TY - Journal of Yangtze River Scientific Research Institute A1 - WANG Jin-guo, LI Qun, WANG Bi-ying, ZHANG Ying T1 - Characteristics of Nitrogen Pollution and Isotopic Tracer Analysis ofShallow Groundwater in the Sewage Irrigation Area of Kuihe River Y1 - 2017-04-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 15 EP - 19 VL - 34 IS - 4 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20160120 ER -