基于NDVI-LST模型的四川攀西地区近20 a干旱演变特征

刘兴忠, 胡春, 何超, 何国平, 马骁, 姜绪彬

Evolution characteristics of drought in the Panzhihua and Liangshan regions of Sichuan Province based on NDVI-LST model in the past 20 years

LIU Xingzhong, HU Chun, HE Chao, HE Guoping, MA Xiao, JIANG Xubin

图4 2003—2022年攀西地区不同等级干旱面积占比（a）及TVDI、NDVI（b）逐年变化

Fig.4 The proportion of areas of drought with different grades year by year （a） and time series of annual TVDI and NDVI （b） during 2003-2022 in the Panzhihua and Liangshan regions