Soil erosion assessment in the core area of the Loss Plateau

2017 3rd International Conference on Energy, Environment and Materials Science

能源学;生态环境科学;材料科学

Yang, Bo^1,2 ; Wang, Quanjiu^1

Institute of Water Resources and Hydro-electric Engineering, Xi'An University of Technology, Xi'an, Shaanxi

700048, China^1

Institute of Natural Resources Environment and Historical Culture, Xian Yang Normal University, Xian Yang, Shaanxi

712000, China^2

关键词: Grain for green projects;    Prediction model;    Rainfall erosion;    Sediment yields;    Slope gradients;    Spatio-temporal variation;    Spatiotemporal evolution;    Vegetation restoration;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/94/1/012117/pdf
DOI  :  10.1088/1755-1315/94/1/012117

来源: IOP

【 摘 要 】

In order to explore the spatiotemporal evolution of erosion and sediment yield before and after Grain for Green Project in the Loss Plateau. The soil loss of Yulin is estimated by Chinese Water Erosion on Hill Slope Prediction Model. The result shows that the spatiotemporal variations of soil erosion are largely related to rainfall erosion distribution, slope, and land use type. The overall soil erosion categories in the south region are higher than that of the northwest. Mid slopes and valleys are the major topographical contributors to soil erosion. With the growth of slope gradient, soil erosion significantly increased. The soil loss has a decreasing tendency after Grain for Green Project. The results indicate that the vegetation restoration as part of the Grain for Green Project on the Loess Plateau is effective.