干旱区研究
Drought Assessment Based on Drought Index and Principal Component Analysis:A Cased Study in the Xilin River Basin
WANG Hui-min, HAO Xiang-yun, ZHU Zhong-yuan
Arid Zone Research . 2019, (1): 95 -103 .  DOI: 10.13866/j.azr.2019.01.11