A key evaluation system for complex system of ecological restoration of territorial space

Abstract

The application belongs to the technical field of land resource management, and discloses a kind of land space ecological restoration complex system key evaluation system, the land space ecological restoration complex system key evaluation system includes: basic geographic data acquisition module, multi-source spatial data integration module, central control module, evaluation index system construction module, coupling coordination degree measurement module, regional ecological space feature extraction module, key area identification evaluation module, ecological restoration demonstration system construction module, data cloud storage module, update display module.The application can conveniently adapt to data source changes by centralized management of basic geographic information data in the region to be evaluated through the multi-source spatial data integration module; the coupling coordination degree of ecological-society-economy function in the region to be evaluated is obtained by the coupling coordination degree measurement module, which prevents the dissipation of beneficial effects of ecology, economy and society caused by land use transformation and improves the effectiveness of land space ecological restoration.

Description

Technical Field

[0001] This invention belongs to the field of land resource management technology, and in particular relates to a complex and systematic key evaluation system for ecological restoration of national land space. Background Technology

[0002] Since the founding of the People's Republic of China, urbanization and industrialization have developed rapidly, driven by long-term resource development and utilization. While this has improved people's living standards and made substantial contributions to the socio-economic development, it has also significantly increased the likelihood and risk of ecosystem disorder, resource depletion, and environmental degradation. Therefore, it is essential to establish a national land space that can provide high-quality ecological products and ecosystem services. Thus, national land space ecological restoration is a crucial measure for promoting ecological civilization in my country. However, current research on national land space ecological restoration is still in its early stages. Scholars primarily focus on theoretical research such as conceptual understanding, connotation cognition, problem discussion, paradigm induction, and logical definition, with qualitative analysis being the main approach. Empirical and quantitative analysis are far from sufficient, and there have been few breakthroughs in the exploration of technologies related to national land space ecological restoration. This results in a lack of reliable data and practical support for the implementation of national land space ecological restoration work. In conclusion, to ensure the efficient advancement of ecological civilization construction and the smooth implementation of territorial spatial ecological restoration, it is essential to combine qualitative and quantitative analysis, leverage existing academic achievements and technologies such as RS and GIS, tackle key technologies for territorial spatial ecological restoration, focus on the development strategies and implementation paths of territorial spatial ecological restoration within the context of social-ecological coupling and coordination, and conduct empirical research by establishing typical regions (counties / cities / districts) as demonstration units. This will help solidify the relevant theories of territorial governance and ecological restoration and has practical significance in supporting and guiding related work in various regions.

[0003] Existing academic literature on ecological restoration techniques and methods can be broadly categorized into two types: one focuses on ecosystem types, exploring specific ecological restoration methods for different ecosystems; the other focuses on ecosystem elements, conducting research on restoration techniques for specific ecological and environmental elements. In the first type of literature, ecological restoration of grassland, forest (forest area), river (watershed), wetland, and mining (mining area) ecosystems is a hot research area both domestically and internationally. For example, Corbin et al. emphasized that grassland ecological restoration should adopt methods such as burning, topsoil removal, deep plowing, and covering with organic matter to improve soil properties, thereby promoting the establishment of grassland plant communities; Cao and Zhang et al. effectively prevented grassland desertification by setting up grass checkerboard sand barriers; Wang Yunlin pointed out in his research on the forest ecosystem of the Guangdong-Hong Kong-Macao Greater Bay Area that stand transformation can be implemented to promote positive forest succession; Zhang Wenzhao et al. used the constructed ecosystem degradation driving force model to propose a specific regional restoration plan for the Tanghe River Basin; Germany and Ireland developed artificial propagation technology for wetland plants that cannot spread naturally, and used artificial grass mats to transplant them to different degraded areas for vegetation restoration, with promising results; Yin Yaqiu et al. combined the current advanced technologies for mine environmental restoration to study and propose a number of comprehensive mine ecological environment restoration strategies; Bi Yinli utilized the strong vitality and adaptability of arbuscular mycorrhizal fungi in repairing root function, promoting nutrient absorption and transport, and improving soil, and used dominant arbuscular mycorrhizal fungi as a new breakthrough for the reclamation of coal mining subsidence areas.

[0004] The second category of literature mainly discusses restoration technologies for abiotic environmental elements such as soil and water, biotic elements such as animals and plants, and theoretical elements such as ecosystem structure and function. Regarding the restoration of abiotic elements in ecosystems, the latest technological advancements in high-throughput DNA sequencing and functional gene analysis can rapidly assess functional genes in ecosystems and understand system diversity, providing a basis for improving ecological restoration effects. In phytoremediation, improvements in seed treatment, processing, and quality assessment technologies, the development of seed enhancement technologies, and the refinement of mature agricultural sowing techniques play a supporting role in vegetation reconstruction during ecological restoration. In animal-related restoration, the roles of animals in ecosystems, such as seed dispersal, pollination, and nutrient cycling, can assist in restoring plant community functions and are of great significance for ecological restoration. Regarding the restoration of ecosystem structure and function, advancements in the application of 3S technologies (Science, Technology, and Environment) can assist in large-scale ecological restoration, such as ecological environment monitoring and early warning, environmental assessment, and ecological restoration site selection and design.

[0005] In recent years, ecology and restoration ecology have made significant progress. Theories such as ecological niche, island biogeography, state transition models and thresholds, human design and self-design, and resilient ecosystems have been proposed, greatly promoting the development and updating of ecological restoration technologies and methods. However, land space restoration requires more than just theoretical and technical support from ecology. Due to its wide scope, diverse types of restoration projects, and the need to cover all elements of natural resources such as mountains, rivers, forests, fields, lakes, and grasslands, it necessitates the coordinated application of multiple technologies, perspectives, and levels. The future development trend of land space ecological restoration technologies will be based on drawing on existing research and practices both domestically and internationally, adapting to local conditions, conducting in-depth research and development, achieving the organic integration of natural restoration and artificial intervention, encompassing comprehensive governance methods including biological, natural, and human approaches, and realizing the coordinated application of various technical means such as engineering, biology, chemistry, and physical methods to form optimal design paradigms and technical method combinations for land space ecological restoration.

[0006] In the process of comprehensively advancing ecological civilization construction in my country, territorial spatial ecological restoration plays a crucial role in optimizing the spatial pattern of the land, improving resource utilization efficiency, enhancing the quality of the ecological environment, and accelerating the implementation of the overall territorial spatial plan. To ensure the quality of territorial spatial ecological restoration, accelerate the restoration process, and improve restoration capabilities, it is urgent to actively explore territorial spatial ecological restoration technologies. However, currently, there are no registered intellectual property rights, such as patents, standards, and software copyrights, related to key identification technologies for ecological restoration and critical evaluation models for complex systems. Therefore, it is imperative to design a new critical evaluation method and system for complex systems in territorial spatial ecological restoration to fill the gaps in existing technologies.

[0007] Based on the above analysis, the existing technologies have the following problems and shortcomings: there are currently no registered intellectual property rights such as patents, standards, and software copyrights related to key identification technologies for ecological restoration and key evaluation models for complex systems. Summary of the Invention

[0008] To address the problems existing in the prior art, this invention provides a key evaluation system for the complex systemic nature of territorial space ecological restoration.

[0009] The present invention is implemented as follows: a key evaluation system for complex systems of ecological restoration of national land space, the key evaluation system for complex systems of ecological restoration of national land space includes: a basic geographic data acquisition module, which is connected to a central control module, and is used to acquire basic geographic information data of the area to be evaluated through data acquisition equipment using website queries, map data, statistical yearbooks and field measurement methods;

[0010] The multi-source spatial data integration module is connected to the central control module. It is used to integrate the acquired multi-source and multi-scale spatial data through the data integration program using multi-scale target matching, multi-scale storage and indexing, and scale transformation methods to obtain a multi-source spatial dataset.

[0011] The central control module is connected to the basic geographic data acquisition module, the multi-source spatial data integration module, the evaluation index system construction module, and the coupling coordination degree calculation module. It is used to coordinate and control the normal operation of each module of the complex and systematic key evaluation system for ecological restoration of national land space through the central processor.

[0012] The evaluation indicator system construction module is connected to the central control module. It is used to clarify the quantitative methods and indicators of each element of "mountains, rivers, forests, fields, lakes and grasslands" based on the cascading framework of "elements-patterns-processes-services" in the land space through the system construction program, and to establish a regional ecological-social-economic function evaluation indicator system.

[0013] The coupling coordination degree calculation module, connected to the central control module, is used to quantitatively calculate the coupling coordination degree of ecological-social-economic functions within the area to be evaluated using a coupling coordination degree model through a calculation program. This includes:

[0014] Obtain various indicator data from the three subsystems of ecology, society, and economy;

[0015] The grey relational degree formula is used to calculate the grey relational degree between each type of indicator in the three subsystems of ecology, society and economy and the land use structure entropy based on the obtained indicator data.

[0016] The development index of each subsystem is calculated based on the grey relational degree using the development index equation, and the change curve of the development index of each subsystem is fitted according to the year.

[0017] The coupling coordination degree of ecological, social and economic functions in the area to be evaluated is quantitatively measured based on the development index of the three subsystems using the coupling coordination degree calculation formula.

[0018] The formula for calculating the coupling coordination degree is as follows:

[0019] C = 3{(U1·U2·U3) / [(U1+U2)(U1+U3)(U2·U3)]}1 / 3;

[0020] In the formula, U1, U2, and U3 represent the development indices of the economic, social, and ecological subsystems in a certain year, respectively.

[0021] Furthermore, the aforementioned complex and systematic key evaluation system for territorial space ecological restoration also includes:

[0022] The central control module is connected to the regional ecological space feature extraction module, the key area identification and evaluation module, the ecological restoration demonstration system construction module, the data cloud storage module, and the update and display module. It is used to coordinate and control the normal operation of each module of the complex and systematic key evaluation system for ecological restoration of national land space through the central processor.

[0023] The regional ecological space feature extraction module, connected to the central control module, is used to perform spatial comparison and temporal analysis of the region to be evaluated using the ESDA method, clarify the spatial characteristics and pattern evolution characteristics of the regional ecological space, and determine the feedback mechanism of ecological-social-economic functions.

[0024] The key area identification and evaluation module is connected to the central control module. It is used to construct evaluation models and regional ecological security patterns through the identification and evaluation program, and to conduct key area identification, evaluation and analysis in sequence.

[0025] The ecological restoration demonstration system construction module is connected to the central control module. It is used to establish ecological restoration demonstration units for territorial space through the demonstration system construction program, carry out integrated ecological restoration demonstrations in the identified key areas for ecological restoration of territorial space, and integrate and establish an ecological restoration demonstration technology system.

[0026] The data cloud storage module, connected to the central control module, is used to store the basic geographic information data, multi-source spatial datasets, regional ecological-social-economic function evaluation index system, coupling coordination degree of ecological-social-economic functions in the region to be evaluated, spatial characteristics and pattern evolution characteristics of regional ecological space, and key area identification and evaluation information acquired through the cloud database server.

[0027] The update display module, connected to the central control module, is used to update and display real-time data on the acquired basic geographic information data, multi-source spatial datasets, regional ecological-social-economic function evaluation index system, coupling coordination degree of ecological-social-economic functions within the region to be evaluated, spatial characteristics and pattern evolution characteristics of regional ecological space, and key area identification and evaluation information within the display screen.

[0028] Furthermore, the specific process by which the data cloud storage module stores data is as follows:

[0029] The basic geographic information data, multi-source spatial datasets, regional ecological-social-economic function evaluation index system, coupling and coordination degree of ecological-social-economic functions in the region to be evaluated, spatial characteristics and pattern evolution characteristics of regional ecological space, and key area identification and evaluation information are packaged and transmitted to the cloud server through communication equipment.

[0030] The cloud server performs a hash calculation on the key features of the data to obtain a number; the cloud server performs a modulo operation on the obtained number and the number of servers to obtain the server number; and stores the corresponding data on the corresponding cloud server.

[0031] Furthermore, the ecological restoration demonstration system construction module establishes national land space ecological restoration demonstration units, conducts integrated ecological restoration demonstrations in identified key areas of national land space ecological restoration, and integrates and establishes an ecological restoration demonstration technology system. The specific process is as follows:

[0032] First, we need to identify the ecological source areas to form the basis for building an ecological security pattern.

[0033] Then, based on existing empirical data, ecological resistance is constructed, and corresponding resistance values ​​are assigned according to the ecosystem service value per unit area of ​​land use type.

[0034] Secondly, an ecological resistance surface is constructed using the minimum cumulative resistance model, and ecological corridors and barrier zones are identified using the random walk property of charge.

[0035] Finally, establish ecological restoration zones with a small ecological security framework.

[0036] Furthermore, the requirements for identifying the ecological source area are: good ecological landscape connectivity, strong sensitivity to ecological factors, and ecosystem services;

[0037] The model for identifying ecological corridors using the random walk property of charge is as follows:

[0038]

[0039] Where MCR is the minimum cumulative resistance value, j is the ecological source area, and D is the ecological source area. ij R is the spatial distance R traversed from the ecological source area j to a certain point in space across the base surface i. i This represents the fundamental resistance of patch i to ecological processes or species movement.

[0040] Furthermore, the specific process of identifying obstacle regions using the random walk characteristic of charges is as follows:

[0041] Based on ecological corridors, corresponding moving windows are established to detect potential areas that hinder ecological processes; at the same time, the connectivity value restored per unit distance represents the impact factor of the obstacle area.

[0042] The specific process for establishing ecological restoration zones with a small ecological security pattern is as follows:

[0043] Ecological source areas, obstacle areas, and ecological resistance surfaces were selected for normalization processing within a certain time period, taking into account ecological restoration needs, the difficulty of ecological processes, and the characteristics of ecological elements.

[0044] While ensuring the preservation of the ecological source area, the barrier area and ecological resistance surface after naturalization are superimposed to form a zoning index, and the natural discontinuity method is used to zonify the ecological restoration.

[0045] Furthermore, the partition index is specifically as follows:

[0046]

[0047] Among them, EPS regional index, IS i IS represents the value of raster cell i in the obstacle area. min IS is the minimum value of the obstacle zone. max R represents the maximum value in the obstacle zone, and R is the value of the minimum cumulative drag surface grating cell i. min R is the minimum value of the resistance surface. max denoted as the maximum value of the resistance surface, and n as the number of years.

[0048] Furthermore, the basic geographic information data in the basic geographic data acquisition module includes DEM data, DOM data, DLG data, DRG data, national geographic census data, and geological survey data.

[0049] Furthermore, the multi-source spatial data integration module integrates the acquired multi-source, multi-scale spatial data through a data integration program using multi-scale target matching, multi-scale storage and indexing, and scale transformation methods, including:

[0050] (1) Receive external application requests using the application parser mounted on the multi-source spatial data integration module, create a data integration task package, and add a data packet header;

[0051] (2) Based on the task sequence number header information in the data integration task package, create a data source list header and add the various parameters and attributes of the data source in the data source list header;

[0052] (3) Use multi-scale target matching, multi-scale storage and indexing and scale transformation methods to integrate multi-source and multi-scale spatial data based on data attribute information to generate multi-source spatial datasets;

[0053] The data packet header includes a task sequence header, a data item set header, a data integration attribute header, a data integration range header, and a condition limitation information header.

[0054] Furthermore, the key area identification and evaluation module constructs an evaluation model and a regional ecological security pattern using an identification and evaluation program, and then sequentially performs key area identification, evaluation, and analysis, including:

[0055] (1) Construct evaluation models for ecological environment status assessment, ecological function importance assessment and ecological function vulnerability assessment respectively, and conduct evaluation and analysis in sequence;

[0056] (2) Based on the evaluation model, determine the ecological environment deterioration zone, the ecological function important zone and the ecological space fragile zone, as the basis for identifying the key zone for ecological restoration of national land space;

[0057] (3) By constructing a regional ecological security system, diagnosing ecological pinch points, ecological barrier points and ecological fault points, forming a multi-scale and multi-level key area identification technology system for ecological restoration, and identifying and determining key areas for ecological restoration of national land space respectively;

[0058] The methods for constructing a regional ecological security system include habitat quality models, habitat risk assessment models, granular back-calculation methods, minimum cumulative resistance models, and circuit theory methods.

[0059] Combining all the above technical solutions, the advantages and positive effects of this invention are as follows: The complex systemic key evaluation system for territorial spatial ecological restoration provided by this invention centrally manages basic geographic information data within the evaluation area through a multi-source spatial data integration module, which can easily adapt to changes in data sources. Through a coupling coordination degree calculation module, it accurately calculates the development speed of the three subsystems of the target area—economic, ecological, and social—based on the original land use data and relevant economic, social, and ecological indicators. This quantitatively calculates the coupling coordination degree of ecological-social-economic functions within the evaluation area, preventing the erosion of the beneficial ecological, economic, and social effects brought about by land use transformation and providing clear guidance for land use transformation. Furthermore, this invention can also provide methodological references and technical support for improving the effectiveness of territorial spatial ecological restoration and promoting the scientific formulation of territorial spatial ecological restoration plans.

[0060] In addition, the present invention has the following advantages:

[0061] (1) Identify a technical method that can achieve multi-source, multi-scale, and multi-element land and space data integration and management, which can be applied and promoted in the future when collecting, sorting, analyzing, and summarizing land and space related data.

[0062] (2) Establish a regional social-ecological function evaluation model based on the cascade framework of "elements-pattern-process-service" in national land space, carry out social-ecological coupling research, and explore the spatiotemporal evolution law and feedback mechanism of ecological space.

[0063] (3) Establish a complex system key evaluation model based on ecological environment status evaluation, ecological function importance evaluation and ecological function vulnerability evaluation. On this basis, combined with the regional ecological security pattern research, construct a multi-scale, multi-level key area identification technology system for ecological restoration, and apply and promote it to Hanyuan, Lushan and Miyi counties.

[0064] (4) Taking Hanyuan, Lushan and Miyi counties as demonstration units, we will carry out integrated ecological restoration demonstration of mountains, water, forests, fields, lakes and grasslands, and establish a set of ecological restoration demonstration technology system, which can provide support and guidance for the implementation of ecological restoration of land space in various places. Attached Figure Description

[0065] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0066] Figure 1 This is a structural block diagram of the key evaluation system for the complex system of ecological restoration of territorial space provided in the embodiments of the present invention;

[0067] The diagram shows: 1. Basic geographic data acquisition module; 2. Multi-source spatial data integration module; 3. Central control module; 4. Evaluation index system construction module; 5. Coupling coordination degree calculation module; 6. Regional ecological spatial feature extraction module; 7. Key area identification and evaluation module; 8. Ecological restoration demonstration system construction module; 9. Data cloud storage module; 10. Update and display module.

[0068] Figure 2 This is a flowchart of the key evaluation method for the complex system of ecological restoration of national land space provided in the embodiments of the present invention.

[0069] Figure 3 This is a flowchart of a method for integrating multi-source, multi-scale spatial data by a multi-source spatial data integration module provided in this embodiment of the invention.

[0070] Figure 4 This is a flowchart of a method for quantitatively measuring the coupling coordination degree of ecological, social, and economic functions within an area to be evaluated, provided by the coupling coordination degree measurement module in this embodiment of the invention.

[0071] Figure 5 This is a flowchart illustrating the method for constructing an evaluation model and regional ecological security pattern using the key area identification and evaluation module provided in this embodiment of the invention, and sequentially performing key area identification, evaluation, and analysis. Detailed Implementation

[0072] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0073] To address the problems existing in the prior art, this invention provides a complex and systematic key evaluation system for ecological restoration of national land space. The invention will now be described in detail with reference to the accompanying drawings.

[0074] like Figure 1 As shown, the complex systemic key evaluation system for ecological restoration of national land space provided in this embodiment of the invention includes a basic geographic data acquisition module 1, a multi-source spatial data integration module 2, a central control module 3, an evaluation index system construction module 4, a coupling coordination degree calculation module 5, a regional ecological spatial feature extraction module 6, a key area identification and evaluation module 7, an ecological restoration demonstration system construction module 8, a data cloud storage module 9, and an update and display module 10.

[0075] The basic geographic data acquisition module 1 is connected to the central control module 3 and is used to acquire basic geographic information data of the area to be evaluated through data acquisition equipment using website queries, map data, statistical yearbooks and field measurement methods.

[0076] The multi-source spatial data integration module 2 is connected to the central control module 3. It is used to integrate the acquired multi-source and multi-scale spatial data through the data integration program using multi-scale target matching, multi-scale storage and indexing and scale transformation methods to obtain a multi-source spatial dataset.

[0077] The central control module 3 is connected to the basic geographic data acquisition module 1, the multi-source spatial data integration module 2, the evaluation index system construction module 4, the coupling coordination degree calculation module 5, the regional ecological spatial feature extraction module 6, the key area identification and evaluation module 7, the ecological restoration demonstration system construction module 8, the data cloud storage module 9, and the update display module 10. It is used to coordinate and control the normal operation of each module of the complex systematic key evaluation system for ecological restoration of national land space through the central processor.

[0078] The evaluation index system construction module 4, connected to the central control module 3, is used to clarify the quantitative methods and indicators of each element of "mountains, rivers, forests, fields, lakes and grasslands" based on the cascading framework of "elements-patterns-processes-services" in the land space through the system construction program, and to establish a regional ecological-social-economic function evaluation index system.

[0079] The coupling coordination degree calculation module 5 is connected to the central control module 3 and is used to quantitatively calculate the coupling coordination degree of ecological-social-economic functions in the area to be evaluated by using the coupling coordination degree model through the calculation program.

[0080] The regional ecological space feature extraction module 6 is connected to the central control module 3. It is used to perform spatial comparison and temporal analysis of the region to be evaluated using the ESDA method, clarify the spatial characteristics and pattern evolution characteristics of the regional ecological space, and determine the feedback mechanism of ecological-social-economic functions.

[0081] The key area identification and evaluation module 7 is connected to the central control module 3. It is used to construct evaluation models and regional ecological security patterns through the identification and evaluation program, and to conduct key area identification, evaluation and analysis in sequence.

[0082] The ecological restoration demonstration system construction module 8 is connected to the central control module 3. It is used to establish a national space ecological restoration demonstration unit through the demonstration system construction program, carry out integrated ecological restoration demonstration in the identified key areas of national space ecological restoration, and integrate and establish an ecological restoration demonstration technology system.

[0083] The data cloud storage module 9, connected to the central control module 3, is used to store the basic geographic information data, multi-source spatial datasets, regional ecological-social-economic function evaluation index system, coupling coordination degree of ecological-social-economic functions in the region to be evaluated, spatial characteristics and pattern evolution characteristics of regional ecological space, and key area identification and evaluation information obtained through the cloud database server.

[0084] The update display module 10, connected to the central control module 3, is used to update and display real-time data on the acquired basic geographic information data, multi-source spatial datasets, regional ecological-social-economic function evaluation index system, coupling coordination degree of ecological-social-economic functions in the region to be evaluated, spatial characteristics and pattern evolution characteristics of regional ecological space, and key area identification and evaluation information within the acquired area.

[0085] like Figure 2 As shown, the key evaluation method for complex systems of territorial space ecological restoration provided in this embodiment of the invention includes the following steps:

[0086] S101, through the basic geographic data acquisition module, the data acquisition equipment is used to acquire basic geographic information data of the area to be evaluated by means of website query, map data, statistical yearbook and field measurement.

[0087] S102, through the multi-source spatial data integration module, the data integration program uses multi-scale target matching, multi-scale storage and indexing, and scale transformation methods to integrate the acquired multi-source and multi-scale spatial data to obtain a multi-source spatial dataset.

[0088] S103, through the central control module, the central processor coordinates and controls the normal operation of each module of the complex systemic key evaluation system for ecological restoration of territorial space;

[0089] S104, through the evaluation index system construction module and the system construction program, based on the cascade framework of "elements-pattern-process-service" in territorial space, clarifies the quantitative methods and indicators of each element of "mountains, rivers, forests, fields, lakes and grasslands", and establishes a regional ecological-social-economic function evaluation index system.

[0090] S105, through the coupling coordination degree calculation module, the calculation program uses the coupling coordination degree model to quantitatively calculate the coupling coordination degree of ecological-social-economic functions in the area to be evaluated.

[0091] S106, through the regional ecological space feature extraction module, the ESDA method is used to conduct spatial comparison and temporal analysis of the region to be evaluated, clarify the spatial characteristics and pattern evolution characteristics of the regional ecological space, and determine the feedback mechanism of ecological-social-economic functions.

[0092] S107, through the key area identification and evaluation module, the evaluation model and regional ecological security pattern are constructed respectively using the identification and evaluation program, and the key area identification and evaluation analysis are carried out in sequence.

[0093] S108, through the construction module of the ecological restoration demonstration system, the demonstration unit of ecological restoration of territorial space is established by using the demonstration system construction program to carry out integrated ecological restoration demonstration in the identified key areas of ecological restoration of territorial space, and to integrate and establish an ecological restoration demonstration technology system.

[0094] S109, through the data cloud storage module, utilizes the cloud database server to store the basic geographic information data, multi-source spatial dataset, regional ecological-social-economic function evaluation index system, coupling coordination degree of ecological-social-economic functions in the region to be evaluated, spatial characteristics and pattern evolution characteristics of regional ecological space, and key area identification and evaluation information within the region to be evaluated.

[0095] S110 uses the display module to update and display real-time data on the acquired basic geographic information data, multi-source spatial datasets, regional ecological-social-economic function evaluation index system, coupling coordination degree of ecological-social-economic functions in the region to be evaluated, spatial characteristics and pattern evolution characteristics of regional ecological space, and key area identification and evaluation information within the acquired area.

[0096] In step S101 provided in this embodiment of the invention, the basic geographic information data includes DEM data, DOM data, DLG data, DRG data, national geographic census data, and geological survey data.

[0097] like Figure 3 As shown, in step S102 of this embodiment of the invention, the multi-source spatial data integration module integrates the acquired multi-source, multi-scale spatial data, including:

[0098] S201: The application parser on the multi-source spatial data integration module receives external application requests, creates a data integration task package, and adds a data packet header.

[0099] S202, Based on the task sequence number header information in the data integration task package, create a data source list header and add various parameters and attributes of the data source in the data source list header;

[0100] S203 utilizes multi-scale target matching, multi-scale storage and indexing, and scale transformation methods to integrate multi-source and multi-scale spatial data based on data attribute information, generating a multi-source spatial dataset.

[0101] In step S201 provided in this embodiment of the invention, the data packet header includes a task sequence header, a data item set header, a data integration attribute header, a data integration range header, and a condition limitation information header.

[0102] like Figure 4 As shown, in step S105 of this embodiment of the invention, the coupling coordination degree calculation module quantitatively calculates the coupling coordination degree of ecological-social-economic functions within the area to be evaluated, including:

[0103] S301, to acquire various indicator data of the three subsystems of ecology, society and economy;

[0104] S302, using the grey relational formula, calculates the grey relational degree between each type of indicator of the three subsystems of ecology, society and economy and the land use structure entropy based on the obtained indicator data;

[0105] S303 calculates the development index of each subsystem based on the grey relational degree using the development index equation, and fits the development index change curve of each subsystem according to the year;

[0106] S304 uses the coupling coordination degree calculation formula to quantitatively measure the coupling coordination degree of ecological-social-economic functions in the area to be evaluated based on the development index of the three subsystems.

[0107] The coupling coordination degree calculation formula provided in this embodiment of the invention is as follows:

[0108] C = 3{(U1·U2·U3) / [(U1+U2)(U1+U3)(U2·U3)]}1 / 3;

[0109] Among them, U1, U2, and U3 represent the development indices of the three subsystems of economy, society, and ecology in a certain year, respectively.

[0110] like Figure 5 As shown, in step S107 of this embodiment of the invention, the key area identification and evaluation module constructs an evaluation model and a regional ecological security pattern, and sequentially performs key area identification and evaluation analysis. The specific process is as follows:

[0111] S401, construct evaluation models for ecological environment status assessment, ecological function importance assessment, and ecological function vulnerability assessment respectively, and conduct evaluation and analysis in sequence;

[0112] S402, based on the evaluation model, determines areas of ecological degradation, areas of important ecological function, and areas of fragile ecological space, serving as the basis for identifying key areas for ecological restoration of national land space;

[0113] S403, by constructing a regional ecological security system, diagnoses ecological pinch points, ecological barrier points and ecological fault points, and forms a multi-scale, multi-level key area identification technology system for ecological restoration, and identifies and determines key areas for ecological restoration of national land space respectively.

[0114] In step S403 of this embodiment of the invention, the method for constructing a regional ecological security system includes a habitat quality model, a habitat risk assessment model, a granular back-calculation method, a minimum cumulative resistance model, and a circuit theory method.

[0115] In S108 of this embodiment of the invention, the ecological restoration demonstration system construction module establishes a national land space ecological restoration demonstration unit, carries out integrated ecological restoration demonstration in the identified key areas of national land space ecological restoration, and integrates and establishes an ecological restoration demonstration technology system. The specific process is as follows:

[0116] First, we need to identify the ecological source areas to form the basis for building an ecological security pattern.

[0117] Then, based on existing empirical data, ecological resistance is constructed, and corresponding resistance values ​​are assigned according to the ecosystem service value per unit area of ​​land use type.

[0118] Secondly, an ecological resistance surface is constructed using the minimum cumulative resistance model, and ecological corridors and barrier zones are identified using the random walk property of charge.

[0119] Finally, establish ecological restoration zones with a small ecological security framework.

[0120] The requirements for identifying the ecological source area are: good ecological landscape connectivity, strong sensitivity to ecological factors, and ecosystem services.

[0121] The model for identifying ecological corridors using the random walk property of charge is as follows:

[0122]

[0123] Where MCR is the minimum cumulative resistance value, j is the ecological source area, and D is the ecological source area. ij R is the spatial distance R traversed from the ecological source area j to a certain point in space across the base surface i. i This represents the fundamental resistance of patch i to ecological processes or species movement.

[0124] The specific process of identifying obstacle regions using the random walk property of charges is as follows:

[0125] Based on the ecological corridor, a corresponding mobile window is established to detect potential areas that hinder ecological processes; at the same time, the influence factor of the obstacle area is represented by the connectivity value restored per unit distance.

[0126] The specific process for establishing ecological restoration zones with a small ecological security pattern is as follows:

[0127] Ecological source areas, obstacle areas, and ecological resistance surfaces were selected for normalization processing within a certain time period, taking into account ecological restoration needs, the difficulty of ecological processes, and the characteristics of ecological elements.

[0128] While ensuring the preservation of the ecological source area, the barrier area and ecological resistance surface after naturalization are superimposed to form a zoning index, and the natural discontinuity method is used to zonify the ecological restoration.

[0129] The specific partition index is:

[0130]

[0131] Among them, EPS regional index, IS i IS represents the value of raster cell i in the obstacle area. min IS is the minimum value of the obstacle zone. max R represents the maximum value in the obstacle zone, and R is the value of the minimum cumulative drag surface grating cell i. min R is the minimum value of the resistance surface. max denoted as the maximum value of the resistance surface, and n as the number of years.

[0132] In S109 provided in this embodiment of the invention, the specific process of the data cloud storage module storing data is as follows:

[0133] The basic geographic information data, multi-source spatial datasets, regional ecological-social-economic function evaluation index system, coupling and coordination degree of ecological-social-economic functions in the region to be evaluated, spatial characteristics and pattern evolution characteristics of regional ecological space, and key area identification and evaluation information are packaged and transmitted to the cloud server through communication equipment.

[0134] The cloud server performs a hash calculation on the key features of the data to obtain a number; the cloud server performs a modulo operation on the obtained number and the number of servers to obtain the server number; and stores the corresponding data on the corresponding cloud server.

[0135] The technical solution of the present invention will be further described below with reference to specific embodiments.

[0136] 1. Experimental Objectives

[0137] This embodiment selects Hanyuan County, Baoxing County, and Miyi County as the study area; it explores the integration technology of multi-source land space data in the study area using RS, GIS, and other technologies; based on the cascade framework of "elements-pattern-process-services" in land space and the social-ecological coupling relationship, it explores the spatiotemporal evolution law and mutual feedback mechanism of ecological space; it conducts an assessment of the ecological environment status, importance of ecological functions, and vulnerability of the study area, and constructs an assessment model that reflects the correlation of complex systems; on the other hand, it uses habitat quality models, habitat risk assessment models, granular back-inference methods, minimum cumulative resistance models, and circuit theory to construct a regional ecological security pattern; the combination of these two methods forms a complete and feasible multi-scale, multi-level key area identification technology system for ecological restoration; finally, the three selected counties are used as demonstration units to carry out integrated ecological restoration demonstrations of mountains, water, forests, fields, lakes, and grasslands, and establish an ecological restoration demonstration technology system. This invention can provide methodological reference and technical support for improving the effectiveness of land space ecological restoration and promoting the scientific preparation of land space ecological restoration plans.

[0138] This embodiment selects three typical counties with ecological problems—Hanyuan County, Baoxing County, and Miyi County—as the study area. Using technologies such as RS and GIS, it integrates and consolidates data on land space and ecological environment elements. It explores the degree of social-ecological coupling and coordination within the study area, elucidating the spatiotemporal evolution characteristics and interaction mechanisms of ecological space. It evaluates the ecological environment status, ecological function importance, and vulnerability of the province's land space, establishes a critical evaluation model for complex systems, identifies areas with ecological degradation and ecological function decline, and completes the identification technology for key ecological restoration areas by constructing a regional ecological security pattern. It also identifies key ecological restoration areas within the three counties, conducts ecological restoration demonstrations in these key areas, implements land space ecological restoration work, and ultimately forms a complete ecological restoration demonstration technology system.

[0139] 2. Experiment Content

[0140] (1) Research on Multi-Source Data Integration of Territorial Spatial Data

[0141] This invention utilizes multiple methods and channels, such as website queries, map data, statistical yearbooks, and field measurements, to acquire basic geographic information data (e.g., DEM, DOM, DLG, DRG, national geographic census data, geological survey data, etc.). Through multi-scale target matching, multi-scale storage and indexing, and scale transformation, it integrates multi-source, multi-scale spatial data to achieve logical or physical organic centralization of multi-source spatial data in terms of spatial scale.

[0142] (2) Analysis of regional socio-ecological coupling coordination degree and its spatiotemporal evolution and feedback mechanism

[0143] Based on the cascade framework of "elements-pattern-process-service" in national land space, this study clarifies the quantitative methods and indicators for each element of "mountains, rivers, forests, fields, lakes and grasslands," establishes a regional social-ecological function evaluation index system, adopts a coupling coordination degree model to quantitatively measure the coupling coordination degree of social-ecological functions in the study area, and conducts spatial comparison and temporal analysis using methods such as ESDA to clarify the spatial characteristics and pattern evolution characteristics of regional ecological space and explore the feedback mechanism of social-ecological functions.

[0144] (3) Research on Key Area Identification Technology for Territorial Spatial Ecological Restoration

[0145] First, evaluation models for assessing the ecological environment status, the importance of ecological functions, and the vulnerability of ecological functions were constructed and evaluated sequentially. Based on this, areas of ecological degradation, areas of important ecological functions, and areas of ecological vulnerability were identified, serving as the basis for identifying key areas for ecological restoration of national land space. Second, using methods such as habitat quality models, habitat risk assessment models, granular back-calculation methods, minimum cumulative resistance models, and circuit theory, a regional ecological security pattern was constructed, and ecological "pinch points," ecological obstacle points, and ecological fault points were diagnosed. Ultimately, a multi-scale, multi-level technical system for identifying key areas for ecological restoration was formed, and key areas for ecological restoration of national land space in Hanyuan, Lushan, and Miyi counties were identified and determined.

[0146] (4) Construction of ecological restoration demonstration technology system

[0147] Hanyuan, Lushan, and Miyi were established as demonstration units for ecological restoration of national land space. Integrated ecological restoration demonstrations of mountains, water, forests, fields, lakes, and grasslands were carried out in key areas of national land space ecological restoration identified in the three counties, and a set of innovative, universal, and scientific ecological restoration demonstration technology systems were established.

[0148] 3. Key Technologies

[0149] (1) Multi-source spatial data scale integration research is the process of integrating and unifying different types of data at a spatial scale. It is one of the research challenges of spatial data integration and also the foundation for subsequent research on land space restoration technology. It is related to the selection of quantitative methods for various elements of "mountains, rivers, forests, fields, lakes and grasslands" and the establishment of various evaluation models. Therefore, successfully collecting various basic data through RS, GIS and other methods, and using various methods and software to complete the integration and management of multi-source and multi-scale land space data has become the first key technical point that needs to be overcome in this invention.

[0150] (2) In the past, the evaluation and analysis of the ecological environment often focused on one or a few ecosystem elements (such as animals, plants, microorganisms, etc.) or a certain type of ecosystem (such as mines, rivers, wetlands, etc.), failing to cover all elements of natural resources such as mountains, rivers, forests, fields, lakes, and grasslands, and even less considering the effects and impacts of human activities. That is, the social-ecological function evaluation and coupling degree analysis were not fully carried out. Therefore, in this invention, how to conduct social-ecological coupling research based on the cascade framework of "elements-patterns-processes-services" in national land space, and explore the spatiotemporal evolution law and feedback mechanism of ecological space, is the focus and difficulty of this invention.

[0151] (3) Identification of key areas for ecological restoration of national land space is the foundation for establishing a technical system for ecological restoration of national land space and formulating a route plan for ecological restoration of national land space. Therefore, how to construct a multi-scale, multi-level key area identification technical system for ecological restoration based on the integrity and structural connectivity of the ecosystem, and diagnose and identify key areas for ecological restoration of national land space within the region, becomes a key technology that this invention needs to solve.

[0152] 4. Application Scheme

[0153] (1) Identify a technical method that can achieve multi-source, multi-scale, and multi-element land and space data integration and management, which can be applied and promoted in the future when collecting, sorting, analyzing, and summarizing land and space related data.

[0154] (2) Establish a regional social-ecological function evaluation model based on the cascade framework of "elements-pattern-process-service" in national land space, carry out social-ecological coupling research, and explore the spatiotemporal evolution law and feedback mechanism of ecological space.

[0155] (3) Establish a complex system key evaluation model based on ecological environment status evaluation, ecological function importance evaluation and ecological function vulnerability evaluation. On this basis, combined with the regional ecological security pattern research, construct a multi-scale, multi-level key area identification technology system for ecological restoration, and apply and promote it to Hanyuan, Lushan and Miyi counties.

[0156] (4) Taking Hanyuan, Lushan and Miyi counties as demonstration units, we will carry out integrated ecological restoration demonstration of mountains, water, forests, fields, lakes and grasslands, and establish a set of ecological restoration demonstration technology system, which can provide support and guidance for the implementation of ecological restoration of land space in various places.

[0157] 5. Project Innovation

[0158] 5.1 Theoretical Innovation

[0159] Early domestic ecological restoration work focused on polluted single ecological elements, often manifesting as specific mountains, rivers, forests, fields, lakes, or grasslands. A "case-by-case" approach was the guiding principle for most early ecological restoration projects. However, the requirements for ecological restoration of national land space in the new era are no longer merely about improving the quality of a single ecosystem, but rather about further reflecting on the relationship between social and natural systems to achieve coordinated and sustainable development between humans and the land. This invention, using a socio-ecological system coupling perspective, provides a new approach to current national land space ecological restoration and achieves certain innovations in theoretical methodology. Furthermore, the study of socio-ecological coupling and feedback mechanisms is based on the cascading framework of "elements-patterns-processes-services" in national land space. Compared to previous related studies, this undoubtedly provides clearer quantitative methods and indicators, pointing more directly to the source pathways of ecological space optimization, and providing prerequisites for the scientific advancement of ecological security pattern restoration.

[0160] 5.2 Application Innovation

[0161] This invention identifies key areas for ecological restoration of national land space through three main steps: First, it evaluates and analyzes the ecological environment status, ecological function importance, and vulnerability of the region in sequence to identify areas of ecological degradation, areas of important ecological function, and areas of ecological vulnerability, laying the foundation for identifying key areas for ecological restoration. Second, based on landscape ecology principles, it constructs ecological corridors and diagnoses ecological "pinch points," ecological barrier points, and ecological breakpoints by considering habitat quality and risk and incorporating circuit theory. Finally, it compares and combines the results of the first two parts to jointly determine and identify key areas for ecological restoration of national land space in the study area. Compared with other studies that rely on a single method for identification, this project analyzes the identification of key areas for ecological restoration of national land space from two perspectives, employing a two-pronged approach that complements each other, making the research results more accurate, reliable, and scientific.

[0162] 5.3 Technological Innovation

[0163] This invention features several technological innovations, such as multi-source data integration technology for territorial space, social-ecological coupling correlation technology, key area identification technology for ecological restoration, and ecological restoration demonstration technology. These provide scientific support for carrying out the protection and restoration of the ecosystem of mountains, rivers, forests, fields, lakes, and grasslands, while also providing advanced technological guarantees for promoting the high-level positioning, high-quality advancement, and high-quality construction of territorial space ecosystem protection and restoration, and for overall ecological protection, systematic restoration, and comprehensive management.

[0164] 6. Project application prospects and expected economic and social benefits of project products

[0165] 6.1 Application Prospects

[0166] In the process of comprehensively building an ecological civilization in my country, territorial spatial ecological restoration plays a crucial role in improving ecological quality and promoting sustainable social development. Currently, the ecological environment in many regions of my country is severely damaged; therefore, territorial spatial ecological restoration technology is needed to thoroughly improve this environment. The research results of this invention can provide multiple innovative and feasible indicator evaluation systems and technical implementation systems for territorial spatial ecological restoration. This is of great significance and application value for scientifically understanding territorial spatial ecological restoration, correctly grasping the logical approach to restoration work, guiding the academic community to continuously innovate and develop related technologies, and promoting the comprehensive improvement of ecological and environmental benefits.

[0167] 6.2 Economic and Social Benefits

[0168] The multi-source data integration technology, multi-scale and multi-level key area identification technology for ecological restoration, and ecological restoration demonstration technology developed in this invention can be widely applied to the ecological restoration of the entire territory and all elements of national land space, as well as the restoration and management of specific ecosystems such as mines, watersheds, and wetlands. The promotion and application of these technologies can overcome the current shortcomings in national land space ecological restoration, such as small scope of restoration, limited elements included, and outdated technologies, and avoid other economic and social problems caused by these shortcomings, such as resource waste, low input-output efficiency, and inadequate policy implementation. In summary, the results of this invention can strengthen national land space ecological security.

[0169] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0170] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented entirely or partially as a computer program product, the computer program product includes one or more computer instructions. When the computer program instructions are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of the present invention are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., a solid-state drive (SSD)).

[0171] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications, equivalent substitutions, and improvements made by those skilled in the art within the scope of the technology disclosed in the present invention, and within the spirit and principles of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A key evaluation system for complex systems in territorial spatial ecological restoration, characterized in that, The complex and systematic key evaluation system for territorial space ecological restoration includes: The basic geographic data acquisition module is connected to the central control module and is used to acquire basic geographic information data of the area to be evaluated through data acquisition equipment using website queries, map data, statistical yearbooks and field measurement methods. The multi-source spatial data integration module is connected to the central control module. It is used to integrate the acquired multi-source and multi-scale spatial data through the data integration program using multi-scale target matching, multi-scale storage and indexing, and scale transformation methods to obtain a multi-source spatial dataset. The central control module is connected to the basic geographic data acquisition module, the multi-source spatial data integration module, the evaluation index system construction module, and the coupling coordination degree calculation module. It is used to coordinate and control the normal operation of each module of the complex and systematic key evaluation system for ecological restoration of national land space through the central processor. The evaluation indicator system construction module is connected to the central control module. It is used to clarify the quantitative methods and indicators of each element of "mountains, rivers, forests, fields, lakes and grasslands" based on the "element-pattern-process-service" cascade framework of national land space through the system construction program, and to establish a regional ecological-social-economic function evaluation indicator system. The coupling coordination degree calculation module, connected to the central control module, is used to quantitatively calculate the coupling coordination degree of ecological-social-economic functions within the area to be evaluated using a coupling coordination degree model through a calculation program. This includes: Obtain various indicator data from the three subsystems of ecology, society, and economy; The grey relational degree formula is used to calculate the grey relational degree between each type of indicator in the three subsystems of ecology, society and economy and the land use structure entropy based on the obtained indicator data. The development index of each subsystem is calculated based on the grey relational degree using the development index equation, and the change curve of the development index of each subsystem is fitted according to the year. The coupling coordination degree of ecological, social and economic functions in the area to be evaluated is quantitatively measured based on the development index of the three subsystems using the coupling coordination degree calculation formula. The formula for calculating the coupling coordination degree is as follows: C = 3{(U1·U2·U3) / [(U1+U2)(U1+U3)(U2·U3)]}1 / 3; In the formula, U1, U2, and U3 represent the development indices of the economic, social, and ecological subsystems in a certain year, respectively; The aforementioned complex and systematic key evaluation system for territorial space ecological restoration also includes: The central control module is connected to the regional ecological space feature extraction module, the key area identification and evaluation module, the ecological restoration demonstration system construction module, the data cloud storage module, and the update and display module. It is used to coordinate and control the normal operation of each module of the complex and systematic key evaluation system for ecological restoration of national land space through the central processor. The regional ecological space feature extraction module, connected to the central control module, is used to perform spatial comparison and temporal analysis of the region to be evaluated using the ESDA method, clarify the spatial characteristics and pattern evolution characteristics of the regional ecological space, and determine the feedback mechanism of ecological-social-economic functions. The key area identification and evaluation module is connected to the central control module. It is used to construct evaluation models and regional ecological security patterns through the identification and evaluation program, and to conduct key area identification, evaluation and analysis in sequence. The ecological restoration demonstration system construction module is connected to the central control module. It is used to establish ecological restoration demonstration units for territorial space through the demonstration system construction program, carry out integrated ecological restoration demonstrations in the identified key areas for ecological restoration of territorial space, and integrate and establish an ecological restoration demonstration technology system. The data cloud storage module, connected to the central control module, is used to store the basic geographic information data, multi-source spatial datasets, regional ecological-social-economic function evaluation index system, coupling coordination degree of ecological-social-economic functions in the region to be evaluated, spatial characteristics and pattern evolution characteristics of regional ecological space, and key area identification and evaluation information acquired through the cloud database server. The update display module is connected to the central control module and is used to update and display real-time data on the acquired basic geographic information data, multi-source spatial datasets, regional ecological-social-economic function evaluation index system, coupling coordination degree of ecological-social-economic functions in the region to be evaluated, spatial characteristics and pattern evolution characteristics of regional ecological space, and key area identification and evaluation information within the display screen. The specific process by which the data cloud storage module stores data is as follows: The basic geographic information data, multi-source spatial datasets, regional ecological-social-economic function evaluation index system, coupling coordination degree of ecological-social-economic functions in the region to be evaluated, spatial characteristics and pattern evolution characteristics of regional ecological space, and key area identification and evaluation information are packaged and transmitted to the cloud server through communication equipment. The cloud server performs a hash calculation on the key features of the data to obtain a number; the cloud server performs a modulo operation on the obtained number and the number of servers to obtain the server number; and stores the corresponding data on the corresponding cloud server.

2. The complex and systematic key evaluation system for territorial space ecological restoration as described in claim 1, characterized in that, The ecological restoration demonstration system construction module establishes a national spatial ecological restoration demonstration unit, carries out integrated ecological restoration demonstrations in the identified key areas for national spatial ecological restoration, and integrates and establishes an ecological restoration demonstration technology system. The specific process is as follows: First, we need to identify the ecological source areas to form the basis for building an ecological security pattern. Then, based on existing empirical data, ecological resistance is constructed, and corresponding resistance values ​​are assigned according to the ecosystem service value per unit area of ​​land use type. Secondly, an ecological resistance surface is constructed using the minimum cumulative resistance model, and ecological corridors and barrier zones are identified using the random walk property of charge. Finally, establish ecological restoration zones with a small ecological security framework.

3. The complex and systematic key evaluation system for territorial space ecological restoration as described in claim 2, characterized in that, The requirements for identifying the ecological source area are: good ecological landscape connectivity, strong sensitivity to ecological factors, and ecosystem services. The model for identifying ecological corridors using the random walk property of charge is as follows: ； Wherein, MCR is the minimum cumulative resistance value, j is the ecological source area, Dij is the spatial distance of the basal plane i traversed from the ecological source area j to a certain point in space, and Ri is the basic resistance of patch i to ecological processes or species movement.

4. The complex and systematic key evaluation system for territorial space ecological restoration as described in claim 2, characterized in that, The specific process of identifying obstacle regions using the random walk property of charges is as follows: Based on ecological corridors, corresponding moving windows are established to detect potential areas that hinder ecological processes; at the same time, the connectivity value restored per unit distance represents the impact factor of the obstacle area. The specific process for establishing ecological restoration zones with a small ecological security pattern is as follows: Ecological source areas, obstacle areas, and ecological resistance surfaces were selected for normalization processing within a certain time period, taking into account ecological restoration needs, the difficulty of ecological processes, and the characteristics of ecological elements. While ensuring the preservation of the ecological source area, the barrier area and ecological resistance surface after naturalization are superimposed to form a zoning index, and the natural discontinuity method is used to zonify the ecological restoration.

5. The complex systemic key evaluation system for territorial space ecological restoration as described in claim 4, characterized in that, The specific partition index is: ； Among them, EPS zoning index, ISi is the value of raster cell i in the obstacle area, ISmin is the minimum value in the obstacle area, ISmax is the maximum value in the obstacle area, R is the value of raster cell i in the minimum cumulative resistance surface, Rmin is the minimum value in the resistance surface, Rmax is the maximum value in the resistance surface, and n is the number of years.

6. The complex and systematic key evaluation system for territorial space ecological restoration as described in claim 1, characterized in that, The basic geographic information data in the basic geographic data acquisition module includes DEM data, DOM data, DLG data, DRG data, national geographic census data, and geological survey data.

7. The complex and systematic key evaluation system for territorial space ecological restoration as described in claim 1, characterized in that, The multi-source spatial data integration module integrates the acquired multi-source, multi-scale spatial data through a data integration program using multi-scale target matching, multi-scale storage and indexing, and scale transformation methods, including: (1) Receive external application requests using the application parser mounted on the multi-source spatial data integration module, create a data integration task package, and add a data packet header; (2) Based on the task sequence number header information in the data integration task package, create a data source list header and add the various parameters and attributes of the data source in the data source list header; (3) Use multi-scale target matching, multi-scale storage and indexing and scale transformation methods to integrate multi-source and multi-scale spatial data based on data attribute information to generate multi-source spatial datasets; The data packet header includes a task sequence header, a data item set header, a data integration attribute header, a data integration range header, and a condition limitation information header.

8. The complex systemic key evaluation system for territorial space ecological restoration as described in claim 1, characterized in that, The key area identification and evaluation module constructs evaluation models and regional ecological security patterns using an identification and evaluation program, and then sequentially performs key area identification and evaluation analysis, including: (1) Construct evaluation models for ecological environment status assessment, ecological function importance assessment and ecological function vulnerability assessment respectively, and conduct evaluation and analysis in sequence; (2) Based on the evaluation model, determine the ecological environment deterioration zone, the ecological function important zone and the ecological space fragile zone, as the basis for identifying the key zone for ecological restoration of national land space; (3) By constructing a regional ecological security system, diagnosing ecological pinch points, ecological barrier points and ecological fault points, forming a multi-scale and multi-level key area identification technology system for ecological restoration, and identifying and determining key areas for ecological restoration of national land space respectively; The methods for constructing a regional ecological security system include habitat quality models, habitat risk assessment models, granular back-calculation methods, minimum cumulative resistance models, and circuit theory methods.

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