LIU Yuxi,REN Jingquan,WANG Dongni,MU Jia,CUI Jialong,CHEN Changsheng,CHEN Xi,GUO Chunming. Spatio-temporal distribution characteristics and causes analysis of reference crop evapotranspiration in Jilin province[J]. Ecology and Environmental Sciences, 2019, 28(11): 2208-2215.