Erratum to: Distribution of isotopes and chemicals in precipitation in Shule River Basin, northwestern China: an implication for water cycle and groundwater recharge
ZHAO Wei, MA Jinzhu* 
, GU Chunjie, QI Shi, ZHU Gaofeng, HE Jiahua
, GU Chunjie, QI Shi, ZHU Gaofeng, HE Jiahua 