Ecological environment quality comprehensive evaluation in Three Gorges Reservoir Area from 2000 to 2020
It is a hot issue of global concern and research to objectively and comprehensively evaluate regional ecological environment quality.Since the Three Gorges Reservoir Area has been impounded with water,the ecological environment has become relatively fragile,so it is quite necessary to evaluate the ecological environment quality of the Three Gorges Reservoir Area.Based on remote sensing data of 2000,2010 and 2020,ecological environment index(EI)and remote sensing ecological index(RSEI)was combined to construct an ecological environment quality comprehensive evaluation system in Three Gorges Reservoir Area.Results showed that the constructed ecological environment quality comprehensive evaluation system could effectively evaluate the ecological environment quality of Three Gorges Reservoir Area at a large scale for long time series,and the accuracy was reliable.The ecological environment quality showed a downward trend from 2000 to 2010,an upward trend from 2010 to 2020,and an upward trend as a whole from 2000 to 2020.In spatial,the areas with better ecological environment quality were mainly distributed in eastern,northern and southeastern cities like Wuxi County,Yichang County,Xingshan County,Shizhu County,Badong City,and so on;the areas with worse ecological environment quality were mainly distributed in areas with rapid urbanization such as the southwestern region and the riverside of Yangtze River.
NETL
NSTL
万方数据
