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Title: Carbonyl sulfide exchange in soils for better estimates of ecosystem carbon uptake

Journal Article · · Atmospheric Chemistry and Physics (Online)
 [1];  [2];  [3];  [4];  [5];  [2]
  1. Univ. of California-Merced, Merced, CA (United States). Dept. of Environmental Engineering; Carnegie Institution for Science, Stanford, CA (United States)
  2. Univ. of California-Merced, Merced, CA (United States). Dept. of Environmental Engineering
  3. Carnegie Institution for Science, Stanford, CA (United States)
  4. Univ. of Illinois-Chicago, Chicago, IL (United States). Dept. of Earth and Environmental Sciences
  5. Univ. of Wisconsin, Madison, WI (United States). Dept. of Atmospheric and Oceanic Sciences

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, >800 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. Furthermore, 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.

Research Organization:
Oregon State Univ., Corvallis, OR (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER); National Science Foundation (NSF)
Grant/Contract Number:
FG02-04ER63917; FG02-04ER63911; 1433257
OSTI ID:
1271010
Alternate ID(s):
OSTI ID: 1361496
Journal Information:
Atmospheric Chemistry and Physics (Online), Vol. 16, Issue 6; ISSN 1680-7324
Publisher:
European Geosciences UnionCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 45 works
Citation information provided by
Web of Science

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Cited By (19)

In situ soil COS exchange of a temperate mountain grassland under simulated drought journal January 2017
Carbonyl sulfide (COS) and carbon disulfide (CS2) exchange fluxes between cotton fields and the atmosphere in the arid area in Xinjiang, China journal March 2019
Large historical growth in global terrestrial gross primary production journal April 2017
Peak growing season gross uptake of carbon in North America is largest in the Midwest USA journal May 2017
Soil exchange rates of COS and CO18O differ with the diversity of microbial communities and their carbonic anhydrase enzymes journal September 2018
Assessing canopy performance using carbonyl sulfide measurements journal April 2018
Coupled Biological and Abiotic Mechanisms Driving Carbonyl Sulfide Production in Soils journal June 2018
Nitrogen Fertilization Reduces the Capacity of Soils to Take up Atmospheric Carbonyl Sulphide journal November 2018
A top-down approach of surface carbonyl sulfide exchange by a Mediterranean oak forest ecosystem in southern France journal January 2016
Direct oceanic emissions unlikely to account for the missing source of atmospheric carbonyl sulfide journal January 2017
Disentangling the rates of carbonyl sulfide (COS) production and consumption and their dependency on soil properties across biomes and land use types journal January 2018
Soil–atmosphere exchange of carbonyl sulfide in a Mediterranean citrus orchard journal January 2019
Dynamics of canopy stomatal conductance, transpiration, and evaporation in a temperate deciduous forest, validated by carbonyl sulfide uptake journal January 2017
Reviews and syntheses: Turning the challenges of partitioning ecosystem evaporation and transpiration into opportunities journal January 2019
Microbial community responses determine how soil–atmosphere exchange of carbonyl sulfide, carbon monoxide, and nitric oxide responds to soil moisture journal January 2019
Soil fluxes of carbonyl sulfide (COS), carbon monoxide, and carbon dioxide in a boreal forest in southern Finland journal January 2018
Reviews and syntheses: Carbonyl sulfide as a multi-scale tracer for carbon and water cycles journal January 2018
Reviews and syntheses: Turning the challenges of partitioning ecosystem evaporation and transpiration into opportunities text January 2019
Reviews and syntheses: Turning the challenges of partitioning ecosystem evaporation and transpiration into opportunities text January 2019