Abstract
In order to reveal agricultural non-point source(NPS) pollution in Yongding river in Hebei province, the resource, loading and distribution of agricultural NPS pollution is analyzed in the paper based on remoting sense and geographic information system by export coefficient model. The result indicates that, temporal distribution of agricultural NPS pollution is concentrates on high flow seasos/years. As far as the spaceial distribution of agricultural NPS pollution load is concerned, it concentrates on infield (sloping land especially), economic crop plantations, high fertilizer distribution area and villages. In the conclusion, it is suggested that the methods of agricultural land use, crop plantation should be improved and the treatment efficiency of waster water and solid waste should be increased.
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