沿海盐泥地 (sabkhas) 是否有助于蓝色碳的捕获?
Hadil Elsayed1, Zulfa Ali Al Disi1, Khaled Naja1
1Environmental Science Center, Qatar University, P.O. Box 2713, Doha, Qatar.
概括
波斯湾的sabkhas (泥地) 可能无法封存碳,因为碳酸盐的形成否定了有机碳的增加. 无机碳分析对于准确的蓝色碳评估至关重要.
科学领域:
- 海洋生态海洋生态学
- 地质化学 地质化学
- 沿海的生态系统
背景情况:
- 蓝碳生态系统储存有机碳,但sabkhas的作用是有争议的.
- 无机碳,特别是碳酸盐,影响了大气中的碳净交换.
- 以前的评估往往忽略了sabkhas.中的无机碳.
研究的目的:
- 在两个对比的波斯湾sabkhas中量化有机和无机碳保留.
- 评估这些萨布哈斯的净碳捕获能力.
- 确定无机碳分析对于蓝色碳评估的必要性.
主要方法:
- 在sabkha沉积物中的有机和无机碳库存的库存.
- 在碳酸和酸性sabkha中碳保留的比较.
- 基于碳库存的净二氧化碳封存计算.
主要成果:
- 卡塔尔萨布哈斯的有机碳储量相当于红树林和盐沼.
- 研究的两种sabkhas都被发现可以避免CO2进入大气层.
- 碳酸盐在碳状sabkha的形成否定了有机碳的积累.
结论:
- 萨布哈斯的净碳捕获能力受到无机碳工艺的重大影响.
- 无机碳分析,特别是碳酸盐形成,对于准确的蓝碳评估至关重要.
- 仅依靠有机碳可能会高估sabkhas的碳捕集潜力.
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