盐沼碳积累对气候变化的反应
Matthew L Kirwan1, Simon M Mudd
1Department of Environmental Sciences, University of Virginia, PO Box 400123, Charlottesville, Virginia 24151, USA. mlk4n@virginia.edu
Nature
|September 29, 2012
概括
沿海湿地对于海洋碳埋葬至关重要. 气候变化可能最初会增加这些生态系统中的碳积累,但预计随着时间的推移,这种影响会减少.
科学领域:
- 沿海生态 沿海生态
- 地质形态学 地质形态学
- 气候科学是气候科学.
背景情况:
- 浅水生态系统,特别是盐沼,对于海洋碳埋葬至关重要,但它们对气候变化的反应仍然不明.
- 现有的研究主要集中在陆地和深海碳池上,忽视了沿海碳积累的复杂动态.
研究的目的:
- 调查气候变化对潮间湿地的碳积累率的影响.
- 在确定沿海碳储存时,模拟矿物沉积和有机物积累之间的相互作用.
主要方法:
- 盐沼进化的数值模型的开发.
- 整合生产率和分解率的数据.
- 模拟气候变化影响,包括变暖和海平面上升.
主要成果:
- 矿物沉积物和有机物之间的竞争是净碳积累的关键.
- 海平面上升对碳积累的影响比直接变暖更大.
- 随着海平面上升的更高速度,对碳积累的变暖效应会加剧.
结论:
- 预计到21世纪中叶,气候变化将增加沿海湿地的碳埋葬率.
- 预计碳气候相互作用的积极反会随着时间的推移而减少.
- 了解这些动态对于预测未来沿海生态系统的气候反至关重要.
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