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Open AccessFeature PaperArticle

Nitrogen Fertilization Reduces the Capacity of Soils to Take up Atmospheric Carbonyl Sulphide

INRA, ISPA UMR 1391, 33130 Villenave d’Ornon, France
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Soil Syst. 2018, 2(4), 62; https://doi.org/10.3390/soilsystems2040062
Received: 28 August 2018 / Revised: 10 November 2018 / Accepted: 13 November 2018 / Published: 15 November 2018
(This article belongs to the Special Issue Formation and Fluxes of Soil Trace Gases)
Soils are an important carbonyl sulphide (COS) sink. However, they can also act as sources of COS to the atmosphere. Here we demonstrate that variability in the soil COS sink and source strength is strongly linked to the available soil inorganic nitrogen (N) content across a diverse range of biomes in Europe. We revealed in controlled laboratory experiments that a one-off addition of ammonium nitrate systematically decreased the COS uptake rate whilst simultaneously increasing the COS production rate of soils from boreal and temperate sites in Europe. Furthermore, we found strong links between variations in the two gross COS fluxes, microbial biomass, and nitrate and ammonium contents, providing new insights into the mechanisms involved. Our findings provide evidence for how the soil–atmosphere exchange of COS is likely to vary spatially and temporally, a necessary step for constraining the role of soils and land use in the COS mass budget. View Full-Text
Keywords: COS production; COS uptake; Carbonic anhydrase; nitrate; ammonium; sulfur; microbial community COS production; COS uptake; Carbonic anhydrase; nitrate; ammonium; sulfur; microbial community
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Kaisermann, A.; Jones, S.P.; Wohl, S.; Ogée, J.; Wingate, L. Nitrogen Fertilization Reduces the Capacity of Soils to Take up Atmospheric Carbonyl Sulphide. Soil Syst. 2018, 2, 62.

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