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Updated: Jul 1, 2025

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Watershed Planning within a Quantitative Scenario Analysis Framework
Published on: July 24, 2016
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保护计划是为了保留,而不仅仅是保护保护
Pablo Jose Negret1,2,3, Ruben Venegas2,3, Laura J Sonter2,3
1Centre for Development and Environment, Institute of Geography, Wyss Academy for Nature, University of Bern, Bern, Switzerland.
Global change biology
|March 5, 2024
概括
保护区 (PA) 扩张战略对鸟类物种的森林息地保留有重大影响. 针对高森林砍伐风险地区 (风险预防) 保留了更多的息地,并且比避免风险 (风险避免) 更具成本效益.
科学领域:
- 保护科学 保护科学
- 生态生态学 生态生态学
- 生物多样性管理的管理
背景情况:
- 保护区 (PA) 规划通常优先考虑保护区内的物种代表性.
- 这种方法可能无法在更广泛的景观中优化息地保留,特别是考虑到外部息地丧失.
- 评估PA扩张战略对于有效的区域生物多样性保护至关重要.
研究的目的:
- 评估不同PA扩张战略对物种息地保留的区域影响.
- 为了比较预防风险和避免风险的有效性和成本效益,哥伦比亚的PA扩张.
- 为改善生物多样性结果提供未来的PA规划信息.
主要方法:
- 模拟了哥伦比亚的PA扩张场景,重点关注森林依赖的鸟类物种息地保留.
- 将风险预防策略 (针对高森林砍伐风险地区) 与风险回避策略 (针对低风险地区) 相比较.
- 分析了息地保留,保护土地每平方公里的成本,以及避免森林砍伐的成本效益.
主要成果:
- 风险预防策略在2050年为每个物种保留了7.2%更多的森林息地,而不是风险避免.
- 风险预防更具成本效益,避免森林砍伐的每平方公里成本降低了50%-69%.
- 避免风险需要将PA面积增加一倍以上,并将相当于息地保护的成本增加三倍.
结论:
- 在PA的扩张计划中,必须考虑在PA边界之外的区域性息地保留.
- 在PA扩张中优先考虑高森林砍伐风险地区,这对息地保护更有效,更具成本效益.
- 保护战略应整合景观层面的规划,以获得强大的生物多样性结果.
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