Annual cycle of gaseous sulfur emissions from a New England Spartina alterniflora marsh |
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| Institution: | 1. School of Biological Sciences, The University of QLD, Brisbane 4072, Australia;2. School of Biological Science, The University of Sydney, Sydney 2006, Australia;1. Upper Midwest Environmental Sciences Center, U.S. Geological Survey, 2630 Fanta Reed Road, La Crosse 54603, WI, USA;2. Department of Forestry and Natural Resources, Purdue University, 195 Marstellar Street, West Lafayette 47907, IN, USA;1. IPMA - Portuguese Institute for the Sea and Atmosphere, R. Alfredo Magalhães Ramalho, 6, 1495-006 Lisbon, Portugal;2. CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal |
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| Abstract: | A flow-through chamber was used to measure the net gaseous sulfur fluxes (emission minus uptake) to the atmosphere from an area of Spartina alterniflora in a New England salt marsh. The fluxes of hydrogen sulfide, dimethyl sulfide, carbonyl sulfide, carbon disulfide and dimethyl disulfide were measured monthly over a year to obtain the annual emission estimates. Peak releases of the various sulfur gases did not occur simultaneously but were measured from July through to October depending on the individual sulfur species. The total annual emission was estimated to be 5.8 g S m−2 y−1, with dimethyl sulfide (49% of the total) and hydrogen sulfide (35% of the total) the major components emitted. The emissions of the other sulfur gases were nearly 10-fold lower. |
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