Mechanics and Modelling of Nonpoint Source Pollution

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The long-term research goals have been to develop practical approaches for environmentally sustainable nonpoint source pollution management, including watershed based source water protection and nutrient management. The developed approaches will provide means to assess the health of water bodies in a watershed, to quantify the pollutant loading to water bodies, to identify pollutant sources and their contributions to loadings and to evaluate best management practices needed for water quality improvement. Development of such approaches require better understanding and description of seasonal hydrology, areas contributing runoff and pollutants in a watershed, and the variability of these areas with tile drainage and soil, land use and topography characteristics. This research will lead to the development of seasonal variable P-Index, and tools for effective management and redesigning of landscape by identifying flow paths and dominant sources of surface runoff and sediment loads.