Multi-scale compatible forest annual growth model building ad modeling method

The invention discloses a multi-scale compatible forest annual growth model building and modeling method, which comprises the following steps of: taking the whole province as a whole, firstly buildinga provincial growth model with accumulation, diameter at breast height and tree height, and then converting a provincial growth mean value model into a county-level local growth model by utilizing measured conversion coefficients of each county; analyzing and correcting the accumulated growth of each modeling sample plot; and finally, respectively fitting by adopting a plurality of modular forms,and selecting the modular form with good correlation coefficient, high fitting precision and small prediction mean square error as a result form. The method can accurately predict the annual minor change, and the annual stability of the prediction result is good; the correlation model equation set is established, and the model parameters of various indexes are solved in a unified mode; and compared with the prior art, the