Effect of different slope landscape patterns on spatial and temporal variations of soil water, runoff and sedimentation in Xiaolangdi Reservoir area

Spatial and temporal variations of soil water,runoff and sedimentation on six slope landscape patterns(no-tillage cropland,conventional tillage cropland, fallow land, orchard, woodland, intercropped land) in Xiaolangdi Reservoir area were investigated. Results show average increased soil water content of cultivated slope landscapes(no-tillage and conventional tillage ) to be 1.51,2.32,5.63,and 2.66 times of that of fallow land, orchard, woodland and intercropped land respectively, and with 7.06%,11.9 2%,17.23% and 13.07% higher average water storage efficiency at the end of the rainy season. Vertical changes in moisture across the soil profile are grouped into four clusters: increasing, decreasing, fluctuating,and increasing-decreasing tendencies. Woodland slope has the least accumulated runoff and sedimentation while conventional tillage cropland has the highest of all the slope landscape patterns. Accumulated runoff and sedimentation for conventional tillage cropland is 13.9 times of that of forest landscape.