Ecological restoration space identification method based on ecosystem service perspective

A technology of ecological system and ecological restoration, applied in the direction of instruments, data processing applications, resources, etc., can solve the problem of not correctly understanding the nature and root causes of regional ecological problems, lack of systematic and holistic considerations, and the spatial scope and scale of ecological restoration The judgment lacks scientific basis and other issues

Inactive Publication Date: 2020-11-03
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

At present, the research on ecological restoration space identification mostly focuses on administrative units, nature reserves or single ecosystems, lacks systematic and holistic considera

Method used

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  • Ecological restoration space identification method based on ecosystem service perspective
  • Ecological restoration space identification method based on ecosystem service perspective
  • Ecological restoration space identification method based on ecosystem service perspective

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Embodiment 1

[0084] Such as figure 1 As shown, Embodiment 1 of the present invention proposes an ecological restoration space identification method based on the perspective of ecosystem services, including:

[0085] (1) Ecosystem service assessment:

[0086] In the designated area, use the water balance equation to calculate the water conservation during the assessment period; use the modified wind erosion equation (RWEQ) to calculate the windbreak and sand fixation during the assessment period; use the revised universal soil erosion equation (RUSLE) to calculate the soil conservation during the assessment period; select Vegetation net primary productivity (NPP) is used as a characterization of the carbon sequestration function of the ecosystem. The CASA model is used to calculate the NPP during the assessment period, and then the carbon sequestration amount is obtained. The assessment period is 10, 15 or 20 years.

[0087] (2) Ecological risk assessment

[0088] Divide the specified ar...

Embodiment 2

[0114] Embodiment 2 of the present invention proposes an ecological restoration space identification system based on the perspective of ecosystem services, and the system includes:

[0115] Ecosystem service assessment calculation module, which is used to select water conservation, windbreak and sand fixation, soil conservation and carbon sequestration as the dominant ecosystem services, and obtain the assessment quantity of ecosystem services in the assessment period of the designated area;

[0116] The ecological risk assessment result calculation module is used to divide the specified area into multiple grids, and determine the reverse transformation probability and loss level of each grid according to the assessment amount of each ecosystem service in the assessment period, thus forming Ecological risk assessment results for each grid;

[0117] The land degradation evaluation result calculation module is used for the trend test analysis of the yearly normalized difference ...

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Abstract

The invention discloses an ecological restoration space identification method and system based on an ecosystem service perspective, and the method comprises the steps: selecting ecosystem services taking water conservation, wind prevention and sand stabilization, soil maintenance and carbon fixation as the leading, and obtaining the ecosystem service evaluation amount of an evaluation time periodof a specified region; dividing the designated area into a plurality of grids, and determining the ecosystem service reverse conversion probability and loss level of each grid according to the ecosystem service evaluation amount of each evaluation time period, thereby forming an ecological risk evaluation result of each grid; obtaining the land degradation evaluation result of each grid based on the trend test analysis of the year-by-year normalized vegetation index (NDVI) of the evaluation time period; and averaging the ecological risk evaluation result and the land degradation evaluation result of each grid to obtain an ecological restoration priority evaluation result of the grid. According to the method, the key area of the ecological restoration project can be identified, and an ecological protection restoration scheme can be finely formulated.

Description

technical field [0001] The invention relates to the field of ecological protection and restoration, in particular to a space identification method for ecological restoration based on the perspective of ecosystem services. Background technique [0002] With the continuous deepening of the reform of the ecological civilization system, the promotion of the overall protection, system restoration and comprehensive management of mountains, rivers, forests, fields, lakes and grass has been extensively researched and developed. Identifying the space for ecological restoration is an important prerequisite for ecological restoration and reconstruction, and it plays an important role in realizing precise ecological and environmental governance, which is conducive to maintaining and improving regional ecosystem services and improving human well-being. At present, the research on ecological restoration space identification mostly focuses on administrative units, nature reserves or single...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/26
CPCG06Q10/0635G06Q10/06393G06Q50/26
Inventor 付梦娣朱彦鹏
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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