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Eutrophication is a worldwide pollution problem, when the point source pollution is efficiently controlled, pollution load from non-point source has the increasing proportion in the total load. Xiangxi River is selected as the research demonstration area to conduct preliminary study on non-point source pollution for frequent water bloom. Non-point source pollution factors are analyzed in Xiangxi River...
Red tides and eutrophication have been frequently observed over the past two decades in costal waters around Hong Kong, which are caused by many factors. More researches and control programs in the past are performed on the point source pollution, while few on the nonpoint source pollution (NSP) in Hong Kong due to the lack of NSP data and information. By making use of monthly river water quality...
This paper sets up precipitation runoff and pollutant yield models in plain drainnage area to translate temporal and spatial distribution of rainfall, infiltration and evaporation into temporal and spatial distribution of net rainfall within the drainage. Given flow throughput and polygonal feature of river channel that leads to realization of runoff spatial distribution, it adopts Virtual Flow Confluence...
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