Impact Analysis of Human Activities on Flood Process in the River Basin
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Abstract:
Basin flood process is affected by several factors such as rainfall and the underlying surface of watershed, especially human activities have significant impacts on the flood process in the outlet of river basin in recent years. In this study, the upstream basin of the Fengman reservoir in the second Songhua River was selected to perform flood simulation using the Xinanjiang model based on the analysis of survey data The relationships between human activities and model parameters were established in consideration of the impacts of human activities on flood process, and WM and B were improved according to the physical significance of the parameters. The results showed that the method has high simulation accuracy and can reasonably reflect the effects of human activities on the actual flood process, which can provide references for the construction of water conservancy project and flood prediction.
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