Modeling Individual Tree Growth of Larix by Using Forest Management Inventory Plots

Individual tree growth model is widely used for predicting and modeling trees growth in various stands.Individual tree quadratic diameter increment model which is distancein-dependent of Larix is developed based on 346 remeasured trees growing on 14 forest management inventory plots in Wangqing Forestry Bureau of Jilin Province.This model includes three demanded elements in individual tree growth model:tree size,site condition and competition.The model is characterized by age-independent,without requiring site index and convenient use in practice.According to the results of stepwise regression,the main factors are tree diameter,stand basal area,and slope in modeling individual tree quadratic diameter increment of Larix.