【摘要】 在非点源污染研究过程中 ,土壤流失量的计算是一个重要环节。结合地理信息系统和通用土壤流失方程 ,选择地形、植被、降雨量等因子 ,对松花湖流域常山地区土壤流失量进行了估算 ,并讨论了地形、植被等因子在土壤侵蚀中的影响 ,提出了相应的控制措施更多还原

【Abstract】 In the research of non point pollution, how to calculate soil erosion modulus is a very important step. With the technical support of GIS, the universal soil loss equation (USLE) was used to calculate the soil erosion modulus of Changshan region in the watershed of Songhua lake. Topography, vegetation and precipitation that influence the soil erosion mould were considered. The relationships among those factors were discussed and some control measures were proposed based on the results.更多还原