延安市土地生态风险时空格局演变研究

段艺芳, 任志远, 周晓, 孙艺杰

Spatio-temporal variation in the land ecological risk of Yan’an City

Yifang DUAN, Zhiyuan REN, Xiao ZHOU, Yijie SUN

图7 延安市土地综合生态风险冷热点区域时空格局演化

Fig.7 Spatial and temporal evolution of hot and cold spots of land comprehensive ecological risk in Yan’an City