Winter rape canopy hybrid inversion processing method and system based on improved PROSAIL model

The invention discloses a winter rape canopy hybrid inversion processing method and system based on an improved PROSAIL model, and relates to the technical field of agricultural water and soil engineering, and the method comprises the steps: selecting a better vegetation index through collecting canopy reflectivity remote sensing images of different growth nodes of winter rape; model parameters of multiple nodes and canopy FPAR in the growth period of the winter rape are extracted, and a hybrid inversion model of the winter rape is established by further combining with a machine learning algorithm. According to the invention, the investment of manpower and material resource cost is greatly saved, the development and achievement transformation of agricultural research are further promoted, and the obtained crop canopy FPAR can provide a decision basis for real-time monitoring of crop growth and formulating of a field management measure scheme. And important parameter support can be provided for farmland ecosys