大气沉积增加了海洋甲的产量和全球海洋的排放
Guang-Chao Zhuang1,2,3, Shi-Hai Mao4,5,6, Hong-Hai Zhang7,8,9
1Frontiers Science Center for Deep Ocean Multispheres and Earth System (FDOMES) and Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, China. zgc@ouc.edu.cn.
Nature communications
|January 21, 2026
概括
大气中沉积通过增加限量来增强海洋甲产量. 这一发现揭示了一个新的气候反循环,涉及海洋甲循环和大气沉积.
科学领域:
- 生物地质化学生物地质化学
- 海洋学 海洋学 海洋学
- 环境科学 环境科学
背景情况:
- 甲基酸盐降解的有氧甲生产有助于海洋甲超和.
- 大气沉积是一种关键的营养来源,影响了上层海洋生物地质化学.
研究的目的:
- 研究大气中沉积如何影响微生物获取和随后在海洋中产生甲.
主要方法:
- 在不同的沉积场景下分析甲生产率.
- 评估海洋混合层中与的比率和的限制.
主要成果:
- 过度的沉积增强了甲基酸盐分解 (0.1-10.0 pmol L−1 d−1) 的甲产量.
- 沉积使与的比率增加了约27%,加剧了限制.
结论:
- 大气中沉积通过影响微生物获取来调节海洋甲循环.
- 增强的甲生产可能部分抵消了大气沉积对气候的好处,这表明了以前未知的气候反循环.
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