canal development, and will not be described herein. It should be understood that the division of the modules of the above apparatus is merely a division of a logic function, and may be fully or partially integrated into a physical entity or may be physically separated when actually implemented.

And these modules may all be implemented in software in the form of calls by the processing element; or can be realized in hardware; the method can also be realized in a form of calling software by a processing element, and the method can be realized in a form of hardware by a part of modules.

For example, the modules above may be one or more integrated circuits configured to implement the methods above, such as: one or more specific integrated circuits (application specific integrated circuit, ASIC), or one or more microprocessors (digital signal processor, DSP), or one or more field programmable gate arrays (field programmable gate array, FPGA), or the like.

For another example, when a module above is implemented in the form of a processing element scheduler code, the processing element may be a general purpose processor, such as a central processing unit (centralprocessing unit, CPU) or other processor that may invoke the program code.

For another example, the modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).

The embodiment of the invention provides a computer device 100, where the computer device 100 includes a processor and a nonvolatile memory storing computer instructions, and when the computer instructions are executed by the processor, the computer device 100 executes the ecological protection policy customizing apparatus 110 based on artificial canal development.

As shown in fig. 3, fig. 3 is a block diagram of a computer device 100 according to an embodiment of the present invention.

The computer device 100 includes an ecological protection policy customizing means 110 based on manual canal development, a memory 111, a processor 112 and a communication unit 113.

For data transmission or interaction, the memory 111, the processor 112 and the communication unit 113 are electrically connected to each other directly or indirectly.

For example, the elements may be electrically connected to each other via one or more communication buses or signal lines.

The ecological protection policy customizing apparatus 110 based on artificial canal development includes at least one software function module that may be stored in the memory 111 in the form of software or firmware (firmware) or cured in an Operating System (OS) of the computer device 100.

The processor 112 is configured to execute the ecological protection policy customizing apparatus 110 based on the artificial canal development stored in the memory 111, for example, a software function module, a computer program, and the like included in the ecological protection policy customizing apparatus 110 based on the artificial canal development.

The embodiment of the invention provides a readable storage medium, which comprises a computer program, wherein the computer program controls computer equipment where the readable storage medium is located to execute the ecological protection policy customizing method based on artificial canal development when running.

The foregoing description, for purpose of explanation, has been presented with reference to particular embodiments.

However, the illustrative discussions above are not intended to be exhaustive or to limit the disclosure to the precise forms disclosed.

Many modifications and variations are possible in light of the above teaching.

The embodiments were chosen and described in order to best explain the principles of the disclosure and its practical application, to thereby enable others skilled in the art to best utilize the disclosure and various embodiments with various modifications as are suited to the particular use contemplated.

Many modifications and variations are possible in light of the above teaching.

Claims

1. An ecological protection strategy customizing method based on artificial canal development is characterized by comprising the following steps:

2. The method of claim 1, wherein the determining a plurality of cut straight segments based on the canal engineering construction information and the channel current information comprises:

determining current river vector data from the river current information;

3. The method of claim 1, wherein constructing the environmental simulation model of the river to be treated based on the canal engineering construction information, the river current information, and the plurality of cut straight segments comprises:

4. The method of claim 1, wherein the determining an ecological conservation zone from the plurality of cut straight stretches and determining an ecological assessment index corresponding to the ecological conservation zone based on the environmental simulation model comprises:

5. The method of claim 4, wherein the determining, based on the environmental simulation model, an ecological assessment indicator corresponding to the ecological conservation zone comprises:

6. The method according to claim 1, wherein the calculating the ecological sensitivity index of the preset ecological function target according to the ecological evaluation index comprises:

under the condition that the preset ecological function target is water quality maintenance and guarantee, the ecological evaluation index comprises a water quality sensitivity index, wherein the water quality sensitivity index comprises an ecological conservation area, a river reach bending coefficient, a flow rate, a water depth, a water body exchange period, a split ratio with a main river channel, an eutrophication level and a distribution condition of a drinking water source;

By the formula:calculating to obtain a water quality sensitivity index, wherein +_>Index of sensitivity to water quality>Is used as a water quality sensitivity index, and the ∈10 is prepared from>The weight of the water quality sensitivity index is determined based on an analytic hierarchy process;

at the preset ecological function target isUnder the condition of fish habitat construction, the ecological evaluation indexes comprise water ecological sensitivity indexes, wherein the water ecological sensitivity indexes comprise the area, the flow rate, the water depth, the phytoplankton density, the phytoplankton diversity, the zooplankton biomass, the zooplankton diversity, the benthonic biomass, the benthonic animal diversity, the fish quantity, the fish diversity and the spawning site distribution condition of an ecological conservation area; by the formulaCalculating to obtain an aquatic attitude sensitivity index, wherein +.>Is water ecology sensitivity index->Is an index of water ecology sensitivity>A weight for the water ecology sensitivity index, the weight determined based on an analytic hierarchy process;

under the condition that the preset ecological function target is bird habitat creation, the ecological evaluation index comprises bird sensitivity indexes, wherein the bird sensitivity indexes comprise the area of an ecological conservation area, the water depth, the vegetation coverage condition, the number of birds and the diversity of birds; by the formula Calculating to obtain bird sensitivity index, wherein ∈>For avian susceptibility index, < >>Is an index of susceptibility to birds, meta-L>For the birdsThe weight of the sensitivity index, which is determined based on the analytic hierarchy process.

7. The method of claim 6, wherein the determining an ecological protection strategy for the ecological conservation zone based on the ecological susceptibility index comprises:

8. Ecological protection policy customizing device based on artifical canal development, characterized by comprising:

9. A computer device comprising a processor and a non-volatile memory storing computer instructions that, when executed by the processor, perform the artificial canal development-based ecological protection policy customization method of any of claims 1-7.

10. A readable storage medium, characterized in that the readable storage medium comprises a computer program, and the computer program controls a computer device where the readable storage medium is located to execute the ecological protection policy customizing method based on artificial canal development according to any one of claims 1-7 when running.