Prediction of Reference Crop Evapotranspiration in Northwest China Based on Extreme Learning Machine Model

WEI Jun1 ,CUI Ning-bo1,2 ,CHEN Yu-lin1 ,ZHANG Qing-wen1 , FENG Yu1,3 ,GONG Dao-zhi 4 ,WANG Ming-tian5

China Rural Water and Hydropower . 2018, (8): 35 -39 .