基于自然的解决方案可以抵消美国太平洋海岸海平面上升造成的潮湿地的沿海挤压
Karen M Thorne1, Kevin J Buffington2, Michael J Osland3
1U.S. Geological Survey, Western Ecological Research Center, One Shields Ave., Davis, CA, 95616, USA. kthorne@usgs.gov.
Scientific reports
|April 3, 2025
概括
许多太平洋海岸的潮湿地由于海平面上升而缺乏内陆迁徙的空间,威胁着物种和生态系统服务. 以自然为基础的解决方案,如恢复和消除障碍,对于湿地保护至关重要.
科学领域:
- 环境科学 环境科学
- 沿海生态 沿海生态
- 保护生物学 保护生物学
背景情况:
- 海平面上升对全球沿海生态系统构成重大威胁.
- 潮湿地为受保护物种提供关键的生态系统服务和息地.
- 了解陆地迁移潜力是有效沿海湿地管理的关键.
研究的目的:
- 量化美国太平洋海岸的潮湿地陆地迁移的可用空间,以应对海平面上升.
- 识别阻碍湿地迁移的障碍物.
- 评估基于自然的解决方案对湿地保护的潜力.
主要方法:
- 在61个河口排水区进行系统的空间分析.
- 量化可用的陆上迁移空间.
- 识别障碍物 (发达土地,的地形) 和土地覆盖类型 (农业,牧场,淡水湿地).
主要成果:
- 63%的河口没有足够的空间让潮湿地向内陆迁移.
- 发达的土地和的地形是主要的移民障碍,特别是在加利福尼亚.
- 旧金山湾-三角洲和哥伦比亚河的河口提供了最多的迁徙空间 (58%的总量).
- 潮湿地恢复可以增加59%的面积;在54%的河口上,可以建造海拔建筑.
结论:
- 需要紧急的管理干预,以促进潮湿地的迁移,防止损失.
- 基于自然的解决方案,包括恢复和消除障碍,对于保护潮湿地和相关物种至关重要.
- 对于湿地迁移和恢复的战略规划对于长期的海岸弹性至关重要.
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