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雨林保护的经济激励措施 雨林保护的经济激励措施
C Kremen1, J O Niles, M G Dalton
1Center for Conservation Biology, Department of Biological Sciences, Stanford University, Stanford, CA 94305, USA. ckremen@stanford.edu
概括
保护热带森林对于减少温室气体排放至关重要. 然而,经济因素,如伐木收入,可能会超过国家范围内保护效益,可能会加剧森林砍伐.
科学领域:
- 环境科学 环境科学
- 气候变化缓解缓解 气候变化缓解
- 林业经济学 林业经济学
背景情况:
- 热带森林砍伐对全球温室气体排放 (20-30%) 有重大贡献.
- 森林保护为缓解气候变化提供了一个潜在的机制.
- 保护的经济可行性取决于与替代土地用途相比的机会成本.
研究的目的:
- 估计森林保护的成本效益,以缓解气候变化.
- 分析马达加斯加的保护,伐木和农业之间的经济权衡.
- 探索克服热带森林保护经济障碍的政策机制.
主要方法:
- 从地方,国家和全球的角度分析机会成本的经济分析.
- 使用马达加斯加数据的案例研究.
- 在不同土地使用场景 (保护,伐木,农业) 中比较财务效益.
主要成果:
- 森林保护在当地和全球范围内比伐木和农业产生更大的经济效益.
- 在全国范围内,在马达加斯加的案例研究中,工业伐木的财务回报高于保护.
- 不同规模的经济信号的差异可能会激励森林砍伐.
结论:
- 不同规模的经济激励对热带森林保护构成了挑战.
- 京都议定书在创造森林保护市场方面的潜力可以解决这些经济障碍.
- 国际气候政策对于促进有效的森林保护和减缓气候变化可能至关重要.
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