在用材林中,研究林木成熟是确定何时进行主伐利用的基础,但林木无论在任何阶段进行采伐利用均有相当价值。因此,在确定林木采伐利用的成熟期时,除研究达到林地最大生产力水平的成熟期外,更重要的应当对经济上的损益进行判断,以确定其最佳的经济成熟龄。 本文从这一观点出发,综合运用林学、数学和经济学的基本原理,对我国大兴安岭林区的最主要用材树种——兴安落叶松(Larix gmelinii Rupr)的经济成熟龄进行探 In timber forests, research on tree maturity is the basis for determining when to use for primary cutting, but the use of trees for harvesting at any stage is of considerable value. Therefore, in determining the maturity period of timber harvesting and utilization, besides studying the maturity period of reaching the maximum productivity of forest land, it is more important to judge the economic profit and loss so as to determine its best economic maturity. Based on the basic principles of forestry, mathematics and economics, this paper analyzes the economic maturity of Larix gmelinii Rupr, the most important tree species in Daxinanling, China.