土壤侵蚀指在水和风这两种主要的自然力作用下土壤颗粒发生位移及其被输送到别处的过程,但对一特定地点的土壤侵蚀,往往很难确定水与风以何为主。一般说来,风蚀是一个长期的逐渐搬运的过程,而水蚀则往往来得非常迅速,给人留下深刻印象。事实上,直到本世纪初以前的长时间里,人们普遍认为水是土壤侵蚀的主要动因。相应对风则缺乏足够的认识。对风 Soil erosion refers to the displacement of soil particles and their transport elsewhere under the action of two major natural forces of water and wind. However, it is often difficult to determine where water and wind dominate soil erosion in a given location. In general, wind erosion is a long-term, gradual process of moving water, and water erosion is often very rapid, leaving a deep impression. In fact, it was generally accepted that water was the main cause of soil erosion until long ago before the turn of the century. The corresponding lack of adequate understanding of the wind. Wind