TY - Acta Geographica Sinica A1 - ZHU Ruirui,LIU Changming,ZHENG Hongxing T1 - Estimating Residence Time of Groundwater in the Wudinghe River Basin Y1 - 2009-03-25 00:00:00.0 JF - Acta Geographica Sinica JO - Acta Geographica Sinica SP - 315 EP - 322 VL - 64 IS - 3 UR - {https://www.geog.com.cn/EN/10.11821/xb200903006} N1 - 10.11821/xb200903006 ER -