TY - Journal of Yangtze River Scientific Research Institute A1 - PAN Xiong, LIN Li, DONG Lei, XIE Ling-xian, HUANG Hua-wei, CHEN Jin T1 - Sources of Agricultural Non-point Nitrogen Pollution in Typical Small Watershed of Erhai Lake in Abundant Water Period Y1 - 2020-10-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 16 EP - 20 VL - 37 IS - 10 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.201908367 ER -