Water Resource Risk Assessment Based on Non-Point Source Pollution

As one of the most important causes water quality deterioration, NPS (non-point source) pollution has become an urgent environmental and livelihood issue. To date, there have been only a few studies focusing on conforming to estimation, sources are mainly concentrated in nitrogen phosphorus nutrients. Unlike that consider intensity loads, risk for China’s Fuxian Lake Basin was evaluated this study by using IECM (Improve Export Coefficient Model) RUSLE (Revised Universal Soil Loss Equation) models estimate loads soil loss multi-factor assessment index established basis data mentioned above. First, results showed load is low, so agricultural production life pollution. Second, degree erosion mild, topography factors affecting erosion. Third, at medium level its spatial distribution characteristics similar loss. Nitrogen, phosphorus, sediment, mean concentrations These involve both natural man-made environments. Therefore, it necessary comprehensively order assess more accurately, as well better solve problem ecological resources allow restoration.