Urban green land carbon sink monitoring data abnormal fluctuation evaluation system and method

Abstract

The invention discloses an urban green land carbon sink monitoring data abnormal fluctuation evaluation system and method, and relates to the technical field of data analysis. Green land vegetation information is called from a database, and real-time green land vegetation information is extracted in combination with green land image data to update the database; performing gridding processing and periodic carbon storage change rate evaluation by combining image data to realize carbon storage region division of a green land region; performing periodic carbon sink intensity analysis and hierarchical labeling on each region; comprehensively evaluating the greenbelt carbon sequestration performance of each level, and performing periodic greenbelt carbon sequestration system stability analysis on the urban greenbelt in combination with evaluation data; updating and storing the carbon sink analysis data of each greenbelt area of the database, and outputting the real-time analysis data through a display port; accurate carbon sink data analysis of the target greenbelt is realized, stability of a greenbelt system is mastered, and the condition of lagging supervision capability of urban greenbelts in all cities in the current environment is effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of data analysis, and in particular to a system and method for evaluating abnormal fluctuations in urban green space carbon sink monitoring data. Background Art

[0002] Urban green space carbon sink monitoring is a comprehensive monitoring solution that integrates high-precision monitoring equipment, data analysis software and security protocols. It aims to monitor and evaluate the carbon sink capacity of urban green spaces in real time, ensure the accuracy, integrity and security of data, and provide decision support to help optimize urban green space management and enhance urban ecological service functions. At present, the pace of civilized city development is accelerating, and urban greening is being vigorously promoted; however, due to the mismatch between urban green space supervision capabilities and urban greening development, the urban green space system cannot be improved, and the carbon sink monitoring of green spaces is also relatively rough; conventional green space carbon sink monitoring is carried out through manual on-site green space information collection, and green space carbon sink reserve monitoring is carried out through remote monitoring. Its real-time control of the green space status lacks timeliness, which can easily cause delayed supervision of abnormal conditions in the green space system; there is a lack of accurate analysis of green space carbon sink data, and a lack of sensitive perception of local carbon sink changes in green spaces. It can only grasp the carbon sink reserves of green spaces on a large scale, and cannot accurately obtain changes in carbon sink stability in green spaces. Summary of the invention

[0003] The purpose of the present invention is to provide a system and method for evaluating abnormal fluctuations in urban green space carbon sink monitoring data, so as to solve the problems raised in the prior art.

[0004] To achieve the above object, the present invention provides the following technical solutions: A method for evaluating abnormal fluctuations in urban green space carbon sink monitoring data, the method comprising the following steps: S100, determining the geographical location information of the current urban green space area, retrieving vegetation information of the corresponding urban green space area from the urban green space database; obtaining image data of the corresponding urban green space area, extracting vegetation information of the real-time green space area based on the image data, and updating the database; S200, gridding the image data, evaluating the periodic carbon storage change rate in combination with carbon storage data of the corresponding grid green space area, and dividing the green space area into carbon storage areas based on the evaluation data; S300. According to the carbon storage area division data, the periodic carbon sink intensity analysis is performed on each division area, and the carbon storage division area is hierarchically labeled according to the analysis results; the carbon sink performance of green space at each level is comprehensively evaluated, and the stability analysis of the periodic green space carbon sink system of urban green space is performed based on the green space carbon sink performance evaluation data at each level, and abnormal risk judgment is performed based on the analysis data; S400, updating and storing carbon sink analysis data for each green area in the city in the database, outputting the real-time analysis data to a display port, and issuing warnings for abnormal risks.

[0005] The specific steps of determining the geographical location information of the current urban green space area, retrieving vegetation information of the corresponding urban green space area from the urban green space database, acquiring image data of the corresponding urban green space area, extracting vegetation information of the real-time green space area based on the image data, and updating the database are as follows: S101, determining an urban green space area as a monitoring target, obtaining the urban positioning information of the corresponding green space; in the urban green space database, using the current monitoring target green space positioning information as an index, retrieving the vegetation information of the target green space in the database; wherein the vegetation information includes vegetation type data, vegetation quantity data, vegetation area data, etc.; S102, obtaining real-time full-area image data of the target green space, and extracting real-time vegetation distribution data of the target green space based on the image data; coordinating the extracted green space vegetation information and updating the vegetation information stored in the database.

[0006] The specific steps of performing grid processing on the image data in S200, and evaluating the periodic carbon storage change rate in combination with the carbon storage data of the corresponding grid green space area, and dividing the green space area into carbon storage areas based on the evaluation data are as follows: S201, constructing a real scene model of the target green space by combining the urban target green space image data and the corresponding target green space vegetation extraction data; wherein the proportional adjustment refers to adjusting the entire model by a certain proportion so that the interior of the model remains consistent with the real scene space distribution; S202, based on the target green space real scene model, the corresponding green space scene space grid division processing is performed, and the vegetation distribution space in the green space scene is divided into equal grids; the periodic carbon storage change rate evaluation and analysis is performed on the spatial division grids of the target green space area respectively, and the calculation formula is: ; Among them, RCS n is the periodic carbon storage change rate of the vegetation in the grid numbered n; RC n (T, t2) is the carbon storage of the corresponding vegetation in the grid numbered n at the end of the period T at time t2; RC n (T, t1) is the carbon storage of the corresponding vegetation in the grid numbered n at the beginning of the period T at time t1; T is the analysis period; Based on the periodic carbon storage change rate evaluation and analysis data of each divided grid in the target green space real-life model, each adjacent grid is regionally fused; by setting the regional fusion restriction parameter q, any grid area in the target green space real-life model is taken as the fusion starting point, its adjacent grids are traversed, and the fusion starting point grid and the adjacent grids are fused and analyzed and calculated. The calculation formula is: ; The corresponding adjacent grids that meet the analysis and calculation are fused with the fusion starting grid to generate a fusion grid area, and the adjacent grid areas of the fusion area are traversed; the grid numbered n is the fusion starting point; then n+1 is the adjacent grid of the fusion starting point grid; the fusion analysis and calculation are performed on the fusion starting point grid corresponding to the fusion area and the adjacent grids, and the calculation formula is: ; The corresponding adjacent grids that meet the analysis and calculation are merged with the corresponding fusion area of ​​the fusion starting point grid, and the adjacent grids of the fusion area are traversed again until the adjacent grids of the fusion area do not meet the fusion analysis and calculation results, then the traversal is stopped to complete the carbon storage area division; RCS n (ar) min RCS is the minimum value of the periodic carbon storage change rate in the fusion area corresponding to the fusion starting point of the grid number n; n (ar) m+1 It is the periodic carbon storage change rate of the adjacent grids numbered m at the edge of the fusion area with the grid numbered n as the fusion starting point.

[0007] The S300 performs a periodic carbon sink intensity analysis on each divided area according to the carbon storage area division data, and labels the carbon storage division areas according to the analysis results; comprehensively evaluates the carbon sink performance of green spaces at each level, and analyzes the stability of the periodic green space carbon sink system of urban green spaces in combination with the green space carbon sink performance evaluation data at each level, and performs abnormal risk judgment based on the analysis data. The specific steps are as follows: S301. Based on the data of the target green space carbon storage area division, a periodic carbon sink analysis is performed on each carbon storage area, and the calculation formula is: ; Among them, CSI j is the periodic carbon sink intensity corresponding to the carbon storage region numbered j; RC j is the total carbon storage of the carbon storage area numbered j; S jis the horizontal area of ​​the carbon storage region numbered j; based on the periodic carbon sink intensity analysis data of each carbon storage region, the carbon sink intensity level of each carbon storage region is marked by calling the regional carbon sink intensity reference table; the regional carbon sink intensity reference table is a preset regional carbon sink intensity level comparison table stored in the database, in which the regional carbon sink intensity and the level are matched in intervals, and the level of the corresponding carbon storage region is determined based on the level interval of the carbon sink intensity of each carbon storage region; S302. Combined with the vegetation carbon storage data in each carbon storage area, a periodic carbon sink performance evaluation and analysis is performed on each carbon storage area. The calculation formula is: ; Among them, CSC j is the periodic carbon sink performance index of the carbon storage region corresponding to number j; D p (j) is the number of vegetation of type p in the carbon storage area of ​​corresponding number j; CF p is the carbon content of vegetation of corresponding type number p; G j is the horizontal soil area in the carbon storage area corresponding to number j; CF v (j) is the carbon content per unit area of ​​soil in the corresponding carbon storage area numbered j; Af is the total horizontal area of ​​the target green space; p is the number of vegetation type numbers in the target green space; where, when a vegetation is covered by multiple carbon storage areas, the carbon performance analysis is performed on the part of the vegetation covered by each carbon storage area; Combined with the periodic carbon sink performance index evaluation data of each carbon storage area in the target green space, a comprehensive analysis of the periodic carbon sink performance of the target green space within the period is conducted, and the calculation formula is: ; Among them, CSC f A is the comprehensive index of carbon sink performance of the corresponding target green space cycle; j is the horizontal area of ​​the carbon storage region corresponding to number j; R j is the level of the carbon storage region corresponding to number j; Based on the comprehensive analysis of the carbon sink performance of the target green space cycle, the stability analysis of the carbon sink performance of adjacent cycles was carried out, and the calculation formula is: ; Among them, CSS is the stability evaluation value of carbon sink performance of target green space period; CSC f (T) corresponds to the comprehensive index of carbon sink performance of the target green space in the current cycle; CSC f (T-1) corresponds to the comprehensive index of carbon sink performance of the target green space cycle in the current adjacent previous cycle; CSC f (hs) corresponds to the comprehensive index of the best period carbon sink performance of historical target green space; Based on the analysis data of the periodic carbon sink performance stability evaluation value of the target green space, the green space periodic carbon sink performance stability evaluation threshold CSS is introduced y , analyze the carbon sink performance stability of the target green space in the current cycle; if CSS>CSS y , then it is judged that the carbon sequestration performance stability of the target green land in the current period is abnormal, and the corresponding target green land has the risk of abnormal carbon sequestration; if CSS≤CSS y , it is judged that the carbon sequestration performance stability of the target green space in the current period is normal, and the corresponding target green space status is normal.

[0008] The S400 updates and stores the carbon sink analysis data of each green area in the city in the database, outputs the real-time analysis data to the display port, and warns of abnormal risks. The specific steps are as follows: S401, updating and storing the carbon sink analysis data of each green area in the city in a database; wherein the carbon sink analysis data includes green space periodic carbon storage change rate data, carbon storage area division analysis data, carbon storage area carbon sink intensity data, carbon area carbon sink performance evaluation data and stability evaluation data; S402. The carbon sink analysis data and the carbon sink performance stability status of each green space in the city are displayed and output through the monitoring display port, and the abnormal carbon sink risk is highlighted and warned for the green space with abnormal carbon sink stability.

[0009] A system for evaluating abnormal fluctuations in urban green space carbon sink monitoring data, the system comprising a green space information acquisition module, a model area construction module, a green space carbon sink evaluation module, and an evaluation feedback module; The green space information acquisition module determines the geographical location information of the current urban green space area, retrieves the vegetation information of the corresponding urban green space area from the urban green space database; obtains the image data of the corresponding urban green space area, extracts the vegetation information of the real-time green space area based on the image data, and updates the database; the model area construction module grids the image data, evaluates the periodic carbon storage change rate in combination with the carbon storage data of the corresponding grid green space area, and divides the green space area into carbon storage areas based on the evaluation data; the green space carbon sink evaluation module performs a periodic carbon sink intensity analysis on each divided area according to the carbon storage area division data, and hierarchically labels the carbon storage division areas according to the analysis results; comprehensively evaluates the carbon sink performance of green spaces at each level, and performs a periodic green space carbon sink system stability analysis on urban green spaces in combination with the green space carbon sink performance evaluation data at each level, and makes an abnormal risk judgment based on the analysis data; the evaluation feedback module updates and stores the carbon sink analysis data of each urban green space area in the database, outputs the real-time analysis data to the display port, and warns of abnormal risks.

[0010] The green space information acquisition module includes a green space information retrieval unit and a green space information update unit; The green space information retrieval unit determines the urban green space area as the monitoring target, obtains the urban positioning information of the corresponding green space; in the urban green space database, takes the current monitoring target green space positioning information as the index, and retrieves the vegetation information of the target green space in the database; The green space information updating unit obtains the real-time full-area image data of the target green space, and extracts the real-time vegetation distribution data of the target green space based on the image data; coordinates the extracted green space vegetation information and updates the vegetation information stored in the database.

[0011] The model region construction module includes a model construction unit and a carbon storage region division unit; The model building unit combines the urban target green space image data with the corresponding target green space vegetation extraction data to build a real scene model of the target green space; The carbon storage area division unit performs spatial grid division processing of the corresponding green space scene based on the target green space real-life model, and divides the vegetation distribution space in the green space scene into equal grids; performs periodic carbon storage change rate evaluation and analysis on the spatial division grids of the target green space area respectively; performs regional fusion on each adjacent grid based on the periodic carbon storage change rate evaluation and analysis data of each division grid in the target green space real-life model; by setting regional fusion restriction parameters, any grid area is taken as the fusion starting point in the target green space real-life model, and its adjacent grids are traversed, and fusion analysis and calculation are performed on the fusion starting point grid and the adjacent grids; the corresponding adjacent grids that meet the analysis and calculation are grid-fused with the fusion starting point grid to generate a fusion grid area, and the adjacent grid areas of the fusion area are traversed; the fusion analysis and calculation are performed on the fusion starting point grid corresponding to the fusion area and the adjacent grids; the corresponding adjacent grids that meet the analysis and calculation are fused with the fusion starting point grid corresponding to the fusion area, and the adjacent grids of the fusion area are traversed again, until the adjacent grids in the fusion area do not meet the fusion analysis and calculation results, then the traversal is stopped to complete the carbon storage area division.

[0012] The green space carbon sink assessment module includes a regional carbon sink intensity analysis unit and a green space comprehensive carbon sink assessment unit; The regional carbon sink intensity analysis unit performs periodic carbon sink analysis on each carbon storage area according to the target green space carbon storage area division data; based on the periodic carbon sink intensity analysis data of each carbon storage area, the regional carbon sink intensity reference table is retrieved to mark the carbon sink intensity level of each carbon storage area; The green space comprehensive carbon sink assessment unit combines the vegetation carbon storage data in each carbon storage area to conduct a periodic carbon sink performance assessment and analysis on each carbon storage area; combines the periodic carbon sink performance index assessment data of each carbon storage area in the target green space to conduct a comprehensive analysis on the periodic carbon sink performance of the target green space within the period; based on the comprehensive analysis on the periodic carbon sink performance of the target green space, conducts a carbon sink performance stability analysis on adjacent periods; based on the periodic carbon sink performance stability assessment value analysis data of the target green space, by introducing a green space periodic carbon sink performance stability judgment threshold, conducts a carbon sink performance stability analysis on the target green space in the current period, and conducts a green space carbon sink abnormality risk judgment based on the analysis data.

[0013] The evaluation feedback module includes a database updating unit and an evaluation data feedback unit; The database updating unit updates and stores the carbon sink analysis data of each green area in the city; wherein the carbon sink analysis data includes green space periodic carbon storage change rate data, carbon storage area division analysis data, carbon storage area carbon sink intensity data, carbon area carbon sink performance evaluation data and stability evaluation data; The evaluation data feedback unit displays and outputs the carbon sink analysis data and the carbon sink performance stability status of each green space in the city through a monitoring display port, and highlights the abnormal carbon sink risk for green spaces with abnormal carbon sink stability.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention utilizes periodic information collection and update to realize data storage update of target green space data information, and combines series models, data processing and analysis to realize effective supervision of urban green space system and carbon sink data analysis; ensures data timeliness of target green space through database update; constructs real-life model of green space and grids it, performs carbon storage change analysis to realize green space area division, and performs carbon sink intensity analysis on each area to realize hierarchical division; combines carbon sink performance evaluation of each area with corresponding carbon sink intensity data to realize comprehensive carbon sink performance evaluation of target green space; utilizes continuous period target green space comprehensive carbon sink performance evaluation data to analyze periodic carbon sink change stability, realizes accurate carbon sink data analysis of target green space, grasps the stability of green space system, and real-time supervision of green space status, effectively improving the lagging supervision capacity of urban green space in various cities in the current environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an abnormal fluctuation assessment system for urban green space carbon sink monitoring data according to the present invention. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Example: Figure 1 As shown, the present invention provides a technical solution: A method for evaluating abnormal fluctuations in urban green space carbon sink monitoring data, the method comprising the following steps: S100, determining the geographical location information of the current urban green space area, retrieving vegetation information of the corresponding urban green space area from the urban green space database; obtaining image data of the corresponding urban green space area, extracting vegetation information of the real-time green space area based on the image data, and updating the database; S200, gridding the image data, evaluating the periodic carbon storage change rate in combination with carbon storage data of the corresponding grid green space area, and dividing the green space area into carbon storage areas based on the evaluation data; S300. According to the carbon storage area division data, the periodic carbon sink intensity analysis is performed on each division area, and the carbon storage division area is hierarchically labeled according to the analysis results; the carbon sink performance of green space at each level is comprehensively evaluated, and the stability analysis of the periodic green space carbon sink system of urban green space is performed based on the green space carbon sink performance evaluation data at each level, and abnormal risk judgment is performed based on the analysis data; S400, updating and storing carbon sink analysis data for each green area in the city in the database, outputting the real-time analysis data to a display port, and issuing warnings for abnormal risks.

[0018] The specific steps of determining the geographical location information of the current urban green space area, retrieving vegetation information of the corresponding urban green space area from the urban green space database, acquiring image data of the corresponding urban green space area, extracting vegetation information of the real-time green space area based on the image data, and updating the database are as follows: S101, determining an urban green space area as a monitoring target, obtaining urban positioning information of the corresponding green space; in an urban green space database, using the current monitoring target green space positioning information as an index, retrieving vegetation information of the target green space in the database; S102, obtaining real-time full-area image data of the target green space, and extracting real-time vegetation distribution data of the target green space based on the image data; coordinating the extracted green space vegetation information and updating the vegetation information stored in the database.

[0019] The specific steps of performing grid processing on the image data in S200, and evaluating the periodic carbon storage change rate in combination with the carbon storage data of the corresponding grid green space area, and dividing the green space area into carbon storage areas based on the evaluation data are as follows: S201, constructing a real scene model of the target green space by combining the urban target green space image data and the corresponding target green space vegetation extraction data; S202, based on the target green space real scene model, the corresponding green space scene space grid division processing is performed, and the vegetation distribution space in the green space scene is divided into equal grids; the periodic carbon storage change rate evaluation and analysis is performed on the spatial division grids of the target green space area respectively, and the calculation formula is: ; Among them, RCS n is the periodic carbon storage change rate of the vegetation in the grid numbered n; RC n (T, t2) is the carbon storage of the corresponding vegetation in the grid numbered n at the end of the period T at time t2; RC n (T, t1) is the carbon storage of the corresponding vegetation in the grid numbered n at the beginning of the period T at time t1; T is the analysis period; Based on the periodic carbon storage change rate evaluation and analysis data of each divided grid in the target green space real-life model, each adjacent grid is regionally fused; by setting the regional fusion restriction parameter q, any grid area in the target green space real-life model is taken as the fusion starting point, its adjacent grids are traversed, and the fusion starting point grid and the adjacent grids are fused and analyzed and calculated. The calculation formula is: ; The corresponding adjacent grids that meet the analysis and calculation requirements are fused with the fusion starting grid to generate a fusion grid area, and the adjacent grid areas of the fusion area are traversed; the fusion analysis and calculation are performed on the fusion starting grid corresponding to the fusion area and the adjacent grids. The calculation formula is: ; The corresponding adjacent grids that meet the analysis and calculation are merged with the corresponding fusion area of ​​the fusion starting point grid, and the adjacent grids of the fusion area are traversed again until the adjacent grids of the fusion area do not meet the fusion analysis and calculation results, then the traversal is stopped to complete the carbon storage area division; RCS n (ar) min RCS is the minimum value of the periodic carbon storage change rate in the fusion area corresponding to the fusion starting point of the grid number n; n (ar) m+1 It is the periodic carbon storage change rate of the adjacent grids numbered m at the edge of the fusion area with the grid numbered n as the fusion starting point.

[0020] The S300 performs a periodic carbon sink intensity analysis on each divided area according to the carbon storage area division data, and labels the carbon storage division areas according to the analysis results; comprehensively evaluates the carbon sink performance of green spaces at each level, and analyzes the stability of the periodic green space carbon sink system of urban green spaces in combination with the green space carbon sink performance evaluation data at each level, and performs abnormal risk judgment based on the analysis data. The specific steps are as follows: S301. Based on the data of the target green space carbon storage area division, a periodic carbon sink analysis is performed on each carbon storage area, and the calculation formula is: ; Among them, CSI j is the periodic carbon sink intensity corresponding to the carbon storage region numbered j; RC j is the total carbon storage of the carbon storage area numbered j; S j is the horizontal area of ​​the carbon storage region numbered j; based on the periodic carbon sink intensity analysis data of each carbon storage region, the carbon sink intensity level of each carbon storage region is marked by calling the regional carbon sink intensity reference table; S302. Combined with the vegetation carbon storage data in each carbon storage area, a periodic carbon sink performance evaluation and analysis is performed on each carbon storage area. The calculation formula is: ; Among them, CSC j is the periodic carbon sink performance index of the carbon storage region corresponding to number j; D p (j) is the number of vegetation of type p in the carbon storage area of ​​corresponding number j; CF p is the carbon content of vegetation of corresponding type number p; G j is the horizontal soil area in the carbon storage area corresponding to number j; CF v (j) is the carbon content per unit area of ​​soil in the carbon storage area corresponding to number j; Af is the total horizontal area of ​​the target green space; p is the number of vegetation type numbers in the target green space; Combined with the periodic carbon sink performance index evaluation data of each carbon storage area in the target green space, a comprehensive analysis of the periodic carbon sink performance of the target green space within the period is conducted, and the calculation formula is: ; Among them, CSC f A is the comprehensive index of carbon sink performance of the corresponding target green space cycle; j is the horizontal area of ​​the carbon storage region corresponding to number j; R j is the level of the carbon storage region corresponding to number j; Based on the comprehensive analysis of the carbon sink performance of the target green space cycle, the stability analysis of the carbon sink performance of adjacent cycles was carried out, and the calculation formula is: ; Among them, CSS is the stability evaluation value of carbon sink performance of target green space period; CSC f (T) corresponds to the comprehensive index of carbon sink performance of the target green space in the current cycle; CSC f (T-1) corresponds to the comprehensive index of carbon sink performance of the target green space cycle in the current adjacent previous cycle; CSC f (hs) corresponds to the comprehensive index of the best period carbon sink performance of historical target green space; Based on the analysis data of the target green space’s periodic carbon sink performance stability assessment value, the green space periodic carbon sink performance stability judgment threshold CSS is introduced y , analyze the carbon sink performance stability of the target green space in the current cycle; if CSS>CSS y , then it is judged that the carbon sequestration performance stability of the target green land in the current period is abnormal, and the corresponding target green land has the risk of abnormal carbon sequestration; if CSS≤CSS y , it is judged that the carbon sequestration performance stability of the target green land in the current cycle is normal, and the corresponding target green land status is normal.

[0021] The specific steps of S400 updating and storing carbon sink analysis data of each green area in the city in the database, outputting the real-time analysis data to the display port, and issuing warnings for abnormal risks are as follows: S401, updating and storing the carbon sink analysis data of each green area in the city in a database; wherein the carbon sink analysis data includes green space periodic carbon storage change rate data, carbon storage area division analysis data, carbon storage area carbon sink intensity data, carbon area carbon sink performance evaluation data and stability evaluation data; S402. The carbon sink analysis data and the carbon sink performance stability status of each green space in the city are displayed and output through the monitoring display port, and the abnormal carbon sink risk is highlighted and warned for the green space with abnormal carbon sink stability.

[0022] A system for evaluating abnormal fluctuations in urban green space carbon sink monitoring data, the system comprising a green space information acquisition module, a model area construction module, a green space carbon sink evaluation module, and an evaluation feedback module; The green space information acquisition module determines the geographical location information of the current urban green space area, retrieves the vegetation information of the corresponding urban green space area from the urban green space database; obtains the image data of the corresponding urban green space area, extracts the vegetation information of the real-time green space area based on the image data, and updates the database; the model area construction module grids the image data, evaluates the periodic carbon storage change rate in combination with the carbon storage data of the corresponding grid green space area, and divides the green space area into carbon storage areas based on the evaluation data; the green space carbon sink evaluation module performs a periodic carbon sink intensity analysis on each divided area according to the carbon storage area division data, and hierarchically labels the carbon storage division areas according to the analysis results; comprehensively evaluates the carbon sink performance of green spaces at each level, and performs a periodic green space carbon sink system stability analysis on urban green spaces in combination with the green space carbon sink performance evaluation data at each level, and makes an abnormal risk judgment based on the analysis data; the evaluation feedback module updates and stores the carbon sink analysis data of each urban green space area in the database, outputs the real-time analysis data to the display port, and warns of abnormal risks.

[0023] The green space information acquisition module includes a green space information retrieval unit and a green space information update unit; The green space information retrieval unit determines the urban green space area as the monitoring target, obtains the urban positioning information of the corresponding green space; in the urban green space database, takes the current monitoring target green space positioning information as the index, and retrieves the vegetation information of the target green space in the database; The green space information updating unit obtains the real-time full-area image data of the target green space, and extracts the real-time vegetation distribution data of the target green space based on the image data; coordinates the extracted green space vegetation information and updates the vegetation information stored in the database.

[0024] The model region construction module includes a model construction unit and a carbon storage region division unit; The model building unit combines the urban target green space image data with the corresponding target green space vegetation extraction data to build a real scene model of the target green space; The carbon storage area division unit performs spatial grid division processing of the corresponding green space scene based on the target green space real-life model, and divides the vegetation distribution space in the green space scene into equal grids; performs periodic carbon storage change rate evaluation and analysis on the spatial division grids of the target green space area respectively; performs regional fusion on each adjacent grid based on the periodic carbon storage change rate evaluation and analysis data of each division grid in the target green space real-life model; by setting regional fusion restriction parameters, any grid area is taken as the fusion starting point in the target green space real-life model, and its adjacent grids are traversed, and fusion analysis and calculation are performed on the fusion starting point grid and the adjacent grids; the corresponding adjacent grids that meet the analysis and calculation are grid-fused with the fusion starting point grid to generate a fusion grid area, and the adjacent grid areas of the fusion area are traversed; the fusion analysis and calculation are performed on the fusion starting point grid corresponding to the fusion area and the adjacent grids; the corresponding adjacent grids that meet the analysis and calculation are fused with the fusion starting point grid corresponding to the fusion area, and the adjacent grids of the fusion area are traversed again, until the adjacent grids in the fusion area do not meet the fusion analysis and calculation results, then the traversal is stopped to complete the carbon storage area division.

[0025] The green space carbon sink assessment module includes a regional carbon sink intensity analysis unit and a green space comprehensive carbon sink assessment unit; The regional carbon sink intensity analysis unit performs periodic carbon sink analysis on each carbon storage area according to the target green space carbon storage area division data; based on the periodic carbon sink intensity analysis data of each carbon storage area, the regional carbon sink intensity reference table is retrieved to mark the carbon sink intensity level of each carbon storage area; The green space comprehensive carbon sink assessment unit combines the vegetation carbon storage data in each carbon storage area to conduct a periodic carbon sink performance assessment and analysis on each carbon storage area; combines the periodic carbon sink performance index assessment data of each carbon storage area in the target green space to conduct a comprehensive analysis on the periodic carbon sink performance of the target green space within the period; based on the comprehensive analysis on the periodic carbon sink performance of the target green space, conducts a carbon sink performance stability analysis on adjacent periods; based on the periodic carbon sink performance stability assessment value analysis data of the target green space, by introducing a green space periodic carbon sink performance stability judgment threshold, conducts a carbon sink performance stability analysis on the target green space in the current period, and conducts a green space carbon sink abnormality risk judgment based on the analysis data.

[0026] The evaluation feedback module includes a database updating unit and an evaluation data feedback unit; The database updating unit updates and stores the carbon sink analysis data of each green area in the city; wherein the carbon sink analysis data includes green space periodic carbon storage change rate data, carbon storage area division analysis data, carbon storage area carbon sink intensity data, carbon area carbon sink performance evaluation data and stability evaluation data; The evaluation data feedback unit displays and outputs the carbon sink analysis data and the carbon sink performance stability status of each green space in the city through the monitoring display port, and issues a warning of abnormal carbon sink risk to the green space with abnormal carbon sink stability; In the example: A certain urban green space management unit has introduced the abnormal fluctuation assessment system for urban green space carbon sink monitoring data of the present invention to carry out carbon sink monitoring and management on urban green space; the urban green space area is determined as the monitoring target, and the urban positioning information of the corresponding green space is obtained; in the urban green space database, the vegetation information of the target green space in the database is retrieved with the current monitoring target green space positioning information as the index; the real-time full-area image data of the target green space is obtained, and the real-time vegetation distribution data of the target green space is extracted based on the image data; the extracted green space vegetation information is coordinated and the vegetation information stored in the database is updated; The real-scene model of the target green space is constructed by combining the image data of the urban target green space and the vegetation extraction data of the corresponding target green space. The corresponding green space scene space grid division is processed based on the real-scene model of the target green space, and the vegetation distribution space in the green space scene is divided into equal grids. The periodic carbon storage change rate is evaluated and analyzed for the spatial division grids of the target green space area, and the calculation formula is: ; Based on the periodic carbon storage change rate evaluation and analysis data of each divided grid in the target green space real-life model, each adjacent grid is regionally fused; by setting the regional fusion restriction parameter q, any grid area in the target green space real-life model is taken as the fusion starting point, its adjacent grids are traversed, and the fusion starting point grid and the adjacent grids are fused and analyzed and calculated. The calculation formula is: ; The corresponding adjacent grids that meet the analysis and calculation requirements are fused with the fusion starting grid to generate a fusion grid area, and the adjacent grid areas of the fusion area are traversed; the fusion analysis and calculation are performed on the fusion starting grid corresponding to the fusion area and the adjacent grids. The calculation formula is: ; The corresponding adjacent grids that meet the analysis and calculation are merged with the corresponding fusion area of ​​the fusion starting point grid, and the adjacent grids of the fusion area are traversed again until the adjacent grids of the fusion area do not meet the fusion analysis and calculation results, then the traversal is stopped to complete the carbon storage area division; According to the target green space carbon storage area division data, the periodic carbon sink analysis is carried out on each carbon storage area, and the calculation formula is: ; Combined with the vegetation carbon storage data in each carbon storage area, the periodic carbon sink performance evaluation and analysis of each carbon storage area is carried out respectively, and the calculation formula is: ; Combined with the periodic carbon sink performance index evaluation data of each carbon storage area in the target green space, a comprehensive analysis of the periodic carbon sink performance of the target green space within the period is conducted, and the calculation formula is: ; Based on the comprehensive analysis of the carbon sink performance of the target green space cycle, the stability analysis of the carbon sink performance of adjacent cycles was carried out, and the calculation formula is: ; Based on the analysis data of the periodic carbon sink performance stability evaluation value of the target green space, the green space periodic carbon sink performance stability evaluation threshold CSS is introduced y , analyze the carbon sink performance stability of the target green space in the current cycle; if CSS>CSS y , then it is judged that the carbon sequestration performance stability of the target green land in the current period is abnormal, and the corresponding target green land has the risk of abnormal carbon sequestration; if CSS≤CSS y , then it is judged that the carbon sequestration performance stability of the target green land in the current cycle is normal, and the corresponding target green land status is normal; The carbon sink analysis data of each green area in the city are updated and stored in the database; the carbon sink analysis data include green space periodic carbon storage change rate data, carbon storage area division analysis data, carbon storage area carbon sink intensity data, carbon area carbon sink performance assessment data and stability assessment data; the carbon sink analysis data and carbon sink performance stability status of each green space in the city are displayed and output through the monitoring display port, and the carbon sink abnormality risk of green spaces with abnormal carbon sink stability is highlighted.

[0027] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A method for evaluating abnormal fluctuations in urban green space carbon sink monitoring data, characterized in that: The method comprises the following steps: S100, determining the geographical location information of the current urban green space area, retrieving vegetation information of the corresponding urban green space area from the urban green space database; obtaining image data of the corresponding urban green space area, extracting vegetation information of the real-time green space area based on the image data, and updating the database; S200, gridding the image data, evaluating the periodic carbon storage change rate in combination with carbon storage data of the corresponding grid green space area, and dividing the green space area into carbon storage areas based on the evaluation data; S300. According to the carbon storage area division data, the periodic carbon sink intensity analysis is performed on each division area, and the carbon storage division area is hierarchically labeled according to the analysis results; the carbon sink performance of green space at each level is comprehensively evaluated, and the stability analysis of the periodic green space carbon sink system of urban green space is performed based on the green space carbon sink performance evaluation data at each level, and abnormal risk judgment is performed based on the analysis data; S400, updating and storing carbon sink analysis data for each green area in the city in the database, outputting the real-time analysis data to a display port, and issuing warnings for abnormal risks.

2. The method for evaluating abnormal fluctuations in urban green space carbon sink monitoring data according to claim 1, characterized in that: The specific steps of determining the geographical location information of the current urban green space area, retrieving vegetation information of the corresponding urban green space area from the urban green space database, acquiring image data of the corresponding urban green space area, extracting vegetation information of the real-time green space area based on the image data, and updating the database are as follows: S101, determining an urban green space area as a monitoring target, obtaining urban positioning information of the corresponding green space; in an urban green space database, using the current monitoring target green space positioning information as an index, retrieving vegetation information of the target green space in the database; S102, obtaining real-time full-area image data of the target green space, and extracting real-time vegetation distribution data of the target green space based on the image data; coordinating the extracted green space vegetation information and updating the vegetation information stored in the database.

3. The method for evaluating abnormal fluctuations in urban green space carbon sink monitoring data according to claim 2 is characterized by: The specific steps of performing grid processing on the image data in S200, and evaluating the periodic carbon storage change rate in combination with the carbon storage data of the corresponding grid green space area, and dividing the green space area into carbon storage areas based on the evaluation data are as follows: S201, constructing a real scene model of the target green space by combining the urban target green space image data and the corresponding target green space vegetation extraction data; S202, based on the target green space real scene model, the corresponding green space scene space grid division processing is performed, and the vegetation distribution space in the green space scene is divided into equal grids; the periodic carbon storage change rate evaluation and analysis is performed on the spatial division grids of the target green space area respectively, and the calculation formula is: ； Among them, RCS n is the periodic carbon storage change rate of the vegetation in the grid numbered n; RC n (T, t2) is the carbon storage of the corresponding vegetation in the grid numbered n at the end of the period T at time t2; RC n (T, t1) is the carbon storage of the corresponding vegetation in the grid numbered n at the beginning of the period T at time t1; T is the analysis period; Based on the periodic carbon storage change rate evaluation and analysis data of each divided grid in the target green space real-life model, each adjacent grid is regionally fused; by setting the regional fusion restriction parameter q, any grid area in the target green space real-life model is taken as the fusion starting point, its adjacent grids are traversed, and the fusion starting point grid and the adjacent grids are fused and analyzed and calculated. The calculation formula is: ； The corresponding adjacent grids that meet the analysis and calculation requirements are fused with the fusion starting grid to generate a fusion grid area, and the adjacent grid areas of the fusion area are traversed; the fusion analysis and calculation are performed on the fusion starting grid corresponding to the fusion area and the adjacent grids. The calculation formula is: ； The corresponding adjacent grids that meet the analysis and calculation are merged with the corresponding fusion area of ​​the fusion starting point grid, and the adjacent grids of the fusion area are traversed again until the adjacent grids of the fusion area do not meet the fusion analysis and calculation results, then the traversal is stopped to complete the carbon storage area division; RCS n (ar) min RCS is the minimum value of the periodic carbon storage change rate in the fusion area corresponding to the fusion starting point of the grid number n; n (ar) m+1 It is the periodic carbon storage change rate of the adjacent grids numbered m at the edge of the fusion area with the grid numbered n as the fusion starting point.

4. The method for evaluating abnormal fluctuations in urban green space carbon sink monitoring data according to claim 3 is characterized by: The S300 performs a periodic carbon sink intensity analysis on each divided area according to the carbon storage area division data, and labels the carbon storage division areas according to the analysis results; comprehensively evaluates the carbon sink performance of green spaces at each level, and analyzes the stability of the periodic green space carbon sink system of urban green spaces in combination with the green space carbon sink performance evaluation data at each level, and performs abnormal risk judgment based on the analysis data. The specific steps are as follows: S301. Based on the data of the target green space carbon storage area division, a periodic carbon sink analysis is performed on each carbon storage area, and the calculation formula is: ； Among them, CSI j is the periodic carbon sink intensity corresponding to the carbon storage region numbered j; RC j is the total carbon storage of the carbon storage area numbered j; S j is the horizontal area of ​​the carbon storage region numbered j; based on the periodic carbon sink intensity analysis data of each carbon storage region, the carbon sink intensity level of each carbon storage region is marked by calling the regional carbon sink intensity reference table; S302. Combined with the vegetation carbon storage data in each carbon storage area, a periodic carbon sink performance evaluation and analysis is performed on each carbon storage area. The calculation formula is: ； Among them, CSC j is the periodic carbon sink performance index of the carbon storage region corresponding to number j; D p (j) is the number of vegetation of type p in the carbon storage area of ​​corresponding number j; CF p is the carbon content of vegetation of corresponding type number p; G j is the horizontal soil area in the carbon storage area corresponding to number j; CF v (j) is the carbon content per unit area of ​​soil in the carbon storage area corresponding to number j; Af is the total horizontal area of ​​the target green space; p is the number of vegetation type numbers in the target green space; Combined with the periodic carbon sink performance index evaluation data of each carbon storage area in the target green space, a comprehensive analysis of the periodic carbon sink performance of the target green space within the period is conducted, and the calculation formula is: ； Among them, CSC f A is the comprehensive index of carbon sink performance of the corresponding target green space cycle; j is the horizontal area of ​​the carbon storage region corresponding to number j; R j is the level of the carbon storage region corresponding to number j; Based on the comprehensive analysis of the carbon sink performance of the target green space cycle, the stability analysis of the carbon sink performance of adjacent cycles was carried out, and the calculation formula is: ； Among them, CSS is the stability evaluation value of carbon sink performance of target green space period; CSC f (T) corresponds to the comprehensive index of carbon sink performance of the target green space in the current cycle; CSC f (T-1) corresponds to the comprehensive index of carbon sink performance of the target green space cycle in the current adjacent previous cycle; CSC f (hs) corresponds to the comprehensive index of the best period carbon sink performance of historical target green space; Based on the analysis data of the periodic carbon sink performance stability evaluation value of the target green space, the green space periodic carbon sink performance stability evaluation threshold CSS is introduced y , analyze the carbon sink performance stability of the target green space in the current cycle; if CSS>CSS y , then it is judged that the carbon sequestration performance stability of the target green land in the current period is abnormal, and the corresponding target green land has the risk of abnormal carbon sequestration; if CSS≤CSS y , it is judged that the carbon sequestration performance stability of the target green space in the current period is normal, and the corresponding target green space status is normal.

5. The method for evaluating abnormal fluctuations in urban green space carbon sink monitoring data according to claim 4 is characterized by: The specific steps of S400 updating and storing carbon sink analysis data of each green area in the city in the database, outputting the real-time analysis data to the display port, and issuing warnings for abnormal risks are as follows: S401, updating and storing the carbon sink analysis data of each green area in the city in a database; wherein the carbon sink analysis data includes green space periodic carbon storage change rate data, carbon storage area division analysis data, carbon storage area carbon sink intensity data, carbon area carbon sink performance evaluation data and stability evaluation data; S402. The carbon sink analysis data and the carbon sink performance stability status of each green space in the city are displayed and output through the monitoring display port, and the abnormal carbon sink risk is highlighted and warned for the green space with abnormal carbon sink stability.

6. An abnormal fluctuation assessment system for urban green space carbon sink monitoring data, characterized by: The system includes a green space information acquisition module, a model area construction module, a green space carbon sink assessment module and an assessment feedback module; The green space information acquisition module determines the geographical location information of the current urban green space area, retrieves the vegetation information of the corresponding urban green space area from the urban green space database; obtains the image data of the corresponding urban green space area, extracts the vegetation information of the real-time green space area based on the image data, and updates the database; the model area construction module performs grid processing on the image data, evaluates the periodic carbon storage change rate in combination with the carbon storage data of the corresponding grid green space area, and divides the green space area into carbon storage areas based on the evaluation data; the green space carbon sink evaluation module performs periodic carbon sink intensity analysis on each divided area according to the carbon storage area division data, and hierarchically labels the carbon storage division areas according to the analysis results; comprehensively evaluates the carbon sink performance of green spaces at each level, and performs periodic green space carbon sink system stability analysis on urban green spaces in combination with the carbon sink performance evaluation data of green spaces at each level, and makes abnormal risk judgments based on the analysis data; The evaluation feedback module updates and stores the carbon sink analysis data of each green area in the city in the database, outputs the real-time analysis data to the display port, and warns of abnormal risks.

7. The system for evaluating abnormal fluctuations in urban green space carbon sink monitoring data according to claim 6, characterized in that: The green space information acquisition module includes a green space information retrieval unit and a green space information update unit; The green space information retrieval unit determines the urban green space area as the monitoring target, obtains the urban positioning information of the corresponding green space; in the urban green space database, takes the current monitoring target green space positioning information as the index, and retrieves the vegetation information of the target green space in the database; The green space information updating unit obtains the real-time full-area image data of the target green space, and extracts the real-time vegetation distribution data of the target green space based on the image data; coordinates the extracted green space vegetation information and updates the vegetation information stored in the database.

8. The system for evaluating abnormal fluctuations in urban green space carbon sink monitoring data according to claim 7, characterized in that: The model region construction module includes a model construction unit and a carbon storage region division unit; The model building unit combines the urban target green space image data with the corresponding target green space vegetation extraction data to build a real scene model of the target green space; The carbon storage area division unit performs a spatial grid division process of the corresponding green space scene based on the target green space real scene model, and divides the vegetation distribution space in the green space scene into equal grids; respectively performs a periodic carbon storage change rate evaluation and analysis on the target green space area spatial division grids; based on the periodic carbon storage change rate evaluation and analysis data of each division grid in the target green space real scene model, regional fusion is performed on each adjacent grid; By setting the regional fusion restriction parameters, any grid area in the target green space real scene model is taken as the fusion starting point, its adjacent grids are traversed, and the fusion analysis and calculation of the fusion starting point grid and the adjacent grids are performed; The corresponding adjacent grids that meet the analysis and calculation requirements are meshed with the fusion starting grid to generate a fusion grid area, and the adjacent grid areas of the fusion area are traversed; the fusion analysis and calculation are performed on the fusion starting grid corresponding to the fusion area and the adjacent grids; The corresponding adjacent grids that meet the analysis and calculation are merged with the corresponding fusion area of ​​the fusion starting point grid, and the adjacent grids in the fusion area are traversed again until the adjacent grids in the fusion area do not meet the fusion analysis and calculation results. Then the traversal is stopped to complete the carbon storage area division.

9. The system for evaluating abnormal fluctuations in urban green space carbon sink monitoring data according to claim 8, characterized in that: The green space carbon sink assessment module includes a regional carbon sink intensity analysis unit and a green space comprehensive carbon sink assessment unit; The regional carbon sink intensity analysis unit performs periodic carbon sink analysis on each carbon storage area according to the target green space carbon storage area division data; based on the periodic carbon sink intensity analysis data of each carbon storage area, the regional carbon sink intensity reference table is retrieved to mark the carbon sink intensity level of each carbon storage area; The green space comprehensive carbon sink assessment unit combines the vegetation carbon storage data in each carbon storage area to conduct periodic carbon sink performance assessment and analysis on each carbon storage area; combines the periodic carbon sink performance index assessment data of each carbon storage area in the target green space to conduct a periodic carbon sink performance comprehensive analysis on the target green space within the period; and based on the comprehensive analysis on the periodic carbon sink performance of the target green space, conducts a carbon sink performance stability analysis on adjacent periods; Based on the analysis data of the target green space’s periodic carbon sink performance stability assessment value, by introducing the green space’s periodic carbon sink performance stability judgment threshold, the carbon sink performance stability analysis of the current period’s target green space is conducted, and the green space’s carbon sink abnormality risk judgment is made based on the analysis data.

10. The system for evaluating abnormal fluctuations in urban green space carbon sink monitoring data according to claim 9, characterized in that: The evaluation feedback module includes a database updating unit and an evaluation data feedback unit; The database updating unit updates and stores the carbon sink analysis data of each green area in the city; wherein the carbon sink analysis data includes green space periodic carbon storage change rate data, carbon storage area division analysis data, carbon storage area carbon sink intensity data, carbon area carbon sink performance evaluation data and stability evaluation data; The evaluation data feedback unit displays and outputs the carbon sink analysis data and the carbon sink performance stability status of each green space in the city through a monitoring display port, and issues a warning of abnormal carbon sink risk for green spaces with abnormal carbon sink stability.

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