对陆地二氧化循环和对流域的出口流的生物控制
Louis A Derry1, Andrew C Kurtz, Karen Ziegler
1Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, New York 14853, USA. lad9@cornell.edu
Nature
|February 18, 2005
概括
是一种,是一种.
科学领域:
- 生物地质化学生物地质化学
- 土壤科学 土壤科学
- 地质化学 地质化学
背景情况:
- 对于海洋和陆地生命,土壤健康和大气二氧化碳调节至关重要.
- 传统上,流被归因于矿物气候变化和溶解.
- 植物吸收和垃圾回收创造了一个重要的土壤-植物环.
研究的目的:
- 在夏威夷的玄武岩土中区分气候变化和生物的氧循环.
- 为了确定溪水中二氧化的主要来源.
主要方法:
- 来自夏威夷玄武岩土壤的土壤水的分析.
- 使用/的比率来区分气候变化和生物源.
主要成果:
- 夏威夷溪水中的大部分石来源于生物性石池.
- 直接的矿物气候变化对流流量贡献的比例较小.
结论:
- 在这些系统中,生物基性循环在出口中发挥着主导作用.
- 预计在植物吸收量高和/或耗的土壤中,对循环有强大的生物控制.
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