【作者】 耿润哲； 王晓燕； 孟凡德； 段淑怀； 李世荣； 路柄军； 刘伟；

【Author】 Runzhe Geng 1 , Xiaoyan Wang 1 , Fande Meng 1 , Shuhuai Duan 2 , Shirong Li 2 , Bingjun Lu 2 , Wei Liu 3 1 College of Resource Environment and Tourism, Capital Normal University, Beijing, China, 100048 2 Water soil conservation station of Beijing, Beijing, China, 100038 3 Beijing Drainage Group Co., Ltd, China, 100037

【机构】 首都师范大学资源环境与旅游学院； 北京市水土保持总站； 北京市城市排水集团有限责任公司；

【摘要】 本文以实地调查为基础,采用输出系数模型对小流域非点源污染进行了负荷估算。结果表明:在不考虑流域损失的情况下,流域总氮、总磷负荷量分别为69102.87kg·a-1和13211.82kg·a-1。其中畜禽养殖所产生的污染负荷最高,其总氮总磷负荷量分别达到流域负荷总量的81%和72%。在畜禽养殖污染源中大牲畜的污染负荷量最高,其总氮总磷负荷量分别达到了畜禽养殖负荷总量的90%以上;在农村生活污染源中,北宅村TN、TP两种污染物负荷量的贡献率分别达到了79%和76%;在种植业所产生的污染负荷中玉米地,板栗林是总氮总磷负荷量最高的两种土地利用类型。在该流域内畜禽养殖厂和集中住宅区应是今后流域非点源污染控制的重点区域。更多还原

【Abstract】 Water quality modeling is an important tool to assess the health of a watershed and to make necessary management decisions to control existing and future pollution of receiving water bodies. The existing export coefficient approach is practical due to minimum data requirement. Based on the field survey, the nonpoint source (NPS) pollution load in BeiZhai small watershed was estimated and its spatial distribution was simulated with GIS techniques. The results indicated that the NPS loads of TN and TP of the watershed were 69.1t·a -1 and 13.2 t·a -1 . Livestock culture pollution source are important contributories. Intensity analysis of NPS pollution load from livestock shows that big livestock are the highest NPS pollution load contributors. In the rural life pollution source, the NPS loads of TN and TP from BeiZhai village accounting for 79% and 76% of the total. In terms of crop and plant cultivation, for TN, the main pollution sources was corn field accounting for 80.5%. For TP, the main pollution sources were chestnut plantation, and corn field, accounting for 62.8% and 25.4%, respectively.更多还原