Physics
Scientific paper
Jan 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007georl..3401806m&link_type=abstract
Geophysical Research Letters, Volume 34, Issue 1, CiteID L01806
Physics
Atmospheric Composition And Structure: Biosphere/Atmosphere Interactions (0426, 1610), Biogeosciences: Agricultural Systems, Biogeosciences: Trace Gases, Biogeosciences: Wetlands (1890)
Scientific paper
Two mangrove species, Avicennia germinans and Rhizophora mangle, were greenhouse grown for nearly 1.5 years from saplings. A single individual of each species was monitored for the emission of methyl halides from aerial tissue. During the first 240 days, salinity was incrementally increased with the addition of seawater, and was maintained between 18 and 28‰ for the duration of the study. Exponential growth occurred after 180 days. Methyl halide emissions normalized to leaf area were measured throughout the study and varied dramatically. Emission rates normalized to land area (mg m-2 y-1), assuming a LAI = 5, yielded 82 and 29 for CH3Cl, 10 and 1.6 for CH3Br, and 26 and 11 for CH3I, for A. germinans and R. mangle, respectively. From these preliminary determinations, only CH3I emissions emerge as being of possible global atmospheric significance. This study emphasizes the need for field studies of methyl halide emissions from mangrove forests.
Cicerone Ralph J.
Manley Steven L.
Walser Maggie L.
Wang Nun-Yii
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