北海中溶解的微量元素和营养物质 - - 目前的基线
Anna Siems1,2, Tristan Zimmermann1, Tina Sanders3
1Institute of Coastal Environmental Chemistry, Helmholtz-Zentrum Hereon, Geesthacht, Germany.
Environmental monitoring and assessment
|May 11, 2024
概括
海洋初级生产驱动碳储存,受营养素和金属的影响. 这项研究建立了北海营养物质和金属度的基线,揭示了日益增加的限制和人为的加多输入.
科学领域:
- 海洋化学和生物地球化学
- 海洋学 海洋学 海洋学
- 环境科学环境科学
背景情况:
- 海洋初级生产是碳储存的关键,依靠主要营养素和微量金属.
- 沿海海洋的碳出口是可变的,受到污染和肥胖化的影响.
- 对营养素和金属的准确基线数据对于模拟未来的碳储存至关重要.
研究的目的:
- 建立北海溶解营养物质和金属度的基线.
- 了解北海生态系统中各种元素的来源和行为.
- 评估当前的营养限制和人为影响.
主要方法:
- 在北海和斯卡格拉克海域收集了337个水样,深度不同.
- 测量了溶解营养素 (NH4+,NO3-,PO43-,SiO44-) 和26种金属的度.
- 利用主要组件分析来分类元素的行为.
主要成果:
- 这些元素被分为海水标记物 (例如,Mo,U,V),回收指标 (例如,NO3-,PO43-,SiO44-),河流/人类输入 (例如,Ni,Cu,Gd) 等.
- 北海显示越来越多的限制.
- 在德国海湾发现了人为加多输入增加的证据.
结论:
- 这项研究为北海生物地球化学过程提供了关键的基线数据.
- 了解元素的行为对于预测碳储存变化至关重要.
- 人类影响,如加多输入,在特定地区是显著的.
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