Abstract
In order to preserve and manage the water environment and landscape in the watershed, the sediment control from upstream to downstream is one of indispensable managements. The watershed consists of river network and various kind of land use. In this paper we propose the numerical model to predict the sediment runoff in forest and agricultural area due to rainfall runoff from the viewpoint of constructing the future sediment routing model in the whole watershed.
By applying the proposed model to the Kutyoro river catchment flowing into Kushiro Mire, we explain that the stream wise variation of watershed land use has a significant influence on both the sediment yield and the concentration of suspended solids through the watershed.
© by Japan Society of Civil Engineers
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