Regional soil erosion model is a effective tool for regional soil erosion survey and policy-making of water and soilconservation.
区域土壤侵蚀模型是国家和区域土壤侵蚀调查、水土保持宏观规划的支持工具。
2
Because the soil and water conservation factor was not concluded in net method, the soil erosion modulus calculated with net method was higher than that calculated with sampling survey method.
由于网格法没有考虑水土保持措施因子，调查得到的土壤侵蚀量结果比采用抽样调查法得到的结果偏大。
3
Environmental protection, water and soilconservation, water source quality protection, engineering quality, technologies and economies should be considered comprehensively during survey and design.