Predictive modeling in sediment transportation across multiple spatial scales in the Jialing River Basin of China

作     者：Xiaoying Liu Shi Qi Yuan Huang Yuehong Chen Pengfei Du 

作者机构：China Institute of Water Resources and Hydropower ResearchState Key Lab.of Water Recycle Modelling20 Chegongzhuang Road West Beijing Forestry University 

出 版 物：《International Journal of Sediment Research》 (国际泥沙研究(英文版))

年 卷 期：2015年第30卷第3期

页      面：250-255页

核心收录：

学科分类：082802[工学-农业水土工程] 090707[农学-水土保持与荒漠化防治] 0907[农学-林学] 08[工学] 0828[工学-农业工程] 081501[工学-水文学及水资源] 09[农学] 0815[工学-水利工程] 

基　　金：supported by the Ministry of Water Resources of China(20120147 and 2130331) the National Research and Extension Program of China(2013GB23320630) 

主　　题：Sediment transportation Multiple spatial scales Jialing River Basin RUSLE 

摘      要：This research models soil erosion and sediment transportation in the Jialing River Basin based on the Revised Universal Soil Loss Equation(RUSLE) with Geographic Information System(G1S) *** have shown that,the improved method based on the RUSLE model was effective in calculating and predicting the annual sediment transport rate in Jialing River Basin in consideration of the hydrological conditions causing the annual variability of soil loss and the changes in the underlying surface resulting from land management *** the observed and simulated sediment loads in the period of 1989 and 1998,the simulation values showed a consistent trend with the observed values,and the relative errors were controlled at 20%or *** shows that the model can be used to identify hotspot watersheds with different degree of sediment yield and help to make corresponding land use planning and soil and water conservation strategy,and thus help to reduce soil erosion in areas surrounding the Three Gorges Project and other reservoirs in other rivers.