通过密集的货架水运输出口到大陆架以外的大量海藻碎片
Mirjam van der Mheen1, Thomas Wernberg2,3, Charitha Pattiaratchi4
1School of Biological Sciences and UWA Oceans Institute, University of Western Australia, Perth, WA, Australia. mirjam.vandermheen@uwa.edu.au.
Scientific reports
|January 8, 2024
概括
藻类森林显著提升了海洋的碳捕获. 密集的货架水运输 (DSWT) 是将海藻碎片移动到海上,出口大量碳的关键.
科学领域:
- 海洋生态海洋生态学
- 海洋学 海洋学 海洋学
- 碳循环研究 碳循环研究
背景情况:
- 鱼森林是重要的碳汇,但海上鱼碎片的出口仍然不太了解.
- 了解海藻碳出口对于准确的全球碳预算评估至关重要.
研究的目的:
- 量化密架水运输 (DSWT) 在从大陆架出口海藻碎片的有效性.
- 评估海藻森林对通过跨架运输对海洋碳捕获的贡献.
主要方法:
- 模拟沉没的海藻碎片运输建模.
- 调查了从澳大利亚大南方珊瑚礁出口的海藻碎片.
- 量化了DSWT在海藻碎片出口中在大陆架边缘的作用.
主要成果:
- DSWT是通过大陆架边缘运输藻碎片的主要机制.
- 每年51%的模拟海藻碎片被出口,如果考虑分解,则减少到17-29%.
- 如果没有DSWT,鱼碎片的出口是可以忽略不计的.
结论:
- 海藻森林对海洋碳捕获的贡献远远超过之前的估计.
- 在中度地区,DSWT是鱼碳出口的关键,广泛的过程.
- 为了完善全球碳循环模型,需要更好地了解海藻碎片的运输.
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