Based on Landsat images,this paper used remote sensing technology to extract the four indexes of greenness,humidity,dryness,and heat. The remote sensing ecological index (RSEI) of the ecological economic zone in Poyang Lake from 2002 to 2022 was constructed by principal component analysis,and the temporal and spatial changes of the ecological quality in this zone were evaluated comprehensively. The results show that from 2002 to 2020,the RSEI of the ecological economic zone in Poyang Lake shows an increasing trend. The RSEI rating of most areas is good and excellent,and the proportion increases from 76.86％ to 82.46％,with the most obvious change mainly concentrated in the lake wetland of Poyang Lake Basin. This study provides a scientific basis for further realizing the coordinated development of the ecological environment and economy in the ecological economic zone in Poyang Lake.
关键词
Landsat影像/生态环境质量/遥感生态指数(RSEI)/时空分布/鄱阳湖生态经济区
Key words
Landsat images/ecological environment quality/remote sensing ecological index (RSEI)/temporal and spatial distribution/ecological economic zone in Poyang Lake
维普
万方数据