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首页> 外文期刊>American journal of applied sciences >Forest Policy Impact Assessment in the Ouachita National Forest and the Valuation of Conserving Red-Cockaded Woodpeckers
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Forest Policy Impact Assessment in the Ouachita National Forest and the Valuation of Conserving Red-Cockaded Woodpeckers

机译：沃希托国家森林公园的森林政策影响评估与保护红冠啄木鸟的价值

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Problem statement: The Ouachita National Forest received approval in 1996 for an amendment to its Forest Plan that would allocate 10% of the Forest to long-rotation silviculture. The purpose of the new management area is to restore pre-European settlement forest conditions and recreate habitat for the endangered red-cockaded woodpecker. Approach: This study explored the effects of restoring an ecosystem, from changes in the growth patterns of individual trees to ecosystem valuation of the endangered red-cockaded woodpecker. It developed procedures for estimating the magnitude of economic impacts resulting from changes in timber production in the pine-bluestem management to project the value of conserving red-cockaded woodpeckers. Results: Over the entire simulation period, pine-bluestem management returns 75% of the undiscounted revenue generated by traditional management (660 versus 875 million dollars). For all 40,245 ha of the new management area managed for pine-bluestem, this cost amounts to $2.9 million per year. When combined with the $137 million decline in the present value of projected timber sale revenue from the area, the total cost rises to $4.2 million per year. Conclusion: The implied value for each pair of woodpeckers is either $10,550 per year for the desired 400 total pairs or $16,880 per year for the 250 reproducing pairs. Judging from the changes resulting from the transition to pine-bluestem management, adopting the new scenario will not cause significant adverse regional economic consequences. The success of the pine-bluestem restoration requires the maintenance of a burning regime that prevents competing vegetation from occupying the middle canopy layer.
机译：问题陈述：沃希托国家森林公园在1996年获得了对其森林计划的修正案，该修正案将把10％的森林分配给长期轮作的造林。新管理区的目的是恢复欧洲前殖民地的森林条件，并为濒临灭绝的红冠啄木鸟重建栖息地。方法：本研究探讨了恢复生态系统的影响，从单个树木的生长模式变化到濒危的红冠啄木鸟的生态系统评估。它制定了程序，以估算松树-松树管理中木材生产变化所产生的经济影响的幅度，以预测保护红冠啄木鸟的价值。结果：在整个模拟期间，松木蓝茎管理所获得的收益为传统管理所产生的未折现收入的75％（660比8.75亿美元）。对于新管理的所有用于松蓝茎的管理区域，共40,245公顷，每年的成本为290万美元。加上该地区预计木材销售收入的现值减少1.37亿美元，则总成本将增加到每年420万美元。结论：每对啄木鸟的隐含价值是，对于所需的400对共计，每年为10,550美元，对于250对繁殖对，则为每年16,880美元。从向松蓝茎管理过渡的变化来看，采用新方案不会对区域经济造成重大不利影响。松蓝茎恢复的成功需要维持燃烧机制，以防止竞争性植被占据中冠层。

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