从融化的北极海冰中出口藻类生物质
Antje Boetius1, Sebastian Albrecht, Karel Bakker
1Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research, 27515 Bremerhaven, Germany. antje.boetius@awi.de
概括
在北极,冰藻生物量在创纪录的夏季海冰最小值期间沉入深海底. 这一发现有助于评估气候变化对北极生态系统的影响.
科学领域:
- 海洋学 海洋学 海洋学
- 海洋生物学 海洋生物学
- 气候科学 气候科学
背景情况:
- 北极的冰下初级生产受到季节性,冰盖和水柱分层的限制,限制了营养的可用性.
- 北极海冰面积在2012年夏天达到创纪录的最低点,这是冰下藻类生长的关键时期.
研究的目的:
- 调查冰藻生物质沉积在北极中部盆地的深海底,在记录海冰最低的时期.
- 为评估气候变化对北极生产力,生物多样性和生态功能的影响提供数据.
主要方法:
- 研究船Polarstern在2012年夏天在北极中东盆地 (82°89°北,30°130°东) 进行了一次巡航.
- 收集了对冰藻生物质沉积到深海底的测量结果.
主要成果:
- 在北极中部盆地观察到广泛的冰藻生物质沉积.
- 平均沉积率为每平方米9克的碳.
结论:
- 该研究强调了主要产品的大量出口到北极中部深海.
- 这些发现为了解气候变化导致北极海冰减少的生态后果提供了至关重要的数据.
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