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		基于SPEI的广东省近50 a干旱时空特征
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			Spatial-temporal characteristics of drought in recent 50 years in Guangdong Province based on SPEI
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| 图1. 广东省地形及86个国家气象观测站分布 | 
| Fig.1. Distribution of 86 national meteorological observation stations and topography in Guangdong Province | 
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