Analysis of Spatial-temporal Variation Characteristics of Meteorological Drought in the Hexi Corridor Based on SPEI Index
XUE Hua-zhu, LI Yang-yang, DONG Guo-tao
Chinese Journal of Agrometeorology . 2022, (11): 923 -934 .  DOI: 10.3969/j.issn.1000-6362.2022.11.006