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基于SPEI的粤西近50 a干旱特征分析
李家良1(), 彭丽英2(), 刘祖任1, 余绍荣1, 梁家杰3
Drought characteristics in western Guangdong over the past 50 years based on SPEI
LI Jialiang1(), PENG Liying2(), LIU Zuren1, YU Shaorong1, LIANG Jiajie3

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