DOI: 10.1111/gcb.13336
论文题名: An evaluation of abiotic carbon sinks in deserts
作者: Schlesinger W.H.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2017
卷: 23, 期: 1 起始页码: 25
结束页码: 27
语种: 英语
英文关键词: carbon sequestration
; deserts
; groundwater
; missing sink
; soil carbon
英文摘要: Recent field studies have reported anomalous CO2 uptake using eddy-covariance techniques in arid and semiarid ecosystems. The rates of CO2 uptake are incompatible with changes in situ of organic carbon pools. Here, I examine several potential mechanisms of abiotic CO2 uptake in arid and semiarid soils: atmospheric pressure pumping, carbonate dissolution, and percolation of soil water through the vadose zone. Each mechanism is deemed inadequate to explain the observations of the eddy-covariance systems, which must now be questioned for their accuracy in desert ecosystems. © 2016 John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61227
Appears in Collections: 影响、适应和脆弱性
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作者单位: Nicholas School of the Environment, Duke University, Durham, NC, United States; Cary Institute of Ecosystem Studies, Box AB, Millbrook, NY, United States
Recommended Citation:
Schlesinger W.H.. An evaluation of abiotic carbon sinks in deserts[J]. Global Change Biology,2017-01-01,23(1)