Predicting rainfall erosion losses : a guide to conservation planning

摘要: The Universal Soil Loss Equation (USLE) enables planners to predict the average rate of soil erosion for each feasible alternative combination crop system and management practices in association with a specified type, rainfall pattern, topography. When these predicted losses are compared given loss tolerances, they provide specific guidelines effecting control within limits. equation groups numerous interrelated physical parameters that influence under six major factors whose site-specific values can be expressed numerically. A half century research many states has supplied information from which at least approximate USLE obtained farm fields or other small prone areas throughout United States. Tables charts presented this handbook make available field use. Significant limitations data identified. is an model designed compute longtime sheet rill conditions. It also useful construction sites non-agricultural conditons, but it does not deposition sediment yields gully, streambank, streambed