基于SPEI的粤西近50 a干旱特征分析
李家良, 彭丽英, 刘祖任, 余绍荣, 梁家杰

Drought characteristics in western Guangdong over the past 50 years based on SPEI
LI Jialiang, PENG Liying, LIU Zuren, YU Shaorong, LIANG Jiajie
图2 1973—2022年粤西不同季节SPEI变化趋势空间分布[单位:(10 a)-1]
(a)春季,(b)夏季,(c)秋季,(d)冬季
Fig.2 The spatial distribution of SPEI variation trend in western Guangdong in different seasons during 1973-2022 (Unit:(10 a)-1
(a) spring,(b)summer,(c)autumn,(d) winter