Evaluating System on Benefits of Soil and Water Conservation Measures in Reducing Runoff and Sediment on the Loess Plateau

The models evaluating the benefits of runoff and sediment reductions by single soil and water conservation measure under the configuration conditions of different control measures are constructed based on more than 40 years' observation data in major hydrology stations in different regions,coupling the observation results of soil loss under different soil and water conservation measures for different hydrological year types in the regions with large quantity of sediment on the loess plateau.Using modern information technology,an evaluation system is established to estimate the benefits of runoff and sediment reductions by soil and water conservation measures on the loess plateau.The system can be applied to evaluate the benefits of runoff and sediment reductions by soil and water conservation measures for different hydrological year types in a quantitative way and provide a scientific basis and the decision support for soil and water conservation and the construction of eco-environment on the loess plateau.