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在内陆和沿海水域固的全球重要性

Robinson W Fulweiler^1,2, Shelby Rinehart³, Jason Taylor⁴

¹Department of Earth and Environment, Boston University, Boston, MA, USA.

Science (New York, N.Y.)

|June 12, 2025

概括

在内陆和沿海水域生物固是广泛和重要的. 这些水生系统占全球固量的15%,其中内陆水是主要的贡献者.

科学领域:

环境科学
生物地质化学
水生态学

背景情况:

生物固对于全球初级生产和气候调节至关重要.
之前的固定估计主要集中在陆地和开放海洋环境中.
在全球固评估中,内陆和沿海水生系统在很大程度上被忽视.

研究的目的:

评估内陆和沿海水生系统中的固定率.
确定这些被忽视的水生环境对全球固的贡献.
突出这些系统在全球循环中的重要性.

主要方法:

对内陆和沿海水域固现有数据进行全面审查和综合.
在各种水生息地,包括水柱和沉积物过程中评估固.
使用保守方法估计固定率.

主要成果:

在内陆和沿海水生系统中,固是无处不在的,其速度在六个数量级上有所不同.
尽管这些系统占全球面积的不到10%,但每年固定约40千克的.
在这些环境中,内陆水生系统占总固定量的一半以上.

结论:

内陆和沿海水域是全球生物固的重要组成部分,以前被低估了.
这些发现强调了这些水生生态系统在支持全球初级生产和影响生物地化学循环方面的关键作用.
未来的全球气预算必须纳入内陆和沿海水生系统的重大贡献.

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