Development of Soil Erosion Models Abroad

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. According to time factor, the development of soil erosion models is divided into three periods on the basis of the characteristics of models. That is period before establishment of USLE, period of establishment and development on ULSE and contention of a hundred schools of thoughts about soil erosion models. Based on the three periods, some basic soil erosion models in the world are described, and the development process of models abroad are given a brief account.