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首页> 外文期刊>Journal of Forest Planning >Management System for Japanese Oak on the Kyushu University Forest in Hokkaido - Experiment for the 30-year Period -
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Management System for Japanese Oak on the Kyushu University Forest in Hokkaido - Experiment for the 30-year Period -

机译:北海道九州大学森林的日本橡树管理系统-30年的实验-

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摘要

Since 1972, an experimental management system for Japanese oak (Quercus mongolica van grosseserrata ) has been studied in a natural Japanese oak forest, approximately 200ha in area, in the Kyushu University Forest in Hokkaido. The management system was based on the clearcutting system in tongue-shaped blocks surrounded by shelterbelts; rotation was 150 years. The silvicultural process in this management system was designed to produce high-quality timber. For 30 years between 1973 and 2002, the numberof first-year oak seedling established by the silvicultural process averaged 55,000 per ha per year. For 30 years between 1972 and 2002, the area managed averaged 9.11 ha per year. For 30-years, the timber volume derived from thinning and final cuttingaveraged 198m~3 per year. The revenue obtained by selling this timber averaged 892,000 yen per year. The cost of silvicultural process averaged 557,000 yen per year, excluding the costs of staff and other factors owing to the Kyushu University Forest. Thus the average net revenue per year was 335,000 yen for the 30-years.
机译:自1972年以来,在北海道九州大学森林的面积约200公顷的天然日本栎林中研究了日本栎(Quercus mongolica van Grosseserrata)的实验管理系统。该管理系统是建立在由防护林带包围的舌形块中的清除系统之上的;轮换是150年。该管理系统中的造林过程旨在生产优质木材。在1973年至2002年的30年中,通过造林过程建立的第一年橡树幼苗数量平均为每公顷每年55,000。在1972年至2002年的30年中,该地区的平均管理面积为每年9.11公顷。在过去的30年中,伐木和最终伐木所产生的木材量平均每年为198m〜3。通过销售这些木材,每年平均可得到892,000日元的收入。造林过程的平均费用为每年557,000日元,其中不包括员工费用和九州大学森林造成的其他因素。因此,这30年的年平均净收入为335,000日元。

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