DOI: 10.1002/2015GB005266
Scopus记录号: 2-s2.0-84959169053
论文题名: Global boron cycle in the Anthropocene
作者: Schlesinger W ; H ; , Vengosh A
刊名: Global Biogeochemical Cycles
ISSN: 8866236
出版年: 2016
卷: 30, 期: 2 起始页码: 219
结束页码: 230
语种: 英语
英文关键词: biogeochemistry
; boron
; global cycle
Scopus关键词: Anthropocene
; atmospheric deposition
; biogeochemical cycle
; boron
; combustion
; continental crust
; flux measurement
; fossil fuel
; global perspective
; mobilization
; residence time
; seawater
英文摘要: This paper presents a revised and updated synthesis of the biogeochemical cycle of boron at the Earth's surface, where the largest fluxes are associated with the injection of sea-salt aerosols to the atmosphere (1.44 Tg B/yr), production and combustion of fossil fuels (1.2 Tg B/yr), atmospheric deposition (3.48 Tg B/yr), the mining of B ores (1.1 Tg B/yr), and the transport of dissolved and suspended matter in rivers (0.80 Tg B/yr). The new estimates show that anthropogenic mobilization of B from the continental crust exceeds the naturally occurring processes, resulting in substantial fluxes to the ocean and the hydrosphere. The anthropogenic component contributes 81% of the flux in rivers. The mean residence time for B in seawater supports the use of δ11B in marine carbonates as an index of changes in the pH of seawater over time periods of > 1 Ma. ©2016. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/77889
Appears in Collections: 气候变化事实与影响
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作者单位: Division of Earth and Ocean Sciences, Nicholas School of the Environment, Duke University, Durham, NC, United States; Cary Institute of Ecosystem Studies, Millbrook, NY, United States
Recommended Citation:
Schlesinger W,H,, Vengosh A. Global boron cycle in the Anthropocene[J]. Global Biogeochemical Cycles,2016-01-01,30(2)