Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.5194/acp-16-3711-2016 |
Carbonyl sulfide exchange in soils for better estimates of ecosystem carbon uptake | |
Whelan, Mary E.1,2; Hilton, Timothy W.1; Berry, Joseph A.2; Berkelhammer, Max3; Desai, Ankur R.4; Campbell, J. Elliott1 | |
通讯作者 | Whelan, Mary E. |
来源期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2016 |
卷号 | 16期号:6页码:3711-3726 |
英文摘要 | Carbonyl sulfide (COS) measurements are one of the emerging tools to better quantify gross primary production (GPP), the largest flux in the global carbon cycle. COS is a gas with a similar structure to CO2; COS uptake is thought to be a proxy for GPP. However, soils are a potential source or sink of COS. This study presents a framework for understanding soil-COS interactions. Excluding wetlands, most of the few observations of isolated soils that have been made show small uptake of atmospheric COS. Recently, a series of studies at an agricultural site in the central United States found soil COS production under hot conditions an order of magnitude greater than fluxes at other sites. To investigate the extent of this phenomenon, soils were collected from five new sites and incubated in a variety of soil moisture and temperature states. We found that soils from a desert, an oak savannah, a deciduous forest, and a rainforest exhibited small COS fluxes, behavior resembling previous studies. However, soil from an agricultural site in Illinois, > 800aEuro-km away from the initial central US study site, demonstrated comparably large soil fluxes under similar conditions. These new data suggest that, for the most part, soil COS interaction is negligible compared to plant uptake of COS. We present a model that anticipates the large agricultural soil fluxes so that they may be taken into account. While COS air-monitoring data are consistent with the dominance of plant uptake, improved interpretation of these data should incorporate the soil flux parameterizations suggested here. |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000374702300003 |
WOS关键词 | ORGANIC-MATTER ; DIMETHYL SULFIDE ; GLOBAL BUDGET ; TRACE GASES ; COS ; FOREST ; CONSUMPTION ; ATMOSPHERE ; AMBIENT ; PHOTOSYNTHESIS |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/191559 |
作者单位 | 1.Univ Calif Merced, Dept Environm Engn, Merced, CA USA; 2.Carnegie Inst Sci, Stanford, CA USA; 3.Univ Illinois, Dept Earth & Environm Sci, Chicago, IL USA; 4.Univ Wisconsin, Dept Atmospher & Ocean Sci, Madison, WI USA |
推荐引用方式 GB/T 7714 | Whelan, Mary E.,Hilton, Timothy W.,Berry, Joseph A.,et al. Carbonyl sulfide exchange in soils for better estimates of ecosystem carbon uptake[J],2016,16(6):3711-3726. |
APA | Whelan, Mary E.,Hilton, Timothy W.,Berry, Joseph A.,Berkelhammer, Max,Desai, Ankur R.,&Campbell, J. Elliott.(2016).Carbonyl sulfide exchange in soils for better estimates of ecosystem carbon uptake.ATMOSPHERIC CHEMISTRY AND PHYSICS,16(6),3711-3726. |
MLA | Whelan, Mary E.,et al."Carbonyl sulfide exchange in soils for better estimates of ecosystem carbon uptake".ATMOSPHERIC CHEMISTRY AND PHYSICS 16.6(2016):3711-3726. |
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