Ecological restoration partition classification system and method, terminal and storage medium

Abstract

The invention discloses an ecological restoration partition classification system and method, a terminal and a storage medium, and the system comprises an importance evaluation module, a comprehensive damage evaluation module, a service evaluation module and a partition module. The partitioning module is connected with the importance evaluation module, the comprehensive damage evaluation module and the service evaluation module; corresponding evaluation results are obtained through the importance evaluation module, the comprehensive damage evaluation module and the service evaluation module, all the evaluation results are processed through the partitioning module, and a final evaluation result is obtained and partitioned. According to the method, the multiple evaluation results are combined for corresponding partitioning, so that the partitioned results are more accurate, and ecological restoration can be better realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of data processing, and particularly relates to an ecological restoration zoning classification system and method, a terminal and a computer readable storage medium. BACKGROUND

[0002] The social transformation of ecological space by urban development will cause damage to the ecosystem and erosion of ecological space, so corresponding ecological restoration is needed. In ecological restoration, different restoration methods are needed for different situations, so ecological restoration zoning, as an important prerequisite for spatial ecological restoration, plays an important role in ecological restoration implementation.

[0003] However, the current zoning method focuses on natural ecological background evaluation, lacks spatial coupling analysis of ecosystem service flow and social demand, and has structural defects in element integration level, which will lead to inaccurate zoning and affect subsequent ecological restoration.

[0004] Therefore, the prior art still needs to be improved and developed. SUMMARY

[0005] The main purpose of the present application is to provide an ecological restoration zoning classification system and method, a terminal and a computer readable storage medium, which aims to solve the problem that the current zoning method focuses on natural ecological background evaluation, lacks spatial coupling analysis of ecosystem service flow and social demand, and has structural defects in element integration level, which will lead to inaccurate zoning and affect subsequent ecological restoration.

[0006] To achieve the above purpose, the present application provides an ecological restoration zoning classification system, which comprises an importance evaluation module, a comprehensive damage evaluation module, a service evaluation module and a zoning module, wherein the zoning module is connected with the importance evaluation module, the comprehensive damage evaluation module and the service evaluation module respectively.

[0007] The importance evaluation module is used to obtain the environmental information of the target area, and according to the environmental information, the core habitat space is identified by using the comprehensive evaluation model of ecosystem service and trade-off, and according to the core habitat space and the pre-set index elements, the importance evaluation result of each grid of the target area is obtained.

[0008] The comprehensive damage evaluation module is used to obtain the ecological data of the target area, generate the data of each grid of the target area according to the specification requirements of the target area, and normalize and weight the data to obtain the normalized score of each grid, and obtain the corresponding comprehensive damage evaluation result according to the normalized score of each grid.

[0009] The service evaluation module is configured to acquire social information of the target area, calculate service values of each grid according to preset values of social service impact factors, and obtain service evaluation results of each grid according to all the service values.

[0010] The partition module is configured to acquire the importance evaluation results, the comprehensive damage evaluation results and the service evaluation results of each grid, calculate the importance evaluation results, the comprehensive damage evaluation results and the service evaluation results according to preset evaluation weights, obtain final evaluation results, and partition the target area according to the final evaluation results.

[0011] Optionally, the importance evaluation module comprises a habitat quality index calculation unit, a selection unit and an importance evaluation result generation unit.

[0012] The habitat quality index calculation unit is configured to acquire environmental information of the target area, import the environmental information into a comprehensive evaluation model of ecosystem services and trade-offs, and obtain habitat quality indexes of each grid according to threat factor setting parameters.

[0013] The selection unit is configured to select corresponding grids as core habitat spaces according to all the habitat quality indexes.

[0014] The importance evaluation result generation unit is configured to acquire preset index elements, evaluate each grid according to the core habitat spaces and the preset index elements, and obtain importance evaluation results of each grid.

[0015] Optionally, the service evaluation module comprises a social service impact factor identification unit, a service value calculation unit and a service evaluation result generation unit.

[0016] The social service impact factor identification unit is configured to acquire social information of the target area and identify current social service impact factors from the social information.

[0017] The service value calculation unit is configured to determine values of the current social service impact factors according to preset values of the social service impact factors, and calculate service values of each grid correspondingly.

[0018] The service evaluation result generation unit is configured to obtain a social service value evaluation spatial distribution map according to all the service values, and obtain service evaluation results of each grid according to the social service value evaluation spatial distribution map.

[0019] Optionally, the partition module comprises a data acquisition unit, a final evaluation result generation unit and a partition unit.

[0020] The data acquisition unit is configured to acquire the importance evaluation result, the comprehensive damage evaluation result, and the service evaluation result of each grid.

[0021] The final evaluation result generation unit is configured to acquire a preset evaluation weight, and sum the importance evaluation result, the comprehensive damage evaluation result, and the service evaluation result of each grid by using a target platform according to the preset evaluation weight, to obtain a final evaluation result of each grid.

[0022] The partition unit is configured to partition the target region according to the final evaluation result of each grid.

[0023] In addition, to achieve the above object, the present application further provides an ecological restoration partitioning and classifying method, wherein the ecological restoration partitioning and classifying method comprises:

[0024] Acquiring environmental information of a target region, identifying a core habitat space by using a comprehensive evaluation model of ecosystem services and trade-offs according to the environmental information, and obtaining an importance evaluation result of each grid of the target region according to the core habitat space and a preset index element;

[0025] Acquiring ecological data of the target region, generating data of each grid of the target region according to a specification requirement of the target region, and performing normalization and weighting to obtain a normalized score of each grid, and obtaining a corresponding comprehensive damage evaluation result according to the normalized score of each grid;

[0026] Acquiring social information of the target region, calculating a service value of each grid according to a preset assignment of a social service influence factor, and obtaining a service evaluation result of each grid according to all the service values;

[0027] According to a preset evaluation weight, the importance evaluation result, the comprehensive damage evaluation result, and the service evaluation result are calculated to obtain a final evaluation result, and the target region is partitioned according to the final evaluation result.

[0028] Optionally, the acquiring of the environmental information of the target region, the identifying of the core habitat space by using the comprehensive evaluation model of ecosystem services and trade-offs according to the environmental information, and the obtaining of the importance evaluation result of each grid of the target region according to the core habitat space and the preset index element further comprise:

[0029] Acquiring preset unit setting information;

[0030] According to the preset unit setting information, the target region is divided into a plurality of grids.

[0031] Optionally, the social information of the target area is acquired, the service value of each grid is calculated according to the preset assignment of the social service influence factor, and the service evaluation result of each grid is obtained according to all the service values, and the method further comprises the following steps:

[0032] Seven kinds of related social service influence factors are acquired, and the assignment of each related social service influence factor is set;

[0033] In the target platform, a plurality of buffer zones of each related social service influence factor are established, and each buffer zone of each related social service influence factor is re-assigned to obtain the assignment of the social service influence factor.

[0034] Optionally, the importance evaluation result, the comprehensive damage evaluation result and the service evaluation result are calculated according to the preset evaluation weight to obtain a final evaluation result, and the target area is divided according to the final evaluation result, and the method further comprises the following steps:

[0035] The importance evaluation result, the comprehensive damage evaluation result and the service evaluation result are set as indexes;

[0036] The indexes of the importance evaluation result, the comprehensive damage evaluation result and the service evaluation result are quantified according to the nine-degree method to obtain a quantified score of each two indexes;

[0037] The index weight of each index is calculated according to the quantified score of each two indexes, and a maximum characteristic and a consistency test formula are calculated, when the maximum characteristic meets the consistency requirement, the corresponding evaluation weight is set according to the index weight of each index.

[0038] In addition, in order to achieve the above-mentioned purpose, the present application also provides a terminal, wherein the terminal comprises a memory, a processor and an ecological restoration partition classification program stored in the memory and executable on the processor, and the processor executes the ecological restoration partition classification program to realize the steps of the ecological restoration partition classification method.

[0039] In addition, in order to achieve the above-mentioned purpose, the present application also provides a computer readable storage medium, wherein the computer readable storage medium stores an ecological restoration partition classification program, and the processor executes the ecological restoration partition classification program to realize the steps of the ecological restoration partition classification method.

[0040] In this invention, the ecological restoration zoning classification system includes an importance assessment module, a comprehensive damage assessment module, a service assessment module, and a zoning module. The zoning module is connected to the importance assessment module, the comprehensive damage assessment module, and the service assessment module, respectively. The importance assessment module is used to acquire environmental information of the target area, identify core habitat spaces using a comprehensive assessment model of ecosystem services and trade-offs based on the environmental information, and obtain the importance assessment result of each grid in the target area based on the core habitat spaces and pre-set indicator elements. The comprehensive damage assessment module is used to acquire ecological data of the target area, generate data for each grid in the target area according to the standard requirements of the target area, and... Normalization and weighting are performed to obtain a normalized score for each grid cell, and the corresponding comprehensive damage assessment result is obtained based on the normalized score of each grid cell. The service assessment module is used to acquire social information of the target area, calculate the service value of each grid cell according to the pre-set social service impact factor, and obtain the service assessment result of each grid cell based on all the service values. The partitioning module is used to acquire the importance assessment result, comprehensive damage assessment result, and service assessment result of each grid cell, calculate the importance assessment result, comprehensive damage assessment result, and service assessment result according to the pre-set assessment weights, obtain the final assessment result, and partition the target area according to the final assessment result. This invention, when partitioning, does not only evaluate a single ecological function, but also constructs an assessment model of "importance assessment - comprehensive damage assessment - social service value assessment", thereby comprehensively considering ecological protection and utilization potential. Furthermore, it proposes an assessment method for identifying the social benefits of ecological space and the value of ecosystem services, thereby constructing assessment indicators and adopting corresponding calculation methods, so that the partitioning results obtained based on these indicators can achieve accurate partitioning and better realize ecological restoration. Attached Figure Description

[0041] Figure 1 This is a structural diagram of a preferred embodiment of the ecological restoration zoning and classification system of the present invention;

[0042] Figure 2 This is a schematic diagram of the system operation in the ecological restoration zoning and classification system of the present invention;

[0043] Figure 3 This is a schematic diagram of the hierarchical structure model in the ecological restoration zoning and classification system of this invention;

[0044] Figure 4 This is a schematic diagram of the nine-degree method in the ecological restoration zoning classification system of this invention;

[0045] Figure 5 This is a flowchart of a preferred embodiment of the ecological restoration zoning and classification method of the present invention;

[0046] Figure 6 Structure diagram of a preferred embodiment of the terminal of the present application. DETAILED DESCRIPTION

[0047] In order to make the objectives, technical solutions and advantages of the present application clearer and more apparent, the present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0048] The social transformation of ecological space by urban development will cause damage to the ecosystem and erosion of ecological space, so corresponding ecological restoration is needed. In ecological restoration, different restoration methods need to be used for different situations, so the ecological restoration partitioning as an important prerequisite for spatial ecological restoration plays an important role in the implementation of ecological restoration. However, the current partitioning method focuses on the evaluation of the natural ecological background, lacks spatial coupling analysis of ecosystem service flow and social demand, and has structural defects in the element integration level, which will lead to inaccurate partitioning and affect the subsequent ecological restoration.

[0049] In view of one or more of the above problems, the ecological restoration partitioning classification system provided by the present application comprises an importance evaluation module, a comprehensive damage evaluation module, a service evaluation module and a partitioning module, the partitioning module is connected with the importance evaluation module, the comprehensive damage evaluation module and the service evaluation module respectively: the importance evaluation module is used to obtain the environmental information of a target area, according to the environmental information, a core habitat space is identified by using a comprehensive evaluation model of ecosystem services and trade-offs, and according to the core habitat space and pre-set index elements, an importance evaluation result of each grid of the target area is obtained; the comprehensive damage evaluation module is used to obtain ecological data of the target area, according to the specification requirements of the target area, data of each grid of the target area is generated, and normalization and weighting are performed to obtain a normalized score of each grid, and a corresponding comprehensive damage evaluation result is obtained according to the normalized score of each grid; the service evaluation module is used to obtain social information of the target area, according to the assignment of pre-set social service influence factors, the service value of each grid is calculated, and the service evaluation result of each grid is obtained according to all the service values; the partitioning module is used to obtain the importance evaluation result, the comprehensive damage evaluation result and the service evaluation result of each grid, according to the pre-set evaluation weight, the importance evaluation result, the comprehensive damage evaluation result and the service evaluation result are calculated to obtain a final evaluation result, and the target area is partitioned according to the final evaluation result.

[0050] The ecological restoration partitioning classification system provided by the preferred embodiment of the present application, like Figure 1As shown, the ecological restoration zoning classification system comprises an importance evaluation module 11, a comprehensive damage evaluation module 12, a service evaluation module 13 and a zoning module 14, and the zoning module 14 is connected with the importance evaluation module 11, the comprehensive damage evaluation module 12 and the service evaluation module 13 respectively:

[0051] The importance evaluation module 11 is used to obtain environmental information of a target area, according to the environmental information, a core habitat space is identified by using a comprehensive evaluation model of ecosystem services and trade-offs, and according to the core habitat space and pre-set index elements, an importance evaluation result of each grid of the target area is obtained;

[0052] The comprehensive damage evaluation module 12 is used to obtain ecological data of the target area, to generate data of each grid of the target area according to specification requirements of the target area, to normalize and weight the data, to obtain a normalized score of each grid, and to obtain a corresponding comprehensive damage evaluation result according to the normalized score of each grid;

[0053] The service evaluation module 13 is used to obtain social information of the target area, to calculate a service value of each grid according to pre-set assignment of a social service impact factor, and to obtain a service evaluation result of each grid according to all the service values;

[0054] The zoning module 14 is used to obtain the importance evaluation result, the comprehensive damage evaluation result and the service evaluation result of each grid, to calculate the importance evaluation result, the comprehensive damage evaluation result and the service evaluation result according to pre-set evaluation weights, to obtain a final evaluation result, and to zone the target area according to the final evaluation result.

[0055] Specifically, as Figure 2As shown, in this invention, the importance assessment module 11, based on the identification of core habitat ranges, combines ecological security patterns, ecological corridor levels, ecological protection red lines, nature reserves, and first-level water source protection areas, etc., to qualitatively assign values ​​to different attribute spaces according to their ecological protection and control intensity. Then, a weighted overlay method is used to derive the ecological protection importance index per unit space, and finally, clustering is performed to classify the importance level range. The comprehensive damage assessment module 12, according to the regulatory requirements of the target area, analyzes and evaluates the degree of ecosystem degradation from the perspectives of ecosystem pattern, quality, and service functions. Based on the calculation results of ecosystem pattern, quality, and service functions, a comprehensive damage assessment index is derived through a normalized weighted accumulation method, and finally, clustering is performed to classify the comprehensive damage level range. The social service value evaluation module identifies key social impact service sources based on three dimensions: landscape, culture, and pedestrian flow. These sources include factors such as suburban parks, urban parks, historical sites, rail stations, bus stops, and residential areas. The module assigns values ​​to these key impact service factors from high to low according to their demand, thus defining the scope of impact. It establishes a social service impact assessment centered on these key impact service factors. The higher the value of a service factor, the greater the demand for social services. The closer a service factor is to a service factor, the higher its social service value. Ultimately, this results in a zoning and grading system for the service value of ecological spaces.

[0056] Based on the above importance assessment results, comprehensive damage assessment results, and service assessment results, the analytic hierarchy process (AHP) is adopted, with different types and levels of classification results as evaluation factors. The weight values ​​are calculated based on the nine-scale, and the final evaluation results are calculated. Combined with a comprehensive analysis of the direction of ecological space protection interests, the implementation zones for ecological protection and restoration are finally delineated, and guidelines for ecological restoration measures are proposed.

[0057] Furthermore, the importance evaluation module 11 includes a habitat quality index calculation unit, a selection unit, and an importance evaluation result generation unit;

[0058] The habitat quality index calculation unit is used to acquire environmental information of the target area, import the environmental information into the integrated assessment model of ecosystem services and trade-offs, and set parameters according to threat factors to obtain the habitat quality index of each grid.

[0059] The selection unit is used to select the corresponding grid as the core habitat space based on all the habitat quality indices.

[0060] The importance assessment result generation unit is used to obtain pre-set indicator elements, evaluate each grid based on the core habitat space and pre-set indicator elements, and obtain the importance assessment result of each grid.

[0061] Specifically, before the ecological restoration zoning classification system processing is performed, preset unit setting information is acquired; and the target region is divided into a plurality of grids according to the preset unit setting information. That is, in order to facilitate unified calculation of data, first, the spatial vector of the study area is divided into evaluation units of the same size, that is, a plurality of grids, and the corresponding size is set through preset unit setting information. In an embodiment of the present application, the size of the evaluation unit is set to 10 m x 10 m. Then, when data preprocessing is performed, the basic data such as the ecological control range data and the terrain data are converted into raster data through the ArcGIS conversion tool, and all the raster data are converted into a unified vector evaluation unit grid network through a statistical tool, facilitating subsequent calculation.

[0062] For the importance evaluation module, which is used to evaluate the importance of the ecological space, based on the identification of the core habitat, combined with the overall planning of the space where the study area is located, according to the requirement of the ecological space control element, through the ArcGIS multi-factor space overlay processing method, the ecological space importance analysis is derived, that is, the final evaluation is output.

[0063] Among them, the importance evaluation module first acquires the environmental information of the target region through the habitat quality index calculation unit, imports the environmental information into the integrated valuation of ecosystem services and trade-offs (InVEST) model, and obtains the habitat quality index of each grid according to the threat factor setting parameter. The integrated valuation of ecosystem services and trade-offs (InVEST) model is used to evaluate the ecosystem service function and its economic value, and is a model system supporting ecological system management and decision-making. The environmental information includes land use and cover data. In the present application, the influence distance, influence weight and sensitivity of land class to threat source and other parameters of the threat source are set correspondingly, wherein the threat factor is the threat source. The influence distance and weight of the threat factor are shown in Table 1; the habitat suitability and its sensitivity to different threat sources, that is, the sensitivity of land class to threat source and other parameters are shown in Table 2.

[0064] Table 1: Influence distance and weight of threat factor

[0065] Land use type Maximum impact distance / km Weight Spatial decay Transportation 7 0.6 Linear City 8 0.8 Exponential Industry 8 0.9 Exponential Water conservancy facilities 3 0.2 Exponential Farmland 1 0.2 Linear Agricultural facilities 2 0.3 Exponential

[0066] Table 2: Habitat suitability and its sensitivity to different threat sources

[0067]

[0068] The habitat quality index between 0 and 1 can be evaluated by the InVEST model, and the closer to 1, the better the habitat quality. The calculation formula of the habitat quality index is as follows:

[0069]

[0070] wherein Q xj represents the habitat quality index of grid x in land use type j; H j represents the habitat suitability of land use type j; z represents a normalized constant; K is a half-saturation parameter (taking a default value of 0.5); D z xj represents the habitat degradation index of land use type j in grid x.

[0071] Then, the selection unit in the importance evaluation module selects the corresponding grid as the core habitat space according to all the habitat quality indexes. That is, in the present application, the habitat quality index close to 1 is selected as the core habitat space based on the calculation result.

[0072] The importance evaluation result generation unit obtains the pre-set index elements, evaluates each grid according to the core habitat space and the pre-set index elements, and obtains the importance evaluation result of each grid. The pre-set index elements include the ecological space rigid control constraint elements, i.e. the ecological protection red line, the first-class water source protection area, the natural protection land and the important ecological corridor unit, and the elastic control constraint elements, i.e. the general ecological corridor unit range and the distribution of key wild animals and plants. According to the core habitat space and the pre-set index elements, the ecological space control elements shown in Table 3 can be obtained. Through the ecological space control elements, the spatial overlay function of ArcGIS is used to divide the ecological space importance evaluation grades, the rigid control space is classified into the extremely important grade range, the elastic control constraint elements are classified into the important grade range, and other spaces are classified into the general ecological space.

[0073] Table 3: Ecological space control elements

[0074] Index element Index attribute Ecological protection red line Rigid constraint Nature reserve Rigid constraint First-class water source protection area Rigid constraint Core habitat Rigid constraint Important ecological corridor unit Flexible constraint General ecological corridor unit Flexible constraint Key wild animal and plant distribution Flexible constraint

[0075] Further, in the comprehensive damage evaluation module, the ecological data of the target area in the past period of time is adopted to evaluate the current ecological change trend according to the specification requirements of the target area, and the evaluation results of the ecosystem pattern, quality and service are obtained. In an embodiment of the present application, the evaluation results of the ecosystem pattern, quality and service can be obtained by using the series of specifications (HJ 1171, HJ 1172, HJ 1173, HJ 1174 and HJ 1175) of the Technical Specifications for National Ecological Condition Survey and Evaluation, and taking 1 year or more as the time range with data support, to evaluate the current ecological change trend of the research area and derive the evaluation results of the ecosystem pattern, quality and service, i.e. the data of each grid in the target area.

[0076] Then, the evaluation results of the ecosystem pattern, quality and service are normalized to form standard scores, and the specific formula is as follows:

[0077]

[0078] In the formula, X' is the normalized data, X is the original data, i.e. the evaluation results of the ecosystem pattern, quality and service, mean is the mean value of the original data, and std is the standard deviation of the original data.

[0079] Since the ecosystem pattern, quality and service have relatively parallel influence on the ecological damage analysis, the same weight is given to the three based on the normalized data, and the normalized score of each grid is obtained by spatial weighting through ArcGIS. Then, the maximum and minimum values of all scores are obtained, and the score range is obtained according to the maximum and minimum values. The score range is equally divided into four ranges from low to high value, and is divided into four grades of no damage, slight damage, moderate damage and severe damage in turn. The corresponding comprehensive damage evaluation result of each grid is obtained according to the corresponding score.

[0080] Further, the service evaluation module 13 includes a social service impact factor identification unit, a service value calculation unit and a service evaluation result generation unit.

[0081] The social service impact factor identification unit is configured to obtain social information of the target area and identify the current social service impact factor from the social information.

[0082] The service value calculation unit is configured to determine the value of the current social service impact factor according to the pre-set value assignment of the social service impact factor, and calculate the service value of each grid correspondingly.

[0083] The service evaluation result generation unit is configured to obtain a social service value evaluation spatial distribution map according to all the service values, and obtain the service evaluation result of each grid according to the social service value evaluation spatial distribution map.

[0084] Specifically, the service evaluation module evaluates the social service value that can be provided based on the existing landscape conditions and cultural service elements in the study area, in combination with the local corresponding human flow trend, i.e., the subway station, bus stop and residential land, as the evaluation support for the available value of the ecological space. Before the service evaluation module processes the data, the corresponding social service impact factor is set, i.e., 7 types of related social service impact factors are obtained, and the assignment of each related social service impact factor is set. In the target platform, a plurality of buffer zones of each related social service impact factor are established, and each buffer zone of each related social service impact factor is re-assigned to obtain the assignment of the social service impact factor.

[0085] In the present application, the key social service sources are identified in advance, and 7 categories of related social service impact factors in three aspects of natural landscape, cultural resources and human flow trend are obtained by means of urban facility points of interest (POI), government unit data collection, field reconnaissance and other means, including historical cultural resources, country parks, urban parks, large cultural and sports facilities, bus stops, rail stations and residential areas. The assignment of each factor is determined, and the demand for key cultural service factors is identified according to the high and low scores of the assignment scores. Among them, the high demand factor distribution space is assigned a value of 9 points; the medium demand factor distribution space is assigned a value of 5 points; the low demand factor distribution space is assigned a value of 1 point; and the factor distribution space between the two is assigned a value of 7 points and 3 points, respectively.

[0086] After setting the assignment of each related social service impact factor, the "multi-ring buffer" tool in ArcToolbox under the ArcGIS platform is used to establish buffer zones of 300m, 500m and 1000m with a more appropriate walking distance, and the buffer zones are re-assigned by the "reclassification" tool to obtain the assignment of the social service impact factor. Among them, the assignment and weight of the social service value impact factor in the ecological space are shown in Table 4.

[0087] Table 4: Assignment and weight of social service value impact factor of ecological space

[0088]

[0089] After the corresponding social service impact factor is set, the service evaluation module can be realized. In the service evaluation module, the social service impact factor identification unit first obtains the social information of the target area, that is, obtains the information of natural landscape, cultural resources and people flow trend, that is, obtains the specific location and quantity of historical relics resources, country parks, urban parks, large cultural and sports facilities, bus stations, rail stations and residential areas in the target area, and identifies the current social service impact factor from the social information, that is, identifies those social service impact factors in historical relics resources, country parks, urban parks, large cultural and sports facilities, bus stations, rail stations and residential areas. After that, the service value calculation unit determines the value of these social service impact factors according to the pre-set value of the social service impact factor, and calculates the service value of each grid correspondingly. In the calculation, the "raster calculator" tool in the ArcGIS platform is used for superposition to obtain the service value of each grid. The service evaluation result generation unit obtains the social service value evaluation spatial distribution map according to all the service values, obtains the maximum value and the minimum value of the service value of all grids from the social service value evaluation spatial distribution map, and obtains the corresponding range according to the maximum value and the minimum value of the service value. The corresponding range is equally divided into three levels, and is divided into three levels of high value, medium value and low value according to the service value from high to low value. According to the specific value of the service value corresponding to each grid, the service evaluation result of each grid is obtained.

[0090] Further, the partition module 14 includes a data acquisition unit, a final evaluation result generation unit and a partition unit:

[0091] The data acquisition unit is configured to acquire the importance evaluation result, the comprehensive damage evaluation result and the service evaluation result of each grid.

[0092] The final evaluation result generation unit is configured to acquire the pre-set evaluation weight, and sum the importance evaluation result, the comprehensive damage evaluation result and the service evaluation result of each grid by using a target platform according to the pre-set evaluation weight, to obtain the final evaluation result of each grid.

[0093] The partition unit is configured to partition the target area according to the final evaluation result of each grid.

[0094] Specifically, in the zoning module, specifically the "protection-construction" suitability evaluation, the analytic hierarchy process (AHP) is adopted, the evaluation results of the "importance evaluation-comprehensive damage evaluation-social service value evaluation" three dimensions are taken as the evaluation indexes, the "protection-construction" suitability is taken as the target, the indexes are compared with each other, and the weights of the indexes are calculated, so that the "protection-construction" suitability evaluation and assessment system with the weight system is constructed, and the ecological zoning is completed. Figure 3 As shown in the implementation, mainly a hierarchical structure model is established, the system is divided into a target layer, a criterion layer and a scheme layer according to the analytic hierarchy process logic, the target layer is for the "protection-construction" suitability evaluation target, that is, for considering the "protection-construction" suitability evaluation; the criterion layer takes the evaluation results of the "importance evaluation-comprehensive damage evaluation-social service value evaluation" three dimensions as the evaluation indexes, and analyzes according to the importance evaluation results, the comprehensive damage evaluation results and the service evaluation results; and the scheme layer is the zoning obtained according to the trade-off of the "protection-construction" target, according to the construction development trend, the zoning is divided into five categories, i.e., an important ecological protection zone, an ecological system recovery zone, an ecological quality improvement zone, a comprehensive utilization value creation zone and a low-carbon construction control zone.

[0095] In the present application, for the "protection-construction" suitability evaluation, a two-level index system including three first-level indexes and ten second-level indexes is established, that is, the corresponding pre-set evaluation weights. Therefore, the evaluation weights need to be pre-set before the implementation of the zoning module, and the process of setting the evaluation weights includes: the pre-set evaluation weights, that is, the indexes of the importance evaluation results, the comprehensive damage evaluation results and the service evaluation results; the indexes of the importance evaluation results, the comprehensive damage evaluation results and the service evaluation results are quantified according to the nine-degree method, to obtain the quantification scores of each two indexes; the index weight of each index is calculated according to the quantification scores of each two indexes, and the maximum characteristic and consistency checking formula are calculated, when the maximum characteristic meets the consistency requirement, the corresponding evaluation weight is set according to the index weight of each index.

[0096] Specifically, in the present application, the indexes of the importance evaluation results, the comprehensive damage evaluation results and the service evaluation results are first set, the three indexes are compared with each other by the nine-degree method, and the quantification scores of each two indexes are obtained. Among them, the nine-degree method is as shown in Figure 4As shown, the pre-designed scoring questionnaire is designed by using the nine-degree method, and after the questionnaire is collected, the importance comparison between two indicators at different levels is obtained for quantitative description. Then, the YAAHP software is used to identify the judgment matrix, and the index weight of each index is calculated. The YAAHP software is a comprehensive evaluation auxiliary software based on the analytic hierarchy process, which can provide help in model construction, calculation and analysis, and the principle of identifying the judgment matrix is as follows: first, the n-th root of the product of the comparison results of each row index item is normalized, that is, the following formula:

[0097]

[0098] Wherein, W i is the weight of each index, n is the number of evaluation index items, M i is the product of the comparison results of each row index item.

[0099] For the obtained weight, the maximum characteristic value of the judgment matrix is verified whether it meets the consistency requirement by calculating the maximum characteristic formula and consistency checking formula. The calculation formula of the maximum characteristic value is as follows:

[0100]

[0101] Wherein, λ max为 is the maximum characteristic value of the matrix, A is the judgment matrix, W i is the weight matrix of each index, if λ max >n, the matrix consistency needs to be verified according to the consistency checking formula. The consistency checking formula is as follows:

[0102]

[0103] If CR<0.1, the judgment matrix meets the consistency requirement; wherein, CR is the judgment index of the consistency of the judgment matrix, and RI is the average random consistency index of the n-order matrix.

[0104] And the index weight of each index obtained by the above method is set to the corresponding evaluation weight, and the weight corresponding to the index is shown in Table 5.

[0105] Table 5: "protection-construction" suitability evaluation index system and weight

[0106]

[0107] After obtaining the evaluation weight shown in Table 5, the function of the partition module can be realized. In the partition module, the data acquisition unit acquires the importance evaluation result, the comprehensive damage evaluation result and the service evaluation result of each grid. The final evaluation result generation unit acquires the evaluation weight preset, and according to the evaluation weight preset, the importance evaluation result, the comprehensive damage evaluation result and the service evaluation result of each grid are summed by using the target platform to obtain the final evaluation result of each grid; wherein the target platform used is an ArcGIS platform, the value of the index factor after standardization is calculated with the coupling weight obtained above by using the spatial link and field calculator functions of the ArcGIS platform to obtain the final evaluation result, and the specific formula is:

[0108]

[0109] Wherein, E n represents the "protection-construction" suitability score of the unit range n, that is, the final evaluation result, P is the number of index of the next level contained in the unit range n, X i is the value of the index i factor, W i is the weight of the index i.

[0110] After calculating the final evaluation result of each grid, the "protection-construction" suitability is divided into 5 levels and assigned values by using the spatial analysis function "natural break method" in the ArcGIS platform, that is, the corresponding category is set to 5, and according to the high to low, the five categories of "important ecological protection area, ecological system recovery area, ecological quality improvement area, comprehensive utilization value creation area and low-carbon construction control area" are correspondingly assigned, and finally the ecological restoration partition map is obtained.

[0111] In the application dimension, the present application proposes the ecological restoration partition division of the specific ecological space of the area in smaller and more fine granularity to meet the present situation, boundary spatialization and land parcelization and other requirements of the spatial ecological restoration work; in the evaluation aspect, the ecological status evaluation not only studies single ecological function, but also constructs the evaluation model of "importance evaluation-comprehensive damage evaluation-social service value evaluation", and comprehensively considers the ecological protection and utilization potential, which plays an important role in the protection and utilization of high-density urban ecological space and the effectiveness of strengthening ecological restoration implementation; in the index system, the evaluation method is proposed for identifying the social benefit and ecological system service value of the ecological space, the evaluation index system is constructed, the calculation rule is proposed, and the development and utilization potential of the ecological space is quantitatively calculated; in the technical method, the protection and development conflict space is identified considering multiple dimensions and multiple indexes, the analytic hierarchy process is used, the "protection-construction" suitability evaluation model is constructed, and the present application is more feasible.

[0112] The ecological restoration zoning classification system comprises an importance evaluation module, a comprehensive damage evaluation module, a service evaluation module and a zoning module, the zoning module is connected with the importance evaluation module, the comprehensive damage evaluation module and the service evaluation module respectively, the importance evaluation module is used for obtaining environmental information of a target area, according to the environmental information, a comprehensive evaluation model of ecosystem services and trade-offs is used to identify core habitat space, according to the core habitat space and pre-set index elements, an importance evaluation result of each grid of the target area is obtained, the comprehensive damage evaluation module is used for obtaining ecological data of the target area, according to the specification requirements of the target area, data of each grid of the target area is generated, and normalization and weighting are performed, a normalized score of each grid is obtained, and a corresponding comprehensive damage evaluation result is obtained according to the normalized score of each grid, the service evaluation module is used for obtaining social information of the target area, according to the assignment of pre-set social service influence factors, the service value of each grid is calculated, and the service evaluation result of each grid is obtained according to all the service values, and the zoning module is used for obtaining the importance evaluation result, the comprehensive damage evaluation result and the service evaluation result of each grid, according to pre-set evaluation weights, the importance evaluation result, the comprehensive damage evaluation result and the service evaluation result are calculated to obtain a final evaluation result, and the target area is zoned according to the final evaluation result. When zoning is performed, not only a single ecological function is evaluated, but also an evaluation model of “importance evaluation-comprehensive damage evaluation-social service value evaluation” is constructed, so that ecological protection and available potential are considered comprehensively, and an evaluation method is proposed for identifying the social benefits of ecological space and the value of ecosystem services, so that an evaluation index is constructed, and a corresponding calculation method is used, so that the zoning result obtained according to the index can realize accurate zoning and better realize ecological restoration.

[0113] Further, as shown in Figure 5 Based on the above ecological restoration zoning classification system, the application further provides an ecological restoration zoning classification method, wherein the ecological restoration zoning classification method comprises:

[0114] S51, obtaining environmental information of a target area, according to the environmental information, a comprehensive evaluation model of ecosystem services and trade-offs is used to identify core habitat space, according to the core habitat space and pre-set index elements, an importance evaluation result of each grid of the target area is obtained;

[0115] S52, obtaining ecological data of the target area, according to the specification requirements of the target area, data of each grid of the target area is generated, and normalization and weighting are performed, a normalized score of each grid is obtained, and a corresponding comprehensive damage evaluation result is obtained according to the normalized score of each grid.

[0116] S53, obtaining social information of the target region, calculating service value of each grid according to preset assignment of social service impact factor, and obtaining service evaluation result of each grid according to all service values.

[0117] S54, calculating final evaluation result according to preset evaluation weight, importance evaluation result, comprehensive damage evaluation result and service evaluation result, and partitioning the target region according to the final evaluation result.

[0118] The environment information of the target region is obtained, the core habitat space is identified by using an ecosystem service and trade-off comprehensive evaluation model according to the environment information, the importance evaluation result of each grid of the target region is obtained according to the core habitat space and preset index elements, and the method further comprises the following steps:

[0119] obtaining preset unit setting information;

[0120] dividing the target region into multiple grids according to the preset unit setting information.

[0121] The social information of the target region is obtained, service value of each grid is calculated according to preset assignment of social service impact factor, and service evaluation result of each grid is obtained according to all service values.

[0122] obtaining seven types of related social service impact factors, and setting assignment of each related social service impact factor;

[0123] In the target platform, multiple buffer zones of each related social service impact factor are established, and each buffer zone of each related social service impact factor is re-assigned to obtain assignment of the social service impact factor.

[0124] The final evaluation result is obtained by calculating the importance evaluation result, the comprehensive damage evaluation result and the service evaluation result according to the preset evaluation weight, and the target region is partitioned according to the final evaluation result.

[0125] setting indexes of the importance evaluation result, the comprehensive damage evaluation result and the service evaluation result;

[0126] quantifying the indexes of the importance evaluation result, the comprehensive damage evaluation result and the service evaluation result according to the nine-degree method to obtain quantification scores of each two indexes;

[0127] The index weight of each index is calculated according to the quantification score of each two indexes, and the maximum characteristic and consistency checking formula are calculated, and when the maximum characteristic meets the consistency requirement, the corresponding evaluation weight is set according to the index weight of each index.

[0128] Further, as shown in the drawings, Figure 6 Based on the ecological restoration partition classification method and system, the application further provides a terminal. Figure 6 Only some components of the terminal are shown, but it should be understood that all the shown components are not required, and more or less components can be alternatively implemented.

[0129] The memory 20 can be an internal storage unit of the terminal in some embodiments, such as a hard disk or a memory of the terminal. The memory 20 can also be an external storage device of the terminal in other embodiments, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the terminal. Further, the memory 20 can include both the internal storage unit and the external storage device of the terminal. The memory 20 is used to store application software and various data installed on the terminal, such as program codes of the terminal, etc. The memory 20 can also be used to temporarily store data that has been output or will be output. In an embodiment, the memory 20 stores an ecological restoration partition classification program 40, which can be executed by the processor 10 to implement the ecological restoration partition classification method of the application.

[0130] The processor 10 can be a central processing unit (CPU), a microprocessor or other data processing chip in some embodiments, used to run program codes or process data stored in the memory 20, such as to execute the ecological restoration partition classification method, etc.

[0131] The display 30 can be an LED display, a liquid crystal display, a touch liquid crystal display, an OLED (Organic Light-Emitting Diode) touch, etc. in some embodiments. The display 30 is used to display information on the terminal and to display a visualized user interface.

[0132] In an embodiment, the processor 10 implements the steps of the above ecological restoration partition classification method when executing the ecological restoration partition classification program 40 in the memory 20.

[0133] The application further provides a computer readable storage medium, wherein the computer readable storage medium stores an ecological restoration partition classification program, and the ecological restoration partition classification program, when executed by a processor, implements the steps of the ecological restoration partition classification method.

[0134] It should be noted that, in this document, the terms "comprising" and "including" or any other variant thereof are intended to cover a non-exclusive inclusion, such that processes, methods, articles, or terminals including a series of elements not only include those elements, but also include other elements not explicitly listed, or further include inherent elements of such processes, methods, articles, or terminals. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or terminal including the element.

[0135] Of course, those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by a computer program instructing relevant hardware (such as a processor, a controller, etc.) to complete, and the program can be stored in a computer readable computer readable storage medium, and the program can include the processes of the above-mentioned method embodiments when executed. The computer readable storage medium can be a memory, a magnetic disc, an optical disc, etc.

[0136] It should be understood that the application is not limited to the above examples, and those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes should belong to the protection scope of the appended claims of the application.

Claims

1. An ecological restoration zonation classification system, characterized in that, The ecological restoration zoning classification system comprises an importance evaluation module, a comprehensive damage evaluation module, a service evaluation module and a zoning module, wherein the zoning module is connected with the importance evaluation module, the comprehensive damage evaluation module and the service evaluation module respectively; The importance evaluation module is configured to obtain environmental information of a target area, identify core habitat space by using a comprehensive evaluation model of ecosystem services and trade-offs according to the environmental information, and obtain an importance evaluation result of each grid of the target area according to the core habitat space and pre-set index elements; The comprehensive damage evaluation module is configured to obtain ecological data of the target area, generate data of each grid of the target area according to specification requirements of the target area, normalize and weight the data, obtain a normalized score of each grid, and obtain a corresponding comprehensive damage evaluation result according to the normalized score of each grid; The service evaluation module is configured to obtain social information of the target area, calculate a service value of each grid according to pre-set values of social service impact factors, and obtain a service evaluation result of each grid according to all the service values; The zoning module is configured to obtain the importance evaluation result, the comprehensive damage evaluation result and the service evaluation result of each grid, calculate the importance evaluation result, the comprehensive damage evaluation result and the service evaluation result according to pre-set evaluation weights, obtain a final evaluation result, and zone the target area according to the final evaluation result.

2. The ecological restoration zonation classification system of claim 1, wherein, The importance evaluation module comprises a habitat quality index calculation unit, a selection unit and an importance evaluation result generation unit; The habitat quality index calculation unit is configured to obtain environmental information of a target area, input the environmental information into a comprehensive evaluation model of ecosystem services and trade-offs, and obtain a habitat quality index of each grid according to a threat factor setting parameter; The selection unit is configured to select a corresponding grid as a core habitat space according to all the habitat quality indexes; The importance evaluation result generation unit is configured to obtain pre-set index elements, evaluate each grid according to the core habitat space and the pre-set index elements, and obtain an importance evaluation result of each grid.

3. The ecological restoration zonation classification system of claim 1, wherein, The service evaluation module comprises a social service impact factor identification unit, a service value calculation unit and a service evaluation result generation unit; The social service impact factor identification unit is configured to obtain social information of a target area and identify a current social service impact factor from the social information; The service value calculation unit is configured to determine a value of the current social service impact factor according to pre-set values of social service impact factors, and calculate a service value of each grid correspondingly; The service evaluation result generation unit is configured to obtain a social service value evaluation spatial distribution map according to all the service values, and obtain a service evaluation result of each grid according to the social service value evaluation spatial distribution map.

4. The ecological restoration zonation classification system of claim 1, wherein, The zoning module comprises a data acquisition unit, a final evaluation result generation unit and a zoning unit: The data acquisition unit is configured to acquire the importance evaluation result, the comprehensive damage evaluation result, and the service evaluation result of each grid. The final evaluation result generation unit is configured to acquire a preset evaluation weight, and to sum the importance evaluation result, the comprehensive damage evaluation result, and the service evaluation result of each grid by using the target platform according to the preset evaluation weight, to obtain the final evaluation result of each grid. The partition unit is configured to partition the target region according to the final evaluation result of each grid.

5. An ecological restoration zoning classification method characterized by, The ecological restoration partition classification method comprises: Acquiring environmental information of a target region, identifying a core habitat space by using a comprehensive evaluation model of ecosystem services and trade-offs according to the environmental information, and obtaining an importance evaluation result of each grid of the target region according to the core habitat space and a preset index element; Acquiring ecological data of the target region, generating data of each grid of the target region according to a specification requirement of the target region, and obtaining a normalized score of each grid by normalizing and weighting, and obtaining a corresponding comprehensive damage evaluation result according to the normalized score of each grid; Acquiring social information of the target region, calculating a service value of each grid according to a preset assignment of a social service impact factor, and obtaining a service evaluation result of each grid according to all the service values; Calculating the importance evaluation result, the comprehensive damage evaluation result, and the service evaluation result according to a preset evaluation weight to obtain a final evaluation result, and partitioning the target region according to the final evaluation result.

6. The method of claim 5, wherein, The acquiring of the environmental information of the target region, the identifying of the core habitat space by using the comprehensive evaluation model of ecosystem services and trade-offs according to the environmental information, and the obtaining of the importance evaluation result of each grid of the target region according to the core habitat space and the preset index element further comprise: Acquiring preset unit setting information; Dividing the target region into multiple grids according to the preset unit setting information.

7. The method of claim 5, wherein, The acquiring of the social information of the target region, the calculating of the service value of each grid according to the preset assignment of the social service impact factor, and the obtaining of the service evaluation result of each grid according to all the service values further comprise: Acquiring seven types of related social service impact factors, and assigning a value to each type of related social service impact factor; In the target platform, multiple buffer zones of each type of related social service impact factor are established, and each buffer zone of each type of related social service impact factor is re-assigned to obtain the assignment of the social service impact factor.

8. The ecological restoration zonation classification of claim 5, wherein, The calculating of the importance evaluation result, the comprehensive damage evaluation result, and the service evaluation result according to the preset evaluation weight to obtain the final evaluation result, and the partitioning of the target region according to the final evaluation result further comprise: Setting indexes of the importance evaluation result, the comprehensive damage evaluation result, and the service evaluation result; Quantifying the indexes of the importance evaluation result, the comprehensive damage evaluation result, and the service evaluation result according to the nine-degree method to obtain a quantified score of each two indexes; According to the quantification score of each two indexes, the index weight of each index is calculated, and the maximum characteristic and consistency checking formula are calculated, and when the maximum characteristic meets the consistency requirement, the corresponding evaluation weight is set according to the index weight of each index.

9. A terminal, characterized by comprising: The terminal comprises a memory, a processor, and an ecological restoration partition classification program stored on the memory and executable on the processor, and the processor executes the ecological restoration partition classification program to implement the steps of the ecological restoration partition classification method according to any one of claims 5-8.

10. A computer-readable storage medium, characterized in that, The computer readable storage medium stores an ecological restoration partition classification program, and the processor executes the ecological restoration partition classification program to implement the steps of the ecological restoration partition classification method according to any one of claims 5-8.

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