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New framework for large-scale ecological quality evaluation and application research using remote sensing data

  • role： First author第一作者
  • Affiliation：

    Ministry of Ecology and Environment Center for Satellite Application on Ecology and Environment, Beijing 100094, China

  • Email：gjx@nies.org
  • Introduction：高吉喜，研究方向为区域生态学。E-mail：gjx@nies.org
GAO Jixi,  
  • Affiliation：

    Ministry of Ecology and Environment Center for Satellite Application on Ecology and Environment, Beijing 100094, China

WAN Huawei,  
  • Affiliation：

    Ministry of Ecology and Environment Center for Satellite Application on Ecology and Environment, Beijing 100094, China

WANG Yongcai,  
  • Affiliation：

    Ministry of Ecology and Environment Center for Satellite Application on Ecology and Environment, Beijing 100094, China

HOU Peng,  
  • Affiliation：

    Ministry of Ecology and Environment Center for Satellite Application on Ecology and Environment, Beijing 100094, China

SHI Peirong,  
  • Affiliation：

    Ministry of Ecology and Environment Center for Satellite Application on Ecology and Environment, Beijing 100094, China

SUN Chenxi

Resümee

Ecosystem is the foundation of human survival and sustainable development. Ecological quality evaluation will provide a scientific basis for formulating policies aimed at ecological protection and restoration, which further promote the construction of an ecological civilization.We constructed a remote sensing evaluation framework for ecological quality. This framework consists of “function-stability-stress” in three dimensions. Then, we used remote sensing data, such as vegetation parameters and land use, to monitor and evaluate the terrestrial ecological quality from 2000 to 2018.The overall ecological quality of the country was in good condition in 2018, with approximately 36.98% of the ecological quality above average and only 4.33% indicating poor ecological quality. Fujian, Hainan, Guangxi, and other provinces showed the best ecological quality. From 2000 to 2018, 53.97% of the area ecological quality showed an improvement trend, and the improvement trend was more obvious after 2011. The ecological quality situation in some regions nationwide is still severe. These areas have low ecosystem function, poor ecosystem stability, and high ecosystem stress.By summarizing the results of the national ecological quality assessment, we can observe that the ecological quality evaluation framework is scientific, simple, fast, and economically feasible. Thus, it can meet the requirements of a rapid assessment of regional or national ecosystem quality.

Schlüsselwort

ecosystem quality assessment;remote sensing;ecosystem function;ecosystem stability;ecosystem stress

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