2014, 27(3): 429-434.
Based on the optimal model of Richards, Logistic and Korf growth function, the age-volume growth models of main forest types in the Three Gorges Reservoir Area were estimated using nonlinear regression. By comparing the results of model-fitted statistics and accuracy test, the most suitable models for every forest type were determined. It shows that the Richards growth function has a strong adaptability, which is most suitable for Masson pine forest, Chinese fir forest, cypress forest, temperate pine forests, deciduous broad-leaved forest, coniferous broad-leaved mixed forest and mixed coniferous forest; while the Logistic or Richards model is applicable for evergreen broad-leaved forest. All the curves of forest types showed good fitting results. These results can provide references for stand growth prediction and forest management in this region.