In this paper,Dujiangyan City was selected as the research area.Remote sensing ecological index(RSEI)was used to comprehensively evaluate the habitat quality of Dujiangyan City in the past 12 years by selec-ting remote sensing image data in 2010,2016 and 2022.The results show that:① The RSEI values of remote sens-ing ecological index in Dujiangyan City during 2010-2022 were 0.565,0.514 and 0.689,respectively,with an o-verall increase of 21.95％;② Compared with 2010,the area of habitat quality improvement in the study area in 2022 was 685.46 km2,accounting for 56.97％of the total area of the study area.The area of degradation area is 319.26 km2,accounting for 26.55％of the total area of the study area.
remote sensing ecological indexprincipal component analysisland use type
NETL
NSTL
万方数据
