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Publication Type J
Authors Rhew, RC; Whelan, ME; Min, DH
Author Full Name Rhew, R. C.; Whelan, M. E.; Min, D. -H.
Title Large methyl halide emissions from south Texas salt marshes
Source BIOGEOSCIENCES
Language English
Document Type Article
Keywords Plus CHLORIDE TRANSFERASE; BROMIDE; PLANTS; IDENTIFICATION; HALOMETHANES; VEGETATION; FLUXES
Abstract Coastal salt marshes are natural sources of methyl chloride (CH3Cl) and methyl bromide (CH3Br) to the atmosphere, but measured emission rates vary widely by geography. Here we report large methyl halide fluxes from subtropical salt marshes of south Texas. Sites with the halophytic plant, Batis maritima, emitted methyl halides at rates that are orders of magnitude greater than sites containing other vascular plants or macroalgae. B. maritima emissions were generally highest at midday; however, diurnal variability was more pronounced for CH3Br than CH3Cl, and surprisingly high nighttime CH3Cl fluxes were observed in July. Seasonal and intra-site variability were large, even taking into account biomass differences. Overall, these subtropical salt marsh sites show much higher emission rates than temperate salt marshes at similar times of the year, supporting the contention that low-latitude salt marshes are significant sources of CH3Cl and CH3Br.
Author Address [Rhew, R. C.; Whelan, M. E.] Univ Calif Berkeley, Dept Geog, Berkeley, CA 94720 USA; [Min, D. -H.] Univ Texas Austin, Inst Marine Sci, Port Aransas, TX 78373 USA
Reprint Address Rhew, RC (reprint author), Univ Calif Berkeley, Dept Geog, Berkeley, CA 94720 USA.
E-mail Address rrhew@berkeley.edu
ResearcherID Number Rhew, Robert/M-8110-2016
ORCID Number Rhew, Robert/0000-0001-6358-2050
Funding Agency and Grant Number UCB, UT Austin; Schweppe Endowment at UTMSI
Funding Text The authors thank F. Ernst, K. Dunton, I.-N. Kim and T. W. Kim (UTMSI) and Y.-T. Chen (UCB) for field support; S. Manley (CSU-LB) for data comparisons; the Bass Company and A. Nunez (Texas General Land Office) for field site access and coordination. Research was supported by UCB, UT Austin, and the Schweppe Endowment at UTMSI. This is the University of Texas Marine Science Institute Contribution No. 1681.
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Cited Reference Count 27
Times Cited 3
Total Times Cited Count (WoS, BCI, and CSCD) 4
Publisher COPERNICUS GESELLSCHAFT MBH
Publisher City GOTTINGEN
Publisher Address BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
ISSN 1726-4170
29-Character Source Abbreviation BIOGEOSCIENCES
ISO Source Abbreviation Biogeosciences
Year Published 2014
Volume 11
Issue 22
Beginning Page 6427
Ending Page 6434
Digital Object Identifier (DOI) 10.5194/bg-11-6427-2014
Page Count 8
Web of Science Category Ecology; Geosciences, Multidisciplinary
Subject Category Environmental Sciences & Ecology; Geology
Document Delivery Number AW6CJ
Unique Article Identifier WOS:000346356800019
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