DOI: 10.1016/j.quascirev.2016.09.009
Scopus记录号: 2-s2.0-84992648176
论文题名: Sea level and ground water table depth (WTD): A biogeochemical pacemaker for glacial-interglacial cycling
作者: Cowling S.A.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2016
卷: 151 起始页码: 309
结束页码: 314
语种: 英语
英文关键词: Carbon cycle
; Coastal wetlands
; Glacial-interglacial cycles
; Groundwater table
; Sea level
Scopus关键词: Ecosystems
; Glacial geology
; Groundwater
; Groundwater flow
; Sediments
; Wetlands
; Carbon compounds
; Carbon cycles
; Climate feedbacks
; Coastal wetlands
; Glacial-interglacial cycles
; Ground water table
; Interglacial periods
; Source of waters
; Sea level
; baseflow
; carbon cycle
; climate feedback
; coastal wetland
; decomposition
; energy flux
; glacial-interglacial cycle
; groundwater
; land-sea interaction
; nutrient cycling
; sea level change
; water table
; wetland
; White tip die-back phytoplasma
英文摘要: The role that changes in sea level have on potential carbon-climate feedbacks are discussed as a potential contributing mechanism for terminating glacial periods. Focus will be on coastal wetlands because these systems can be substantially altered by changing sea level and ground water table depth (WTD); in addition to being important moderators of the exchange of nutrients and energy between terrestrial and marine ecosystems. A hypothesis is outlined that describes how the release of carbon from formerly anaerobic wetland soils and sediments can influence climate when sea levels begin to decline. As ground WTD deepens and eventually recedes from the surface, coastal wetland basins may become isolated from their belowground source of water. With their primary source of base flow removed, coastal wetlands likely dried up, promoting decomposition of the carbon compounds buried in their sediments. Depending on the timing of basin isolation and the timing of decomposition, glacial sea level lows could have triggered a relatively large positive carbon feedback on climate warming, just at the time when a new interglacial period is about to begin. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59415
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Earth Sciences, University of Toronto, 22 Russell Street, Toronto, Ontario, Canada
Recommended Citation:
Cowling S.A.. Sea level and ground water table depth (WTD): A biogeochemical pacemaker for glacial-interglacial cycling[J]. Quaternary Science Reviews,2016-01-01,151