The northern region of loess plateau in China, where is cross water-wind erosion, is typical ecosystem environment fragile zone with serious soil erosion. The research on
soil erosion prediction is very urgently. However, due to special geography of loess plateau, social and economic condition, the application of oversea prediction models is suffered to limit. We must develop a suite nation situation prediction model. For this, according to the purpose to predict soil erosion, we propose a soil
erosion ecological prediction way. The Liudaogou small watershed, which is located in cross zone of water-wind erosion in the north of loess plateau in China, is taken as studying area. According to theprinciple of soil erosion, we select some main affecting factors as
cartographic generalization objects. They respectively are landforms surface material composition, slope gradient and land utilization ways. On the based of cartographic generalization with GIS, according to combinatorics principles, the
landform Unit', 1, 1595950)"; href="/tags/ecological-landform-unit/">ecological landform unit is formed. In the Liudaogou small watershed, there are 83 kinds of ecological landform unit scattered in (284) plots. The soil erosion basically occurs on wasteland, slope land and sparse shrub land with the slope gradient of 15°~25°, and their areas sums up about 50% of whole watershed.
More abstracts about the Research on Basic Ecological Landform Unit and Model of Soil Erosion Estimation and Predict in Small