Global Sulfur Budgets

Ecology ◽  
1984 ◽  
Vol 65 (4) ◽  
pp. 1336-1336
Author(s):  
Robert W. Howarth
Keyword(s):  
Sulfur Budgets

Effects of decreased atmospheric deposition on the sulfur budgets of two Dutch moorland pools

1993 ◽  
Vol 23 (2) ◽  
pp. 119-144 ◽  
Author(s):  
Emile CL. Marnette ◽  
Harm Houweling ◽  
Herman Van Dam ◽  
Jan Willem Erisman
Keyword(s):  
Atmospheric Deposition ◽  
Moorland Pools ◽  
Sulfur Budgets

scholarly journals Prominent role of sulfate reduction in robust sulfur retention in subtropical soil

2021 ◽  
Author(s):  
Qian Yu ◽  
Jan Mulder ◽  
Gaoyue Si ◽  
Longfei Yu ◽  
Ronghua Kang ◽  
...  
Keyword(s):  
Sulfate Reduction ◽  
Balance Model ◽  
Sulfur Deposition ◽  
Mass Balance Model ◽  
Sulfate Adsorption ◽  
Subtropical Soil ◽  
Sulfur Budgets ◽  
Soil Sulfur ◽  
Annual Flux

Abstract Sulfur budgets in catchments indicated that about 80% of the deposited sulfur was retained in the subtropical soil, it alleviates the historical acidification caused by elevated deposition. The strong sulfur retention was attributed to the reversible sulfate adsorption in previous studies. Here we report that sulfate reduction is a prominent yet thus far overlooked mechanism for sulfur retention, based upon the comprehensive evidence of soil sulfur storage and multi-isotope within entire soil profile along a hydrological continuum in a typical subtropical catchment of China. Using a dual isotopic mass balance model, we determined that annual flux of reduction accounted for approximately 38% of sulfur retention, which was close to the proportion of reduced species in soil. Consequently, the release of sulfur legacy would be less serious with the decreasing sulfur deposition in China, compared to the projections only considering adsorption.

scholarly journals Lake/watershed sulfur budgets and their response to decreases in atmospheric sulfur deposition: watershed and climate controls

2013 ◽  
Vol 27 (5) ◽  
pp. 710-720 ◽  
Author(s):  
Myron J. Mitchell ◽  
Charles T. Driscoll ◽  
Patrick J. McHale ◽  
Karen M. Roy ◽  
Zheng Dong
Keyword(s):  
Sulfur Deposition ◽  
Climate Controls ◽  
Atmospheric Sulfur ◽  
Sulfur Budgets

scholarly journals Oceanic emissions of dimethyl sulfide and methanethiol and their contribution to sulfur dioxide production in the marine atmosphere

2021 ◽  
Author(s):  
Gordon A. Novak ◽  
Delaney B. Kilgour ◽  
Christopher M. Jernigan ◽  
Michael P. Vermeuel ◽  
Timothy H. Bertram
Keyword(s):  
Dimethyl Sulfide ◽  
Limit Of Detection ◽  
Interquartile Range ◽  
Marine Atmosphere ◽  
Additional Source ◽  
Flux Measurements ◽  
Oceanic Emissions ◽  
Sulfur Budgets ◽  
The Impact ◽  
Volatile Sulfur

Abstract. Oceanic emissions of dimethyl sulfide (CH3SCH3, DMS) have long been recognized to impact aerosol particle composition and size, the concentration of cloud condensation nuclei (CCN), and Earth’s radiation balance. The impact of oceanic emissions of methanethiol (CH3SH, MeSH), which is produced by the same oceanic precursor as DMS, on the volatile sulfur budget of the marine atmosphere is largely unconstrained. Here we present direct flux measurements of MeSH oceanic emissions using the eddy covariance (EC) method with a high-resolution proton-transfer-reaction time-of-flight mass spectrometer (PTR-ToFMS) detector and compare them to simultaneous flux measurements of DMS emissions from a coastal ocean site. Campaign mean mixing ratios of DMS and MeSH were 72 ppt (28–90 ppt interquartile range) and 19.1 ppt (7.6–24.5 ppt interquartile range) respectively. Campaign mean (and interquartile range) emission fluxes of DMS (FDMS) and MeSH (FMeSH) were 1.13 (0.53–1.61) and 0.21 (0.10–0.31) ppt m s-1 respectively. Linear least squares regression of observed MeSH and DMS flux indicates the emissions are highly correlated with each other (R2 = 0.65) over the course of the campaign, consistent with a shared oceanic source. The campaign mean DMS to MeSH flux ratio (FDMS:FMeSH) was 5.5 ± 3.0 calculated from the ratio of 304 individual coincident measurements of FDMS and FMeSH. Measured FDMS:FMeSH was weakly correlated (R2 = 0.15) with ocean chlorophyll concentrations, with FDMS:FMeSH reaching a maximum of 10.8 ± 4.4 during a phytoplankton bloom period. No other volatile sulfur compounds were observed by PTR-ToFMS to have a resolvable emission flux above their flux limit of detection or to have a gas phase mixing ratio consistently above their limit of detection during the study period, suggesting DMS and MeSH are the dominant volatile organic sulfur compounds emitted from the ocean at this site. The impact of this MeSH emission source on atmospheric budgets of sulfur dioxide (SO2) was evaluated by implementing observed emissions into a coupled ocean-atmosphere chemical box model using a newly compiled MeSH oxidation mechanism. Model results suggest that MeSH emissions lead to afternoon instantaneous SO2 production of 2.5 ppt hr-1, which accounts for 30 % of the instantaneous SO2 production in the marine boundary layer at the mean measured FDMS and FMeSH. This contribution of MeSH to SO2 production is driven by a higher effective yield of SO2 from MeSH oxidation and the shorter oxidation lifetime of MeSH compared to DMS. This large additional source of marine SO2 has not been previously considered in global models of marine sulfur cycling. The field measurements and modeling results presented here demonstrate that MeSH is an important contributor to volatile sulfur budgets in the marine atmosphere, and must be measured along with DMS in order to constrain marine sulfur budgets. This large additional source of marine reduced sulfur from MeSH will contribute to particle formation and growth and CCN abundance in the marine atmosphere, with subsequent impacts on climate.

Comparisons of watershed sulfur budgets in southeast Canada and northeast US: new approaches and implications

2010 ◽  
Vol 103 (1-3) ◽  
pp. 181-207 ◽  
Author(s):  
Myron J. Mitchell ◽  
Gary Lovett ◽  
Scott Bailey ◽  
Fred Beall ◽  
Doug Burns ◽  
...  
Keyword(s):  
New Approaches ◽  
Sulfur Budgets ◽  
Northeast Us
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