*3.1.1 Soil Erodibility models by type*

Three types of soil erosion models can be distinguished: theoretical, physicsbased, and empirical or statistical models. These models can be divided into three categories based on the physical processes they replicate, the model algorithms that represent these processes, and how much they rely on data [14]. The Universal Soil Loss Equation (USLE), along with its derivatives, the Revised Universal Soil Loss Equation (RUSLE), and the Modified Universal Soil Loss Equation (MUSLE) represent prominent instances of empirical models. They continued by saying that because they may be used in scenarios with sparse data and parameter inputs, empirical models are the most basic models. Additionally, they are particularly helpful in locating the sources of sediment and nutrient production [56].
