扩大中国的保护区网络,以提高气候连接的弹性
Dongmei Xu1, Jian Peng1, Jianquan Dong2
1Technology Innovation Center for Integrated Ecosystem Restoration and Sustainable Utilization, Ministry of Natural Resources, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China.
Science bulletin
|May 9, 2024
概括
通过包括生物多样性热点和荒野地区来扩大保护区 (PA),可以显著提高气候连接性和物种适应的弹性. 这种方法对于在全球变暖下有效保护生物多样性至关重要.
科学领域:
- 保护科学 保护科学
- 适应气候变化 适应气候变化
- 生物多样性网络 生物多样性网络
背景情况:
- 现有的保护区 (PA) 往往表现出位置偏差,未能充分覆盖关键的生物多样性区域.
- 扩大PA对气候变化适应和生物多样性保护的好处经常被低估.
- 全球变暖需要适应性保护策略,以确保物种能够追踪合适的气候.
研究的目的:
- 通过整合陆地哺乳动物物种分布热点,关键生物多样性区域 (KBA) 和荒野区域来扩大保护区 (PA).
- 在中国内构建和分析气候连接网络及其弹性.
- 为自然保护提出有效的气候应对策略.
主要方法:
- 利用基于抗性的方法来构建气候连接网络.
- 量化了现有和扩展的PA网络的网络效率和弹性.
- 评估了保护低人力足迹补丁对网络弹性的影响.
主要成果:
- 现有的PA不足以代表生物多样性热点,KBA和荒野地区.
- 与现有网络相比,扩展的PA网络表现出1.80倍的网络效率和1.78倍的弹性.
- 保护低人力足迹补丁显著提高了网络弹性 (比随机场景大15-2倍).
结论:
- 目前仅依赖现有PA的保护战略对于应对全球变暖影响来说是不理想的.
- 一个连接和有弹性的保护网络至关重要,整合关键的生物多样性区域和低人类足迹的补丁.
- 根据物种分布,KBA和荒野地区扩大PA对于有效的气候适应和生物多样性保护至关重要.
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