DOI: 10.1111/gbi.12228
Scopus记录号: 2-s2.0-85012083549
论文题名: The geobiological nitrogen cycle: From microbes to the mantle
作者: Zerkle A.L. ; Mikhail S.
刊名: Geobiology
ISSN: 1472-4677
EISSN: 1472-4669
出版年: 2017
卷: 15, 期: 3 起始页码: 343
结束页码: 352
语种: 英语
Scopus关键词: atmosphere-biosphere interaction
; atmospheric gas
; biogeochemistry
; Earth
; innovation
; nitrogen
; nitrogen cycle
; petrology
; temporal variation
; soil
; astronomy
; atmosphere
; chemistry
; evolution
; geology
; nitrogen cycle
; soil
; theoretical model
; Atmosphere
; Biological Evolution
; Earth (Planet)
; Geology
; Models, Theoretical
; Nitrogen Cycle
; Soil
Scopus学科分类: Earth and Planetary Sciences: General Earth and Planetary Sciences
; Environmental Science: General Environmental Science
; Agricultural and Biological Sciences: Ecology, Evolution, Behavior and Systematic
英文摘要: Nitrogen forms an integral part of the main building blocks of life, including DNA, RNA, and proteins. N2 is the dominant gas in Earth's atmosphere, and nitrogen is stored in all of Earth's geological reservoirs, including the crust, the mantle, and the core. As such, nitrogen geochemistry is fundamental to the evolution of planet Earth and the life it supports. Despite the importance of nitrogen in the Earth system, large gaps remain in our knowledge of how the surface and deep nitrogen cycles have evolved over geologic time. Here, we discuss the current understanding (or lack thereof) for how the unique interaction of biological innovation, geodynamics, and mantle petrology has acted to regulate Earth's nitrogen cycle over geologic timescales. In particular, we explore how temporal variations in the external (biosphere and atmosphere) and internal (crust and mantle) nitrogen cycles could have regulated atmospheric pN2. We consider three potential scenarios for the evolution of the geobiological nitrogen cycle over Earth's history: two in which atmospheric pN2 has changed unidirectionally (increased or decreased) over geologic time and one in which pN2 could have taken a dramatic deflection following the Great Oxidation Event. It is impossible to discriminate between these scenarios with the currently available models and datasets. However, we are optimistic that this problem can be solved, following a sustained, open-minded, and multidisciplinary effort between surface and deep Earth communities. © 2017 The Authors Geobiology Published by John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/85055
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: School of Earth & Environmental Sciences and Centre for Exoplanet Science, University of St Andrews, St Andrews, Fife, United Kingdom
Recommended Citation:
Zerkle A.L.,Mikhail S.. The geobiological nitrogen cycle: From microbes to the mantle[J]. Geobiology,2017-01-01,15(3)