RUSLE Factors

This landing page is the collection of data packages that are derived as input to the Hillslope Erosion equation. \r\n\r\nThe Universal Soil Loss Equation (USLE) and its main derivate, the Revised Universal Soil Loss Equation (RUSLE), are widely used in estimating hillslope erosion\r\n\r\n### Soil Erodibility (K-factor)\r\nSoil erodibility represents the soil's response to rainfall and run-off erosivity and is related to soil properties such as organic matter content, texture, structure, permeability and aggregate stability.\r\n\r\n### Slope and Steepness (LS-factor)\r\nThe effects of topography on hillslope erosion are estimated through the product of slope length (L) and slope steepness (S) subfactors, or LS factor, which often contains the highest detail and plays the most influential role in RUSLE.\r\n\r\n### Rainfall Erosivity (R-factor)\r\nRainfall is a main driver of soil erosion by water. The relation between rainfall and sediment yield is given by the rainfall erosivity. The R-factor is the sum of all erosive events during a 1-year period.\r\n\r\n### Cover and Management (C-factor)\r\nOne of the important and dynamic elements in the RUSLE model is the cover and management factor (C-factor), which represents effects of vegetation canopy and ground cover in reducing soil loss.本登陆页面汇集了用于坡面侵蚀方程输入的全套数据集包。 通用土壤流失方程（Universal Soil Loss Equation, USLE）及其核心衍生模型修正通用土壤流失方程（Revised Universal Soil Loss Equation, RUSLE）已被广泛应用于坡面侵蚀量的估算工作。 ### 土壤可蚀性（K-factor） 土壤可蚀性表征土壤对降雨及径流侵蚀力的响应，与土壤有机质含量、机械组成、结构、渗透性及团聚体稳定性等理化性质紧密相关。 ### 坡长与坡度（LS-factor） 地形对坡面侵蚀的影响通过坡长（L）与坡度（S）两个子因子的乘积，即LS因子，进行量化估算；该因子通常包含最为丰富的细节信息，且在RUSLE模型中发挥着最为关键的影响作用。 ### 降雨侵蚀力（R-factor） 降雨是水蚀型土壤侵蚀的核心驱动力，降雨与产沙量之间的关联由降雨侵蚀力体现。R因子为单一年度内所有侵蚀性降雨事件的总侵蚀力之和。 ### 覆盖与管理措施（C-factor） RUSLE模型中重要且极具动态性的参数之一为覆盖与管理因子（C-factor），该因子表征植被冠层与地表覆盖对土壤流失的抑制效应。