摘要
利用林分生长收获模型预测林分生长收获量是森林经营和管理的重要手段。早在200年前欧洲学者就编制了林分产量表，根据林分年龄预测林分产量。20世纪70年代随着计算机的普及，科学家们开始研究林分生长和产量预测模型系统，80年代后趋于成熟。
Based on the optimal model of Richards, Logistic and Korf growth function, the age-volume growth mod- els 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.
出处
《林业科学研究》
CSCD
北大核心
2014年第3期429-434,共6页
Forest Research
基金
国家林业局948引进项目"林业碳收支模型CBM-CFS3引进(2012-4-78)
十二五科技支撑项目"长江流域防护林体系整体优化与调控技术研究"(2011BAD38B04)
