Time series model can simulate and predict the increase of Quercus variabilis population by the difference,periodic method.We choose the forest appearance tidiness,representative stands serving as standard plots,40 stands were set up at Qinling,Hanzhong,Huanghong in Shaanxi respectively,measure every tree in the stands,measure the actual increase by the dominance tree,the time series model of individual age and diameter of Quercus variabilis was established according to the actual diameter of Quercus v...
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