Leaf physiological feature and grassland ecosystem productivity quantification method and system

The invention belongs to the technical field of grassland productivity quantitative evaluation, and discloses a leaf physiological feature and grassland ecosystem productivity quantification method and system. The leaf physiological feature and grassland ecosystem productivity quantification system comprises a grassland information acquisition module, a grassland information preprocessing module, a vegetation type determination module, a leaf physiological feature extraction module, a central control module, a model construction module, a productivity estimation module, a quantitative evaluation module, a data storage module and an update display module. According to the method, a statistical regression method is utilized, original information data of the grassland is combined, the relationship between the grassland ecosystem productivity and different vegetation indexes is discussed and analyzed, and then the optimal vegetation index and the grassland productivity estimation model for grassland ecosystem pro