基于综合遥感指数的松嫩平原西部草地退化及其对干旱的响应

刘文慧, 李欣烨, 李晓燕

Grassland degradation and its response to drought in the western Songnen Plain based on comprehensive remote sensing index

LIU Wenhui, LI Xinye, LI Xiaoyan

图5 GDI年际变化

Fig.5 Interannual variation of GDI