鄂尔多斯市黄河流域旗县生态安全评价

刘晓民, 阿木古楞, 杨耀天, 刘勇

Ecological security evaluation of counties/banners in the Yellow River basin in Ordos

LIU Xiaomin, AMUGULENG , YANG Yaotian, LIU Yong

图4 4个旗县2010—2020年生态安全变化趋势

Fig.4 Trends of ecological security in four counties from 2010 to 2020