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4 1971—2020年石羊河流域干旱频次的季节变化

Fig.4 Seasonal variation of drought frequency in Shiyang River Basin during 1971-2020