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A Red List Evaluation Method of Desert Ecosystem Based on Remote Sensing and GIS

A technology for ecosystems and deserts, applied in the fields of instruments, computing, geographic information databases, etc., can solve the problems of lack of quantitative indicators of ecosystem change process, difficult to determine the basic unit of evaluation, and difficult to unify the classification of ecosystems, so as to achieve a simple evaluation method. Easy to operate, intuitive results, easy to promote and apply

Active Publication Date: 2021-08-17
NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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Problems solved by technology

[0012] Aiming at the problems such as difficulty in unifying the classification of ecosystems in the division process of the existing ecosystem red list, difficulty in determining the basic unit of assessment, lack of quantitative indicators in the process of ecosystem change, and difficulty in realizing rapid batch evaluation on a macro scale, the present invention aims to improve a A new rapid assessment method for desert ecosystem red list based on remote sensing and GIS

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  • A Red List Evaluation Method of Desert Ecosystem Based on Remote Sensing and GIS
  • A Red List Evaluation Method of Desert Ecosystem Based on Remote Sensing and GIS
  • A Red List Evaluation Method of Desert Ecosystem Based on Remote Sensing and GIS

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Embodiment 1

[0042] This embodiment discloses the evaluation method of the desert ecosystem red list based on remote sensing and GIS taking my country's desert ecosystem as an example. The flow chart of the desert ecosystem red list evaluation method is as follows figure 1 As shown, it specifically includes the following steps:

[0043] (1) To meet the needs of the desert ecosystem red list, construct a desert ecosystem classification system. It is divided into 2 orders, 16 families, 50 genera, and 113 clusters. See Table 2 for the desert ecosystem classification system.

[0044] Table 2 Red list classification system of desert ecosystems

[0045]

[0046]

[0047]

[0048] (2) List the land distributed in arid and semi-arid areas with vegetation coverage lower than 4% as the evaluation scope of the red list of desert ecosystems. Use the GIS software ArcGIS to build a geospatial database, and set a unified projection and geographic coordinate system according to the scope of th...

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Abstract

The invention discloses a remote sensing and GIS-based evaluation method for the red list of desert ecosystems, which belongs to the technical field of biodiversity protection. It includes the following steps: (a) constructing the desert ecosystem classification system; (b) dividing the desert ecosystem evaluation vegetation group; (c) establishing the desert ecosystem threat level assessment standard; (d) calculating the desert ecosystem threat assessment index ; (e) classify the desert ecosystem threat level; (f) construct the desert ecosystem red list. The method of the invention realizes the rapid assessment of the threatened level of the desert ecosystem red list, and combines the list with the spatial information of habitat patch degradation, which can provide a basis for the protection and management of a large-scale ecosystem, and overcomes the existing ecological system. In the red list classification process, it is difficult to unify the classification of ecosystems, it is difficult to determine the basic unit of assessment, there is a lack of quantitative indicators for the process of ecosystem change, and it is difficult to achieve batch evaluation on a macro scale.

Description

technical field [0001] The invention belongs to the technical field of biodiversity protection, and relates to an evaluation method of a desert ecosystem red list based on remote sensing and GIS. Background technique [0002] Biodiversity is the material basis of living systems, which can directly provide living space for humans and other organisms, and provide organisms with suitable habitats and various services through the exertion of ecological functions. However, due to climate change and the intensification of human activities, global biodiversity continues to be lost. Biodiversity assessment is the premise of formulating conservation measures. Traditional biodiversity assessment mainly focuses on species diversity, which has shortcomings such as insufficient representation of biodiversity and inability to respond to changes in ecosystem diversity in a timely manner. Protecting the ecosystem as a whole can more effectively ensure the coordinated development of natural...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/29G06K9/62
CPCG06F18/2193G06F18/241
Inventor 单楠周可新唐夫凯潘扬
Owner NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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