TY - Journal of Yangtze River Scientific Research Institute A1 - LI Xiao-dong, WANG Yong-qiang, LIU Wan, XU Ji-jun, QU Si-min T1 - Temporal and Spatial Evolution Characteristics of Precipitation in Typical Region of the Headwaters of Three Rivers from 1967 to 2019 Y1 - 2022-01-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 16 EP - 22 VL - 39 IS - 1 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20200971 ER -