scholarly journals Formation of Carbonyl Sulfide by the Reaction of Carbon Monoxide and Inorganic Polysulfides

2004 ◽  
Vol 38 (17) ◽  
pp. 4704-4704
Author(s):  
A. Kamyshny ◽  
A. Goifman ◽  
D. Rizkov ◽  
O. Lev
Keyword(s):  
Carbon Monoxide ◽  
Carbonyl Sulfide ◽  
Inorganic Polysulfides

Formation of Carbonyl Sulfide by the Reaction of Carbon Monoxide and Inorganic Polysulfides

2003 ◽  
Vol 37 (9) ◽  
pp. 1865-1872 ◽  
Author(s):  
A. Kamyshny ◽  
A. Goifman ◽  
D. Rizkov ◽  
O. Lev
Keyword(s):  
Carbon Monoxide ◽  
Carbonyl Sulfide ◽  
Inorganic Polysulfides

Carbonyl sulfide (OCS) and carbon monoxide (CO) in natural waters: evidence of a coupled production pathway

1998 ◽  
Vol 62 (1-2) ◽  
pp. 89-101 ◽  
Author(s):  
Willer H. Pos ◽  
Daniel D. Riemer ◽  
Rod G. Zika
Keyword(s):  
Carbon Monoxide ◽  
Natural Waters ◽  
Carbonyl Sulfide

scholarly journals Soil fluxes of carbonyl sulfide (COS), carbon monoxide, and carbon dioxide in a boreal forest in southern Finland

2018 ◽  
Vol 18 (2) ◽  
pp. 1363-1378 ◽  
Author(s):  
Wu Sun ◽  
Linda M. J. Kooijmans ◽  
Kadmiel Maseyk ◽  
Huilin Chen ◽  
Ivan Mammarella ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Soil Respiration ◽  
Boreal Forest ◽  
Boreal Forests ◽  
Carbonyl Sulfide ◽  
Co2 Flux ◽  
Growing Season ◽  
Uptake Rates ◽  
Scots Pine Forest ◽  
Microbial Groups

Abstract. Soil is a major contributor to the biosphere–atmosphere exchange of carbonyl sulfide (COS) and carbon monoxide (CO). COS is a tracer with which to quantify terrestrial photosynthesis based on the coupled leaf uptake of COS and CO2, but such use requires separating soil COS flux, which is unrelated to photosynthesis, from ecosystem COS uptake. For CO, soil is a significant natural sink that influences the tropospheric CO budget. In the boreal forest, magnitudes and variabilities of soil COS and CO fluxes remain poorly understood. We measured hourly soil fluxes of COS, CO, and CO2 over the 2015 late growing season (July to November) in a Scots pine forest in Hyytiälä, Finland. The soil acted as a net sink of COS and CO, with average uptake rates around 3 pmol m−2 s−1 for COS and 1 nmol m−2 s−1 for CO. Soil respiration showed seasonal dynamics controlled by soil temperature, peaking at around 4 µmol m−2 s−1 in late August and September and dropping to 1–2 µmol m−2 s−1 in October. In contrast, seasonal variations of COS and CO fluxes were weak and mainly driven by soil moisture changes through diffusion limitation. COS and CO fluxes did not appear to respond to temperature variation, although they both correlated well with soil respiration in specific temperature bins. However, COS : CO2 and CO : CO2 flux ratios increased with temperature, suggesting possible shifts in active COS- and CO-consuming microbial groups. Our results show that soil COS and CO fluxes do not have strong variations over the late growing season in this boreal forest and can be represented with the fluxes during the photosynthetically most active period. Well-characterized and relatively invariant soil COS fluxes strengthen the case for using COS as a photosynthetic tracer in boreal forests.

scholarly journals Microbial community responses determine how soil-atmosphere exchange of carbonyl sulfide, carbon monoxide and nitric oxide respond to soil moisture

2018 ◽  
Author(s):  
Thomas Behrendt ◽  
Elisa C. P. Catão ◽  
Rüdiger Bunk ◽  
Zhigang Yi ◽  
Elena Schwer ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Carbon Monoxide ◽  
Soil Moisture ◽  
Atmospheric Chemistry ◽  
Carbonyl Sulfide ◽  
Flux Ratio ◽  
Sulfur Cycle ◽  
Aerosol Formation ◽  
Bisphosphate Carboxylase ◽  
Carbon Dioxide Co2

Abstract. Carbonyl sulfide (OCS) plays an important role in the global sulfur cycle and is relevant for climate change due to its role as a greenhouse gas, in aerosol formation and atmospheric chemistry. The similarities of the carbon dioxide (CO2) and OCS molecules within chemical and plant metabolic pathways have led to the use of OCS as a proxy for global gross CO2 fixation by plants (GPP). However, unknowns such as the OCS exchange from soils, where simultaneous OCS production (POCS) and consumption (UOCS) occur, currently limits the use of OCS as a GPP proxy. We estimated POCS and UOCS by measuring net fluxes of OCS, carbon monoxide (CO) and nitric oxide (NO) in a dynamic chamber system fumigated with air containing different [OCS]. Several different soils were rewetted and soil-air exchange monitored as soils dried out to investigate responses to changing moisture levels. A major control of OCS exchange is the total amount of available S in the soil. POCS production rates were highest for soils at WFPS > 60 % and rates were negatively related to thiosulfate concentrations. These soils flipped from being net sources to net sinks of OCS at moderate moisture levels (WFPS 15 to 37 %). By measuring CO and NO while fumigating soils at different levels of OCS, we could show that CO consumption and NO exchange are linked to UOCS under moderate soil moisture. Based on the OCS : CO flux ratio two different UOCS processes could be separated. For one of the investigated soils, we demonstrated changes in microbial activity and red-like cbbL and amoA genes that suggested shifts in the UOCS processes with moisture and OCS concentration. This supports the view that Ribulose-1,5-Bisphosphate-Carboxylase (RubisCO) plays an important role for UOCS and demonstrates a link to the nitrogen cycle.

Sign in / Sign up

Export Citation Format

Share Document