降雨侵蚀力是建立土壤侵蚀预报模型的基础。
Rainfall erosivity is necessary to develop the soil erosion model.
土壤侵蚀预报模型在空间尺度上可以划分为坡面、小流域和区域三个层次。
Soil erosion forecasting model can be divided into three levels of slope, small watershed and region in spatial scale.
介绍了美国土壤侵蚀预报模型的研究情况。特别叙述了USLE及WEPP的基本情况：理论基础、模型的适用性与局限性。
Model studies on soil erosion prediction undergone in USA, such as USLE and WEPP, are introduced as concerned with their physical fundamentals, applicability, and limitations.
坡耕地作为重要的侵蚀产沙区，揭示其土壤侵蚀规律和泥沙运移方式，对建立土壤侵蚀预报模型、加强土地管理防止土壤退化具有十分重要的意义。
It is important to reveal the law of soil erosion and develop soil erosion forecast model, which has a bearing on preventing the loess of water and soil.
降雨侵蚀力反映了降雨对土壤侵蚀影响的潜在能力，它是建立土壤水蚀预报模型的基础。
The rainfall erosivity can suggest the potential effect of rainfall on soil erosion. It is necessary to develop the water erosion model.
揭示浅沟侵蚀过程将加深对陡坡地土壤侵蚀规律的认识，也为侵蚀预报过程模型的建立提供重要的理论依据。
Quantifying ephemeral gully erosion process may enhance to deeply understand soil erosion process on steep hillslope, and provides important theory support to establish erosion prediction model.
研究成果可为应用土壤侵蚀模型进行土壤流失预报服务。
The results of this study could be applied in soil erosion prediction by using soil erosion model.
土壤侵蚀模型是预报水土流失、指导水土保持措施配置、优化水土资源利用的有效工具。
Soil erosion models can be adopted to predict soil erosion and water loss, guide the allocation of soil and water conservation measures and optimize to effectively use of water and land resources.
坡面侵蚀预报模型的研究可加深对土壤侵蚀过程及其机理的认识，为坡面水土保持措施配置提供科学支持。
This paper detailedly outlined research progresses in water erosion prediction models at hillslope, watershed and region scales, and treand prediction of soil erosion at macro-scale in China.
坡面侵蚀预报模型的研究可加深对土壤侵蚀过程及其机理的认识，为坡面水土保持措施配置提供科学支持。
This paper detailedly outlined research progresses in water erosion prediction models at hillslope, watershed and region scales, and treand prediction of soil erosion at macro-scale in China.
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