Soil erosion decoupling analysis method based on PLS-SEM model

The invention discloses a soil erosion decoupling analysis method based on a PLS-SEM model. The method comprises the steps of obtaining data for providing preprocessing, preprocessing the data, screening Group Lasso variable features, and establishing the PLS-SEM model for decoupling. According to the method for decoupling the soil erosion mechanism, the correlation between soil erosion and driving factors such as precipitation, soil types and runoff depth is analyzed, the mutual relation and the potential influence mechanism between the driving factors are disclosed, and the problem that the attribution analysis of the influence factors of soil erosion is insufficient in China at present is solved; the PLS-SEM model is constructed by extracting effective influence factors, non-normal data can be processed, the interpretability is high, the application range is wide, and use and implementation are easy; cooperative regulation and control of all factors in a water and soil loss mechanism are disclosed, and imp