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本文以择伐作业的异龄林为对象,建立了收获调整的矩阵模型。利用矩阵模型分析林分的生长过程和稳定状态,结合线性规划,讨论当材积收获最大、森林总收益最大及贴现收益最大时的林分结构、采伐量和回归年,并提出了在牡丹江林区冷杉林中的应用实例。本文提出的方法可在其它林区的异龄林中试用,得出的结果可作为冷杉异龄林经营利用决策的依据。
In this paper, selective cutting of different age forest as the object, to establish a matrix model of harvest adjustment. Using the matrix model to analyze the growth process and the steady state of the forest stand, and combining with the linear programming, the paper discussed the stand structure, the logging volume and the regression year when the volume harvest was the largest, the total forest total income was the highest, and the discount income was the largest. Application examples in fir forest. The method proposed in this paper can be used in other forests of different age forest trial, the results can be used as the basis for the management decision-making fir different age forest.