石羊河流域干湿气候变化特征及对NDVI的影响

张金丹, 刘明春, 李兴宇, 丁文魁, 杨华, 蒋菊芳

Characteristics of dry-wet climate change and its influence on NDVI in Shiyang River Basin

ZHANG Jindan, LIU Mingchun, LI Xingyu, DING Wenkui, YANG Hua, JIANG Jufang

图3 1971—2020年石羊河流域干旱站次比年际变化

Fig.3 The inter-annual variation of drought station frequency ratio in the Shiyang River Basin from 1971 to 2020