LAI inversion of artificial coniferous forest Based on mechanism model

Using 5-scale+Liberty mechanism model and empirical statistical model, the law of LAI inversion of artificial coniferous forest is discussed based on the data of Sentinel-2A and measured LAI in Wangyedian Experimental Forest Farm in Chifeng city of Inner Mongolia.The results show that the precision(R²=0.619, RMSE=1.6107) estimated by univariate linear model is lower, but the precision(R²=0.8222, RMSE=0.9414) estimated by 5-scale+Liberty mechanism model is higher, and the relationship between 5-scale inversion LAI at different paces and measured LAI is further analyzed, the step length affects the LAI inversion accuracy to some extent.