Spatial and Temporal Distribution of Spring Drought in Northwest China Based on Standardized Precipitation Evapotranspiration Index
CHEN Fei,YANG Shenbin,WANG Chunling,WANG Runyuan,WANG Heling, QI Yue
Journal of Arid Meteorology . 2016, (1): 34 -42 .  DOI: 10.11755/j.issn.1006-7639(2016)-01-0034