Validating Erosion Models using Cesium‐137‐Derived Spatial Data

Soil erosion is a worldwide problem causing severe land degradation and surface water quality deterioration. To effectively control soil erosion, distributed soil erosion models such as the Water Erosion Prediction Project (WEPP) have been developed to predict spatial and temporal patterns of soil erosion. However, all of the spatially distributed erosion models have not yet been rigorously tested in the absence of spatial erosion data. The lack of spatial soil erosion data has restricted the validation and application of spatially distributed erosion models.