抄録
Currently, desertification has become a realistic problem around Chinese Loess Plateau thereby the suitable preventive measures must be urgently adopted. Planting is expected as an effective measure for preventing land desertification, and the available water resource is essential for this planting project. Since the mean annual precipitation is only 400 mm with non-uniform occurrence, estimation of annual available water becomes quite difficult. In the current study, we carried out the field survey on a basin named Liudaogou which has representative topographical and hydrological features of the upper Loess Plateau region. By considering the relation between occurrence of the surface flow and the corresponding rainfall, we evaluated some characteristics of the surface flow and the basic infiltration property of the topsoil. By using the relevant result, we performed the runoff calculation by the conventional kinematic wave model and summarized some runoff characteristics of the upstream region in Loess Plateau.
