Identification and regulation of non-point source pollution key areas in watershed based on “source-sink” theory

Ning Huang1, Junjie Guan1, Tao Lin2, Xiaoying Qin1 and Jiangfu Liao3, (1)Jimei University, Xiamen, China, (2)Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China, (3)Jimei University, Xiamen, Jimei, Fujian, China