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重新评估非洲沙漠-森林领域的替代生态系统状态提案

Steven I Higgins¹, Swarnendu Banerjee^2,3, Mara Baudena^4,5

¹Plant Ecology, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany.

The New phytologist

|July 10, 2024

概括

多色世界 (MCW) 假设表明可以存在替代生态系统状态 (AES),挑战气候决定性. 然而,目前关于非洲森林和大草原作为AES的证据是不确定的,在指导气候变化适应之前需要更多的研究.

科学领域:

生态生态学生态生态学
气候变化科学气候变化科学
保护生物学保护生物学

背景情况:

生态学家面临的挑战是预测生态系统对气候变化的反应.
多色世界 (MCW) 假设认为,火和食草等因素可以覆盖气候对生态系统状态的影响.
对MCW的一个关键解释是,气候决定论由于替代生态系统状态 (AES) 的可能性而失败.

研究的目的:

评估理论和实证证据,支持森林和草原是非洲的替代生态系统状态 (AES).
在气候变化影响的背景下,评估AES目前证据的可靠性.

主要方法:

审查与替代生态系统状态 (AES) 相关的理论框架.
对非洲生态系统的纵向和实验研究的经验数据的分析.
对现有地图进行比较,推断出潜在的AES区域的位置.

主要成果:

显示潜在AES区域位置的地图被发现是矛盾的.
从纵向和实验研究中获得的经验数据为森林-沙漠AES的存在提供了不确定的证据.
虽然森林-草原AES的理论基础是合理的,但目前的经验支持尚未令人信服.

结论:

森林和草原作为非洲的替代生态系统状态 (AES) 的提议需要更强大的证据基础.
对于萨凡纳森林领域的气候变化缓解和适应战略,AES的潜在后果是显著的.
需要进一步的研究来巩固AES的证据,然后才能为气候变化适应的管理行动提供信息.

关键词:

稳定性比稳定性比稳定性气候决定主义气候决定主义预测预测预测预测森林的森林是森林的森林.草食动物草食动物萨凡纳萨凡纳萨凡纳萨凡纳不确定性是一种不确定性.野火野火是一场野火.

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