Premium
Methyl halide emissions from greenhouse‐grown mangroves
Author(s) -
Manley Steven L.,
Wang NunYii,
Walser Maggie L.,
Cicerone Ralph J.
Publication year - 2007
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2006gl027777
Subject(s) - mangrove , rhizophora mangle , halide , avicennia , salinity , environmental science , greenhouse gas , rhizophora , environmental chemistry , atmospheric sciences , chemistry , ecology , physics , biology , inorganic chemistry
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 CH 3 Cl, 10 and 1.6 for CH 3 Br, and 26 and 11 for CH 3 I, for A. germinans and R. mangle , respectively. From these preliminary determinations, only CH 3 I emissions emerge as being of possible global atmospheric significance. This study emphasizes the need for field studies of methyl halide emissions from mangrove forests.