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首页> 外文期刊>Journal of Forest Planning >The Effect of Simultaneous Harvesting of Adjacent Plantation Stands on Acceptable Cutting Age
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The Effect of Simultaneous Harvesting of Adjacent Plantation Stands on Acceptable Cutting Age

机译：同时采伐相邻林分对可接受采伐年龄的影响

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摘要

Using the standard parameters of stand and logging conditions and incorporating cost reductions and discount rates, I estimated the financial yield under the soil-rent theory, present value of future profit (PVFP) model, and forest-rent theory. I observed the effects of cost-cuttings on shifts in the optimal cutting age and the range of acceptable cutting age caused by the simultaneous harvesting of adjacent conifer plantation stands in Japan. Under the forest-rent theory, the optimal cutting age was110 years, which was the upper limit of the calculation. The lower limit of the range of acceptable cutting age was greater than 100 years under all assumptions. With simultaneous harvesting, the optimal cutting ages under all assumptions were within the acceptable ranges, and the acceptable range could be narrowed for PVFP. Shifts in the optimal cutting ages resulting from simultaneous harvesting were small compared to those caused by changing the discount rate and the rate of subsidies for planting and silvicultural operations. These results indicate that forest managers can decide on cutting age without being concerned about the dispersal of the current stand ages and the optimal cutting ages of adjacent stands.
机译：使用林分和伐木条件的标准参数，并结合成本降低和折现率，我根据土壤租金理论，未来利润现值（PVFP）模型和森林租金理论估算了财务收益。我观察到削减成本对日本同时采伐针叶林林分同时采伐引起的最佳伐木年龄和可接受伐木年龄范围变化的影响。根据森林租金理论，最佳采伐年龄为110年，这是计算的上限。在所有假设下，可接受的切削年龄范围的下限均大于100年。在同时收获的情况下，所有假设下的最佳采伐年龄都在可接受的范围内，PVFP的可接受范围可能会缩小。与通过改变贴现率以及对种植和造林业的补贴率的变化所引起的收获相比，同时收获导致的最佳采伐年龄的变化很小。这些结果表明，森林经营者可以决定伐木年龄，而不必担心当前林分的散布和相邻林分的最佳伐木年龄。

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