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土壤的抗蚀性,是指土壤低抗雨滴击溅和水流分散、悬移的能力。当侵蚀外营力一定时,土壤侵蚀状况与地面物质的抗蚀能力的强弱有关。应用通用土壤流失方程(USLE)虽可反求出土壤可蚀性因子K值,但由于这种方法需要有大量较长系列标准小区的观测资料作为计算依据,而实际开展土壤侵蚀调查研究的区域内很少具备这一条件,因此在土壤侵蚀调查研究工作中,往往采用野外观测和室内模拟试验相结合的方法来确定土壤抗蚀性指标。
Soil corrosion resistance, refers to the soil with low raindrop splash and water flow dispersion, the ability to suspend. When the erosion of a certain external force, soil erosion and ground material resistance to the strength of the erosion. Although the application of universal soil loss equation (USLE) can obtain the soil erodibility factor K value, but this method requires a large number of longer series of standard cell observation data as the basis for calculation, and actually carry out soil erosion investigation and study of the region Therefore, in the research of soil erosion, the combination of field observation and indoor simulation is often used to determine the soil erosion resistance index.