基于遥感生态指数的黄河流域生态环境质量变化及影响因素分析
陈芳淼, 黄慧萍, 杨光, 李旭

Research on the dynamic change of the ecological environment and its influencing factors in the Yellow River Basin based on Remote Sensing Ecological Index
Fangmiao Chen, Huiping Huang, Guang Yang, Xu Li
表2 20012019年各期黄河流域生态环境质量分级统计
Table 2 Statistics of grading of the eco-environment quality from 2001 to 2019
RSEI等级2001年2005年2010年2015年2019年
面积/km2比例/%面积/km2比例/%面积/km2比例/%面积/km2比例/%面积/km2比例/%
差(0.0~1.2)16 190.432.0415 317.421.9312 777.751.6111 984.101.5110 793.621.36
较差(0.2~0.4)96 666.4212.18105 634.6513.31111 904.4814.10107 698.1413.57110 237.8113.89
中等(0.4~0.6)611 823.8477.09583 728.6773.55606 347.6676.4060 859.8876.68575 871.5572.56
良好(0.6~0.8)51 269.716.4668 571.258.6440 793.555.1440 634.825.1272 222.049.10
优(0.8~1.0)17 698.372.2320 396.772.5721 825.342.7524 761.843.1224 523.753.09