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对日本落叶松人工林从商品生产特点进行投入产出分析,确定最佳经济成熟期,以此讨论合理利用问题。分析方法采用:按时间顺序设计营林生产工艺流程;测算各年度投入的生产成本;利用固定标准地和树干解析建立胸径、材积与林龄的回归方程,测算生长量;以3种不同林价、4种不同利率进行投入产出分析;以实际林价为基础,计算采伐区间内林价序列平均值,以此进行投入产出分析。结果认为,日本落叶松人工林以主伐区间内林价序列的平均值为立木林价,经济成熟期确定在25～30年为宜。
Analysis of the input and output of Japanese larch plantation from the characteristics of commodity production to determine the best economic maturity, in order to discuss the rational use of the problem. The method of analysis adopted: design the process of silviculture in chronological order; measure the production cost invested in each year; establish the regression equation of DBH, volume and age using the fixed standard and tree trunk to calculate the growth; , 4 different rates of input-output analysis; based on the actual forest price, the average of the forest price series in the logging interval is calculated, and the input-output analysis is conducted. The result shows that the average value of the forest price series in the Larix kaempferi plantation in the main cutting range is the value of standing forest price, and the economic maturity period is determined to be 25-30 years.