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计算年伐量方式的选择,在很大程度上取决于森林经理方法。经营水平越高,采用的采伐方式和经理方法越多,计算采伐量的方式越完善。目前已有许多计算年伐量的方式。近几年出现一系列新建议,有一些已在实践采用。计算年伐量的方式要求不同的目的、有不同的理论基础,以一系列专门的要求为依据,因此只能用于给定条件下的计算。计算年伐量的方式或以公式或以图表表达。直接计算年伐量的原始材料是具有经营特征的营林——测树指标。在大多数情况下,利用量的计算依据所采用的伐期龄或轮伐期,林分面积和蓄积按龄组或龄级的分布,林分状况,计算时已有的成熟林分和考虑连年生长量
The choice of ways to calculate the annual rate of cut depends very much on the forest manager’s approach. The higher the level of management, the more methods of harvesting and managers are employed, and the better the means of calculating harvesting. There are many ways to calculate the annual rate of cut. A series of new proposals have emerged in recent years, some of which have been adopted in practice. The method of calculating the annual rate of cut requires different purposes, different theoretical foundations, based on a series of specialized requirements and can therefore only be used for the calculation under given conditions. The way to calculate the annual rate of cut is either formula or graph. Direct calculation of the annual cut of the original material is a management characteristics of the forest - tree measurement indicators. In most cases, the utilization is based on the ages of the cuttings or rotations used, the area of the stands and the distribution of age groups or ages, the status of the stands, the mature stands already under calculation, Year after year growth