马尾松造纸原料林经济成熟的研究

在森林持续经营和考虑资金时间价值的基础上,从森林年平均货币收获量最大出发,提出了一个新的经济成熟龄计算公式,结合林分蓄积量、平均胸径、平均高、出材率和木材价格等因子模型,测算了不同立地类型的马尾松造纸原料林的经济成熟龄。分析了森林货币总收入、总支出、纯收入、年均纯收入的变化规律,探讨了木材价格、成本、利率等经济指标对马尾松造纸原料林经济成熟龄的影响。

Study on the Economic Maturity of Masson Pine Plantation for Pulpwood

On the basis of sustainable growing of the forest and considering the time value of the capital, aiming at the maximum average annual monetary income from the forest, a new calculation formula for the economic maturity age of the forest is proposed. Combining the factor models of forest stand volume, average breast-height diameter, average height, the producing rate of timber, timber price etc., the economic maturity ages of Masson Pine plantation in different local areas are calculated.The change laws of grosss income, gross expenditure, net income, average annual net income of the forest are analyzed.The influence of some economic index such as timber price, cost and interest rate etc. on the economic maturity age of Masson Pine plantation is discussed.