Welcome to Chinese Journal of Applied Ecology! Today is Share:
Variation characteristics of different-level precipitation in Ningxia of Southwest China in 1962-2011. 
LI Fei, ZHANG Ming-jun**, LI Xiao-fei, WANG Bao-long, WANG Sheng-jie, WANG Qiong
cje . 2013, (8): 2154 -2162 .