DISTRIBUTED MODEL OF HYDROLOGICAL AND SEDIMENT TRANSPORT PROCESS IN MEKONG RIVER BASIN

Zuliziana Suif
2018 International Journal of GEOMATE  
Sedimentation is a global environmental problem that has critical impacts on irrigation, agriculture, navigation, fisheries and aquatic ecosystem. Then, such studies on sediment detachment, transport and deposition have attracted more attention recently. They have addressed the impact of human activities and climate change on sediment transport. However, only a few were reported in large river basins (e.g., drainage area > 100 000 km 2 ). In this study, the Revised Universal Soil Loss Equation
more » ... Soil Loss Equation (RUSLE) model adopted in a GIS framework and coupled with a sediment accumulation and routing scheme to model suspended sediment load in the Mekong River basin. The model developed and applied to analyze sediment dynamics in large rivers. Suspended sediment load measured at nine gauging stations along Mekong River from 1990 to 2000 were compared with the model output. Thus, the results confirmed the derived spatial soil erosion map explicitly in estimates of soil erosion and assessment sediment load in the relatively large river such as the Mekong River. Overall, the present model can be used to support river basin management to seek the best management practices in terms of erosion and sediment transport in the Mekong and other large rivers.
doi:10.21660/2018.42.3515 fatcat:dbw2okasqvclphn7c56rueixbq