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Water and Energy Abstracts
Year : 2004, Volume : 14, Issue : 2

Print ISSN : 0021-1672.

135. A Distributed Model for Estimating Erosion and Deposition of Sediment in the Yellow River Basin

Xu Z.X., Takeuchi K., Ishidaira H., Liu C.M.

(Erosion Prediction in Ungauged Basins: Integration Methods and Techniques (Proceedings of Symposium HS01 Held During IUGG 2003 at Sapporo, July 2003), IAHS Publication No. 279, pp. 93–100).

Abstract

In this paper, a spatially distributed model for simulating the water budget and estimating erosion is discussed and applied to the basin of the Wei River, the largest tributary of the Yellow River. A digital elevation model (DEM) is created from the elevation data using the Arc View GIS software package. Routing of the water and sediment to the basin outlet is performed using the simplified equations of continuity and momentum for both water and sediment. The model is calibrated by using available field data on precipitation and other climatological observations in the study area. The numerical simulation shows that the proposed mathematical model is able to adequately simulate the water and sediment budgets in the drainage basin.The model results also show that the combination of GIS and a spatially distributed model has greatly improved the capability for simulating streamflow, erosion and transport of sediment at the basin scale.

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Keywords

China, Distributed Hydrological Model, Drainage Basin, Erosion, GIS, Sediment, Wei River, Yellow River.

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