Territorial space planning decision support method based on regional ecosystem

Abstract

The invention relates to the technical field of territorial planning, in particular to a territorial space planning decision support method based on a regional ecosystem. The method comprises the following steps: acquiring comprehensive data of each region between ecological systems; obtaining the importance degree of each region according to the comprehensive data of each region between the ecological systems; the importance degree of each region refers to the importance degree of each region serving as an ecological corridor; and taking the importance degree of each region as an influence factor when the region participates in territorial space planning decision, and carrying out territorial space planning decision support. According to the method, the importance of different regions in the ecological corridor is analyzed and evaluated based on the comprehensive data of each region of the regional ecological system, and the evaluation result is applied to land space planning decision, so that coordination and unification of ecological protection and regional development are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of land planning, and in particular to a land space planning decision support method based on regional ecosystem. Background Art

[0002] With the continuous development of human society and economy, the utilization and protection of land resources have become increasingly important issues facing the world. Especially in the process of national land space planning, how to balance the relationship between economic development and ecological environmental protection has become the key to achieving sustainable development. As the basis of human living environment, the health of the ecosystem directly affects important ecological service functions such as species diversity, water source protection, and soil conservation. However, in the current national land space planning, the ecological connection between different ecosystem areas is often not fully considered, especially the importance of ecological corridors. Ecological corridors refer to key areas that connect different habitats between ecosystems and provide species migration paths and ecological flow spaces. Although ecological corridors are crucial to the maintenance of ecological stability and species diversity, existing planning methods mostly focus on the development and protection of local areas, lack of comprehensive evaluation and overall planning of ecological corridors, resulting in the disconnection between ecosystems and the degradation of ecological functions.

[0003] When considering ecological factors, current national land space planning technology mainly relies on the analysis of single ecological regions. It lacks a comprehensive assessment of the interconnections between ecosystems and the role of ecological corridors, making it difficult to effectively identify key ecological corridor areas in ecosystems. As a result, the important role of these areas in connecting species migration and ecological mobility may be neglected or underestimated in planning. Summary of the invention

[0004] In order to solve the technical problem of how to effectively evaluate the impact of various regional ecological factors on regional ecological corridors during national land space planning and effectively consider the ecological connection between ecosystems, the purpose of the present invention is to provide a national land space planning decision support method based on regional ecosystems. The technical scheme adopted is as follows: A land space planning decision support method based on regional ecosystems, the method comprising: obtaining comprehensive data of various regions between ecosystems; obtaining the importance of each region based on the comprehensive data of various regions between the ecosystems; the importance of each region refers to the importance of each region as an ecological corridor; and using the importance of each region as an influencing factor when the region participates in land space planning decisions to provide land space planning decision support.

[0005] Based on the comprehensive data of various regions of the regional ecosystem, namely dynamic data and multi-dimensional parameters, this invention analyzes and evaluates the importance of different regions in the ecological corridor, and effectively applies this evaluation result to national land space planning decision-making to achieve the coordination and unity of ecological protection and regional development.

[0006] Further, according to the comprehensive data of each area between the ecosystems, the importance of each area is obtained; specifically including: according to the comprehensive data of each area between the ecosystems The comprehensive data of the region is obtained the ecological integrity of the region; The ecological integrity of the region and The environmental stability of the region when an abnormality occurs is obtained. The importance of the area as an ecological corridor; A region is any region among the regions of the ecosystem. is a natural number; traverse each area between ecosystems and obtain the importance of each area.

[0007] Furthermore, from the From the comprehensive data of each region, the mutation points of all moments in the data of each dimension are screened out; and after analyzing and merging the mutation points of all moments, the first Several mutation point groups in the region; according to The number of mutation point groups in each region, and Region The sensitivity of the ecosystem to the negative impact of the mutation point group when an abnormality occurs is obtained. The environmental stability of each region when an abnormality occurs; Region The mutation point group is Any mutation point group in a region, is a natural number.

[0008] Furthermore, the mutation point is the moment when the species or quantity changes within a threshold range; for each dimension of historical data in each area, the mutation points where the threshold range changes are obtained by the Pelt algorithm; for the mutation points at all times in the environment, windows of a predetermined number of times and lengths are constructed as the center for data collection. When there is an overlap between time windows, the corresponding mutation points are merged into a mutation point group, and a single mutation point is treated as a separate mutation point group; wherein the dimensions include temperature, humidity and species richness.

[0009] Furthermore, according to Region The difference in species richness before and after the abnormality of the mutation point group, Region The time difference between the moment of abnormality and the moment of restoration of stability of the mutation point group, and the Region The number of mutation points in the mutation point group is obtained. Region The sensitivity of each mutation point group to the negative impacts on the ecosystem when an abnormality occurs.

[0010] Furthermore, for the For each mutation point group in an area, a sliding window of a predetermined length of collection times is constructed based on the species richness when the last mutation point appears, and the slope of the species richness in the window is calculated. When the number of positive and negative fluctuations of the slope is greater than the threshold, the corresponding time point is recorded as the moment when the mutation point group recovers and stabilizes.

[0011] Furthermore, when the sign of the slope is inconsistent with the previous one, it is recorded as the number of positive and negative fluctuations of the slope.

[0012] Further, according to the ecosystem The comprehensive data of the region is obtained The ecological integrity of the region; specifically including: The comprehensive data for each region include The vegetation coverage of the area and The water supply situation in each region; The vegetation coverage of the area and The water supply situation in each region is as follows: the ecological integrity of a region.

[0013] Furthermore, based on the comprehensive data of each region among the ecosystems, the initial importance of each region is obtained; then the initial importance of each region is adjusted to obtain the final importance of each region; the final importance of each region is used as an influencing factor when the region participates in national land space planning decisions.

[0014] Further, the initial importance of each region is adjusted to obtain the final importance of each region; specifically, the following steps are performed: The number of neighboring regions of the region, and the Region The initial importance of the neighborhood area is obtained The final importance of the region; The neighborhood area is Any one of all neighboring regions of a region; is a natural number; A region is any region among the regions of the ecosystem. is a natural number.

[0015] The present invention has the following beneficial effects: Based on the comprehensive data of various regions of the regional ecosystem, this paper analyzes and evaluates the importance of different regions in the ecological corridor, and effectively applies this evaluation result to national land space planning decision-making to achieve the coordination and unity of ecological protection and regional development.

[0016] This invention provides a scientific basis for national land space planning by comprehensively evaluating the regional ecological importance and ecological integrity, effectively protecting the connectivity of the ecosystem, and promoting the stability of the ecological environment and species diversity.

[0017] The present invention evaluates the resilience and stability of ecological corridors through dynamic data analysis and historical data comparison, provides more accurate decision support, and ensures that ecological protection and regional development are coordinated. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present invention or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A flow chart of a land space planning decision support method based on regional ecosystem provided by an embodiment of the present invention; Figure 2 A flow chart of a land space planning decision support method based on regional ecosystem provided in another embodiment of the present invention. DETAILED DESCRIPTION

[0020] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation method, structure, characteristics and effects of a land space planning decision support method based on a regional ecosystem proposed by the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "another embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures or characteristics in one or more embodiments may be combined in any suitable form.

[0021] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0022] The following is a detailed description of a specific scheme of a land space planning decision support method based on regional ecosystem provided by the present invention in conjunction with the accompanying drawings.

[0023] See also Figure 1 , which shows a flow chart of a land space planning decision support method based on regional ecosystem provided by an embodiment of the present invention. The method of the embodiment of the present invention is as follows: First, obtain comprehensive data of each region between ecosystems. Comprehensive data refers to the dynamic data and multi-dimensional parameters of regional ecosystems, including: regional vegetation coverage, soil moisture, temperature and other environmental parameters, species (such as migratory birds, butterflies, etc.) migration path richness (species and number of each species), topographic administrative divisions in different regions, land use, hydrological data and other information.

[0024] Among them, the importance of each area is obtained based on the comprehensive data of each area between ecosystems; the importance of each area in the embodiment of the present invention refers to the importance of each area as an ecological corridor, and the decision support for national land space planning is carried out. For example, is a natural number; the following describes how to obtain its importance.

[0025] From From the comprehensive data of each region, the mutation points of all moments in the data of each dimension are screened out; and after analyzing and merging the mutation points of all moments, the first Several mutation point groups in a region.

[0026] The mutation point is the moment when the species or quantity changes within the threshold range; for each dimension of historical data in each area, the mutation point where the threshold range changes is obtained by the Pelt algorithm. In the embodiment of the present invention, the respective threshold ranges can be set according to the actual ecological scene and the specific conditions of different species. The point beyond the set threshold range is the mutation point.

[0027] For all mutation points in the environment at all times, we take them as the center and build windows of data collection size with a predetermined number of times and durations. When there is overlap between time windows, the corresponding mutation points are merged into a mutation point group. For a single mutation point, it is treated as a mutation point group. The dimensions include temperature, humidity and species richness.

[0028] According to Region The difference in species richness before and after the abnormality of the mutation point group, Region The time difference between the moment of abnormality and the moment of restoration of stability of the mutation point group, and the Region The number of mutation points in the mutation point group is obtained. Region The sensitivity of each mutation point group to the negative impacts on the ecosystem when an abnormality occurs.

[0029] For For each mutation point group in a region, a sliding window with a predetermined number of collection times is constructed based on the species richness when the last mutation point appears, and the slope of the species richness in the window is calculated. When the number of positive and negative fluctuations of the slope is greater than the number threshold, the corresponding time point is recorded as the moment when the mutation point group recovers and stabilizes. Among them, when the slope sign is inconsistent with the previous one, it is recorded as the number of positive and negative fluctuations of the slope once.

[0030] According to The number of mutation point groups in each region, and Region The sensitivity of the ecosystem to the negative impact of the mutation point group when an abnormality occurs is obtained. The environmental stability of each region when an abnormality occurs. Region The mutation point group is Any mutation point group in a region, is a natural number.

[0031] In the embodiment of the present invention, the ecosystem The comprehensive data for each region includes The vegetation coverage of the area and The water supply situation in each region; The vegetation coverage of the area and The water supply situation in each region is the ecological integrity of a region.

[0032] According to The ecological integrity of the region and The environmental stability of the region when an abnormality occurs is obtained. The importance of each area as an ecological corridor.

[0033] Based on the comprehensive data of each region in the ecosystem, the initial importance of each region is obtained, and then the initial importance of each region is adjusted to obtain the final importance of each region.

[0034] According to The number of neighboring regions of the region, and the Region The initial importance of the neighborhood area is obtained The final importance of the region. The neighborhood area is Any one of all neighboring regions of a region; is a natural number. A region is any region among the regions of the ecosystem. is a natural number.

[0035] Then, according to the above method, each area among the ecosystems is traversed to obtain the importance of each area.

[0036] Finally, the final importance of each region is used as an influencing factor when the region participates in national land space planning decision-making, and national land space planning decision-making support is provided.

[0037] When considering ecological factors, current national land space planning technology mainly relies on the analysis of single ecological regions. It lacks a comprehensive assessment of the interconnections between ecosystems and the role of ecological corridors, making it difficult to effectively identify key ecological corridor areas in ecosystems. As a result, the important role of these areas in connecting species migration and ecological mobility may be neglected or underestimated in planning.

[0038] How to accurately evaluate the importance of different regions in the ecological corridor based on the dynamic data and multi-dimensional parameters of the regional ecosystem, and effectively apply the evaluation results to national land space planning decisions to achieve the coordination and unity of ecological protection and regional development.

[0039] See also Figure 2 , which shows a flow chart of a land space planning decision support method based on regional ecosystem provided by another possible embodiment of the present invention.

[0040] The embodiment of the present invention evaluates the importance of each area in the ecological corridor by analyzing the ecological integrity, species migration paths and resilience to environmental changes of different ecosystem areas, thereby providing scientific decision-making support for national land space planning.

[0041] The specific application scenario targeted by the embodiment of the present invention is the land space planning process involving complex ecological environments and various types of ecosystems, especially the scenario that needs to balance ecological protection and regional development needs. With the advancement of urbanization and the increasing impact of human activities on natural ecosystems, how to protect important ecological areas, optimize the structure of ecological corridors and improve the sustainability of ecosystems when conducting large-scale land space planning has become an urgent problem to be solved. Especially in terms of cross-regional ecological connectivity, species migration paths and ecological stability analysis, existing planning methods are often difficult to accurately assess the ecological relationship and importance between regions. Therefore, it is necessary to accurately assess the ecological functions of the core areas and buffer areas of the ecological corridors, provide more scientific and precise guidance for ecological protection and land space development, and promote a win-win situation for ecological protection and regional development.

[0042] Data collection in different areas between ecosystems. For each area between ecosystems (natural areas that are less affected by human living areas and industrial areas), remote sensing technology, geographic information system (GIS, Geographic Information System), species migration data, etc. are used to obtain various data in each area of ​​the ecosystem and its surroundings when making national land planning decisions, including regional vegetation coverage, soil moisture, temperature and other environmental parameters, species (such as migratory birds, butterflies, etc.) The richness of migration paths (species and number of each species), topographic administrative divisions in different regions, land use, hydrological data and other information.

[0043] The data of various dimensions obtained are standardized and spatially processed to ensure that each data can be used for subsequent calculations and that data from different regions can be matched to corresponding geographic locations.

[0044] The ecological stability of each region is determined by calculating the ecological integrity of each region, including environmental parameters such as vegetation coverage and water sufficiency. Then, the historical data of the region is analyzed to evaluate the impact of environmental changes on species richness, with particular attention to the region's self-regulation ability and recovery speed, in order to assess its importance as the core area of ​​the ecological corridor. Finally, the connectivity and ecological functions of the region with adjacent areas are considered to further adjust its importance, especially those "bridge" areas between multiple core areas. By combining these assessments, the role and importance of each region in the ecological corridor are determined, providing a scientific basis for subsequent national land space planning and helping to achieve a balance between ecological protection and reasonable development.

[0045] a. Calculate the ecological integrity of each area.

[0046] When planning the national land space for areas between ecosystems, it is necessary to consider the survival of species when they communicate and migrate between ecosystems in order to ensure the connection between ecosystems. The most important thing to consider during migration is food and water. The more abundant the food and water, the more species will prefer to choose this area as their migration path. These areas become spatial corridors for species migration between ecosystems.

[0047] In the ecological corridor structure, the area is divided into a core area and a buffer zone. The core area is the area least disturbed by human activities, with a relatively superior ecological environment, high ecological stability, and suitable for species to inhabit. The buffer zone allows limited human activities, and the ecological environment is somewhat different from that of the core area, but ecological mobility still needs to be maintained. For the core area of ​​the ecological corridor, the ecological relationship between this area and the surrounding ecosystems (such as forests, wetlands, grasslands, etc.) is relatively close, so its environment is more similar to the surrounding ecosystems. The buffer area is a buffer zone for species during migration, so the ecological integrity of its ecosystem is lower. Therefore, the ecological integrity of each area can be obtained by judging the vegetation coverage and water sufficiency in each area: in, For the The ecological integrity of a region. The higher the ecological integrity of a region, the more biased the species will be in migrating, and the greater the possibility that the region belongs to the core area. For the The vegetation coverage of an area For the The water availability in the region; The larger the value, the more abundant the food and water resources in the area, the more favorable the environment for species survival, and the greater the ecological integrity; norm represents a linear normalization function, which is used to limit the value range of ecological integrity to between 0 and 1.

[0048] b. Based on the impact of historical data of different dimensions in the region on regional species richness, the importance of each region as an ecological corridor is obtained.

[0049] When species in different ecosystems migrate through the area in the middle of the ecosystem (ecological corridor), the ecological stability of the ecological corridor (hereinafter referred to as environmental stability) is relatively more important. For each region, compared with the ecosystem, the species richness and biodiversity in the region and the living environment of the species are relatively poor. Therefore, when the environment changes, its resistance to environmental changes is also poor. When the vegetation coverage area of ​​a region decreases abnormally, the food source in the region will be relatively reduced. Therefore, when species migrate, the difficulty of their survival in the region will increase, resulting in a decrease in the number of migrations through the region and a relatively reduced change in the richness of its species.

[0050] However, nature has the ability to self-regulate, and has a certain ability to recover from environmental impacts. For a region, when environmental changes occur, the smaller the impact of the change on the region, the less sensitive the region is to environmental changes; when species diversity and richness decrease due to environmental changes, the speed of recovery is different, indicating that the region's self-regulatory ability is also different. The faster the recovery, the stronger the region's ability to regulate and recover from environmental changes, the more species tend to choose this region when migrating, and the greater the importance of this region as an ecological corridor.

[0051] Therefore, the importance of each area as an ecological corridor can be obtained: Find the mutation points in the data of each dimension, that is, the moment when it changes. The mutation point is the moment when the species or quantity suddenly changes greatly, similar to a turning point; for each dimension of historical data in each area (such as temperature, humidity, species richness, etc.), the Pelt (Pruned Exact Linear Time) algorithm is used to obtain the mutation points where the changes occur.

[0052] In the natural environment, each dimension is not independent of each other, but is often interdependent and mutually influential. It is possible that they are caused by the same environmental factor, so they need to be merged to comprehensively analyze each mutation point, so that the entire ecosystem can be analyzed clearly. For mutation points at all times in the environment, each is taken as the center, and a window of 10 data collection times is constructed. When there is overlap between time windows, the corresponding mutation points are merged into a mutation point group, and a single mutation point is treated as a mutation point group.

[0053] For each mutation point group, a sliding window with a duration of 20 acquisitions is constructed based on the species richness when the last mutation point appears. By calculating the slope of the species richness in the window, when the number of positive and negative fluctuations of the slope is greater than 15 times (one time is counted if the sign of the slope is inconsistent with the previous time), the corresponding time point is recorded as the recovery and stability time point of the mutation point group. Since species richness is constantly fluctuating, but when changes in the environment cause its species richness to continue to increase or decrease, if the species richness in the window changes more dramatically, it can be considered that the species richness change in the area has ended and it tends to be in a dynamic stability.

[0054] For each mutation point group, by analyzing the changes in species richness before and after each anomaly and the duration of the anomaly, we can determine the sensitivity of the ecosystem in the area to the negative impact of each anomaly: in, For the Region The sensitivity of each mutation point group to the negative impacts on the ecosystem when an abnormality occurs; For the Region The difference in species richness before and after the abnormality of the mutation point group, For the Region The time difference between the moment when the abnormality appears and the moment when the stability is restored for each mutation point group, For the Region The number of mutation points in a mutation point group. Since there are mutation points, there will be mutation groups; if there are no mutation points, then the corresponding mutation point group does not exist, so the first Region The number of mutation points in a mutation point group There is no zero probability.

[0055] Get the environmental stability of all mutation point groups in each region when anomalies occur: in, For the The environmental stability of each region when an abnormality occurs, For the The number of mutation point groups in each region, For the Region The sensitivity of each mutation point group to the negative impacts on the ecosystem when an abnormality occurs.

[0056] By combining the environmental stability of each area in each mutation point group when an abnormality occurs with the ecological integrity of each area, the importance of the current area as the core area of ​​the ecological corridor is obtained: in, For the The importance of each area as the core area of ​​the ecological corridor. For the The ecological integrity of a region For the The environmental stability of a region when an anomaly occurs, norm represents a linear normalization function, which is used to limit the value range of importance to between 0 and 1.

[0057] c. Adjust the importance of the area based on the importance of the adjacent areas.

[0058] The regional importance of the ecological corridor depends not only on the ecological quality (ecological integrity) and environmental stability when abnormalities occur, but also on the relative position and role of each area in the corridor structure. If some areas are located between the core area and other important areas, and have a high degree of connection with important areas, and play a bridging role in the communication between ecosystems and the migration of species, the greater the connectivity of the area, the greater the impact on the ecology of the ecological corridor when abnormalities occur in the area, and therefore the greater the ecological importance of the area to the ecological corridor.

[0059] The ecological green core is the connection or transit station between ecosystems (that is, the core area of ​​the ecological corridor), and the regional ecological corridor is the buffer zone of the ecological corridor. The more connections each core area of ​​the ecological corridor has with other core areas, the greater the importance of the other connected areas, and the greater the importance of the area in the core area.

[0060] Therefore, the importance of each region can be further adjusted by the degree of connection between each region and other core regions, and the adjusted importance is used as the final importance: For each region, its importance is corrected by the importance of other regions connected to it, and the final importance of each region can be obtained: in, For the The final adjusted importance of each region is For the The importance of each area as the core area of ​​the ecological corridor. For the The number of neighboring regions of a region, No. Region The importance of a neighborhood area as the core area of ​​the ecological corridor.

[0061] For the The adjustment factor of the importance of a region reflects the strength of connection between the region and its neighboring areas. If a region is adjacent to multiple important core areas, it means that it plays a greater role as a "bridge" in the ecological corridor and is more important in the process of species migration. Therefore, its importance is greater in national land space planning.

[0062] According to the final importance of each area as a regional corridor, it is marked on each corresponding area in the national land space. In the subsequent national land space planning of the large area, it is necessary to consider the importance of each area as a regional corridor between ecosystems in the large area, so as to facilitate the consideration of its impact on national land planning according to the importance when planning. This is convenient for adjusting the national land planning strategy for the area in combination with other influencing parameters.

[0063] The embodiment of the present invention provides a scientific basis for national land space planning by comprehensively evaluating the ecological importance, ecological integrity and species migration paths of the region, effectively protecting the connectivity of the ecosystem, and promoting the stability and species diversity of the ecological environment. Through dynamic data analysis and historical data comparison, the resilience and stability of the ecological corridor are evaluated, providing more accurate decision support and ensuring the coordination of ecological protection and regional development.

[0064] It should be noted that the sequence of the above embodiments of the present invention is only for description and does not represent the advantages and disadvantages of the embodiments. The processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0065] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

Claims

1. A land space planning decision support method based on regional ecosystem, characterized in that: The method comprises: Obtain comprehensive data for various regions across ecosystems; According to the ecosystem The comprehensive data of the region is obtained the ecological integrity of the region; From the comprehensive data of each region, the mutation points of all moments in the data of each dimension are screened out; and after analyzing and merging the mutation points of all moments, the first Several mutation point groups in the region; according to The number of mutation point groups in each region, and Region The sensitivity of the ecosystem to the negative impact of the mutation point group when an abnormality occurs is obtained. The environmental stability of each region when an abnormality occurs; Region The mutation point group is Any mutation point group in a region, is a natural number according to the The ecological integrity of the region and The environmental stability of the region when an abnormality occurs is obtained. The importance of the area as an ecological corridor; A region is any region among the regions of the ecosystem. is a natural number; traverse each area of ​​the ecosystem and obtain the importance of each area The importance of each region is used as an influencing factor when the region participates in national land space planning decision-making, and national land space planning decision-making support is provided.

2. According to claim 1, a land space planning decision support method based on regional ecosystem is characterized in that: The mutation point is the moment when the species or quantity changes within the threshold range; for each dimension of historical data in each area, the mutation point where the threshold range changes is obtained by the Pelt algorithm; For all mutation points in the environment at all times, we take them as the center and build windows of a predetermined number of times and duration for data collection. When there is overlap between time windows, the corresponding mutation points are merged into a mutation point group. For a single mutation point, it is treated as a mutation point group separately. Among them, the dimensions include temperature, humidity and species richness.

3. The method for supporting land space planning decisions based on regional ecosystems according to claim 1 is characterized in that: According to Region The difference in species richness before and after the abnormality of the mutation point group, Region The time difference between the moment of abnormality and the moment of restoration of stability of the mutation point group, and the Region The number of mutation points in the mutation point group is obtained. Region The sensitivity of each mutation point group to the negative impacts on the ecosystem when an abnormality occurs.

4. The method for supporting land space planning decisions based on regional ecosystems according to claim 3 is characterized in that: For For each mutation point group in an area, a sliding window of a predetermined length of collection times is constructed based on the species richness when the last mutation point appears, and the slope of the species richness in the window is calculated. When the number of positive and negative fluctuations of the slope is greater than the threshold, the corresponding time point is recorded as the moment when the mutation point group recovers and stabilizes.

5. The method for supporting land space planning decisions based on regional ecosystems according to claim 4 is characterized in that: When the sign of the slope is inconsistent with the previous one, it is recorded as the number of positive and negative fluctuations of the slope.

6. The method for supporting land space planning decisions based on regional ecosystems according to claim 1 is characterized in that: According to the ecosystem The comprehensive data of the region is obtained The ecological integrity of the region; specifically including: The ecosystem The comprehensive data for each region includes The vegetation coverage of the area and The water availability in the region; According to The vegetation coverage of the area and The water supply situation in each region is as follows: the ecological integrity of a region.

7. A method for supporting land space planning decisions based on regional ecosystems according to any one of claims 1 to 6, characterized in that: Based on the comprehensive data of each region among the ecosystems, the initial importance of each region is obtained; then the initial importance of each region is adjusted to obtain the final importance of each region; the final importance of each region is used as an influencing factor when the region participates in national land space planning decisions.

8. The method for supporting land space planning decisions based on regional ecosystems according to claim 5 is characterized in that: Adjust the initial importance of each area to obtain the final importance of each area; specifically including: According to The number of neighboring regions of the region, and the Region The initial importance of the neighborhood area is obtained The ultimate importance of each region; Among them, The neighborhood area is Any one of all neighboring regions of a region; is a natural number; Among them, A region is any region among the regions of the ecosystem. is a natural number.

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