Show simple item record

dc.contributor.author
Winton, R.S.
dc.contributor.author
Flanagan, Neal
dc.date.accessioned
2017-11-29T14:47:25Z
dc.date.available
2017-10-30T03:33:13Z
dc.date.available
2017-11-29T14:47:25Z
dc.date.issued
2017
dc.identifier.issn
1932-6203
dc.identifier.other
10.1371/journal.pone.0187019
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/202060
dc.identifier.doi
10.3929/ethz-b-000202060
dc.description.abstract
Tropical wetlands are thought to be the most important source of interannual variability in atmospheric methane (CH4) concentrations, yet sparse data prevents them from being incorporated into Earth system models. This problem is particularly pronounced in the neotropics where bottom-up models based on water table depth are incongruent with top-down inversion models suggesting unaccounted sinks or sources of CH4. The newly documented vast areas of peatlands in the Amazon basin may account for an important unrecognized CH4 source, but the hydrologic and biogeochemical controls of CH4 dynamics from these systems remain poorly understood. We studied three zones of a peatland in Madre de Dios, Peru, to test whether CH4 emissions and pore water concentrations varied with vegetation community, soil chemistry and proximity to groundwater sources. We found that the open-canopy herbaceous zone emitted roughly one-third as much CH4 as the Mauritia flexuosa palm-dominated areas (4.7 ± 0.9 and 14.0 ± 2.4 mg CH4 m-2 h-1, respectively). Emissions decreased with distance from groundwater discharge across the three sampling sites, and tracked changes in soil carbon chemistry, especially increased soil phenolics. Based on all available data, we calculate that neotropical peatlands contribute emissions of 43 ± 11.9 Tg CH4 y-1, however this estimate is subject to geographic bias and will need revision once additional studies are published.
en_US
dc.language.iso
en
en_US
dc.publisher
Public Library of Science
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.title
Neotropical peatland methane emissions along a vegetation and biogeochemical gradient
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2017-10-20
ethz.journal.title
PLoS ONE
ethz.journal.volume
12
en_US
ethz.journal.issue
10
en_US
ethz.journal.abbreviated
PLoS ONE
ethz.pages.start
e0187019
en_US
ethz.size
12 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
San Francisco, CA
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science
ethz.date.deposited
2017-10-30T03:33:15Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-11-29T14:47:36Z
ethz.rosetta.lastUpdated
2018-11-06T04:30:03Z
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.atitle=Neotropical%20peatland%20methane%20emissions%20along%20a%20vegetation%20and%20biogeochemical%20gradient&rft.jtitle=PLoS%20ONE&rft.date=2017&rft.volume=12&rft.issue=10&rft.spage=e0187019&rft.issn=1932-6203&rft.au=Winton,%20R.S.&Flanagan,%20Neal&rft.genre=article&
 Search via SFX

Files in this item

Thumbnail

Publication type

Show simple item record