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Global Uptake of Carbonyl Sulfide (Cos) by Terrestrial Vegetation: Estimates Corrected by Deposition Velocities Normalized to the Uptake of Carbon Dioxide (Co2) : Volume 2, Issue 1 (31/01/2005)

By Sandoval-soto, L.

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Book Id: WPLBN0003984514
Format Type: PDF Article :
File Size: Pages 19
Reproduction Date: 2015

Title: Global Uptake of Carbonyl Sulfide (Cos) by Terrestrial Vegetation: Estimates Corrected by Deposition Velocities Normalized to the Uptake of Carbon Dioxide (Co2) : Volume 2, Issue 1 (31/01/2005)  
Author: Sandoval-soto, L.
Volume: Vol. 2, Issue 1
Language: English
Subject: Science, Biogeosciences, Discussions
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2005
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Hobe, M. V., Stanimirov, M., Wild, A., Schmitt, V., Sandoval-Soto, L., Valdes, J., & Kesselmeier, J. (2005). Global Uptake of Carbonyl Sulfide (Cos) by Terrestrial Vegetation: Estimates Corrected by Deposition Velocities Normalized to the Uptake of Carbon Dioxide (Co2) : Volume 2, Issue 1 (31/01/2005). Retrieved from http://www.ebooklibrary.org/


Description
Description: Max Planck Institute for Chemistry, Biogeochemistry Dept., Joh.-J.-Becher-Weg 27, 55128 Mainz, Germany. COS uptake by trees, as observed under dark/light changes and under application of the plant hormone abscisic acid, exhibited a strong correlation with the CO2 assimilation rate and the stomatal conductance. As the uptake of COS occurred exclusively through the stomata we compared experimentally derived and re-evaluated deposition velocities (Vd for COS and CO2). We show that Vd of COS is generally significantly larger than that of CO2. We therefore introduced this attribute into a new global estimate of COS fluxes into vegetation. The global COS uptake by vegetation as estimated by the new model ranges between 0.69-1.40 Tg a-1, based on the Net Primary Productivity (NPP). Taking into account Gross Primary Productivity (GPP) the deposition estimate ranges between 1.37-2.81 Tg a-1 (0.73-1.50 Tg S a-1). We believe that in order to obtain accurate and reliable global NPP-based estimates for the COS flux into vegetation, the different deposition velocities of COS and CO2 must be taken into account.

Summary
Global uptake of carbonyl sulfide (COS) by terrestrial vegetation: Estimates corrected by deposition velocities normalized to the uptake of carbon dioxide (CO2)


 

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