Effects of harvest restraint periods and fluctuation tolerances of profits and harvests on sustainable timber supply levels from private forests in a district
Effects of harvest restraint periods and fluctuation tolerances of profits and harvests on sustainable timber supply levels from private forests in a district
复制标题
采伐限制期以及利润和采伐的波动容忍度对地区私有林可持续木材供应水平的影响
DOI：
10.1080/21580103.2016.1274274
复制
发表时间：
2017
影响因子：
1.9
通讯作者：
Tomoyuki Moriya and Satoshi Tatsuhara
中科院分区：
文献类型：
--
作者：
田中彰;安藤直子;楠本大;Tomoyuki Moriya and Satoshi Tatsuhara
目前日本种植园林的年龄级分布呈钟形，峰值在50年。这为增加国内木材供应提供了机会，但必须建立对供应长期稳定的信心。为此，需要从目前的库存出发，更多地了解可持续的收获水平。因此，本研究分析了不同的收获限制期和波动公差的收获和利润水平的收获水平的影响，专注于私人拥有的柳杉种植园在三北区的村上市，新泻县，日本。制定了一个0-1整数规划模型，以预测森林的最大可持续采伐水平，可以提供稳定的利润。模拟了五种收获限制期情况和三种波动容限情况的排列，以评估对总收获量的影响。10年的收成限制期大大提高了可持续收成水平，但进一步延长效果较弱。在没有收获限制的情况下，改变波动容忍度会对可持续收获水平产生重大影响，但在存在限制的情况下则不会。因此，施加10年的收获限制期，使最大的可持续木材生产在研究区。
The current age class distribution of plantation forests in Japan is bell-shaped, with the peak at 50 years. This offers opportunities to increase domestic timber supplies, but confidence in the long-term stability of supplies must be established. For this, greater knowledge of sustainable harvest levels starting from current stocks is required. Thus, this study analyzed effects on harvest levels of varying harvest restraint periods and fluctuation tolerances of both harvest and profit levels, focusing on privately ownedCryptomeria japonicaplantations in the Sampoku district of Murakami City, Niigata Prefecture, Japan. A 0-1 integer programming model was formulated to predict maximum sustainable harvest levels from the forests that could provide stable profits. Permutations of five harvest restraint period cases and three fluctuation tolerance cases were simulated to assess effects on the volume of total harvests. A 10-year harvest restraint period dramatically increased the sustainable harvest level, but extending it further had weaker effects. Varying the fluctuation tolerances substantially affected sustainable harvest levels in the absence of harvest restraints, but not in their presence. Thus, imposing a 10-year harvest restraint period enabled maximal sustainable timber production in the study area.