柳杉人工林经济成熟的研究

Economic mature of Cryptomeria fortunei′s plantation

在森林持续经营的条件下,从森林货币年平均纯收获量最大出发,提出一个以净现值为基础的经济成熟龄计算公式。以柳杉人工林为例,对其不同立地的经济成熟龄进行了分析测算,探讨了木材价格、成本、利率等经济指标的变化对经济成熟龄的影响。

Under the forest sustainable business conditions,from the largest number of the annual average pure harvest of forest′s currency,a formula of the economic mature age which was based on the net present value（NPV） was put forward.Meanwhile the economic mature age of the different sites of the Cryptomeria fortunei′s plantations was analyzed and calculated,and were dealt with the impacts of the changed economic indexes,such as the lumber price,cost and interest rate,etc on the economic mature age.