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Title: Automated closed-chamber measurements of methane fluxes from intact leaves and trunk of Japanese cypress
Authors: Takahashi, Kenshi  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-5905-2708 (unconfirmed)
Kosugi, Yoshiko  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-0256-8404 (unconfirmed)
Kanazawa, Akito
Sakabe, Ayaka  kyouindb  KAKEN_id
Author's alias: 高橋, けんし
Keywords: Methane
Plant emission
Aerobic conditions
Laser-based technique
Chamber method
Issue Date: May-2012
Publisher: Elsevier Ltd.
Journal title: Atmospheric Environment
Volume: 51
Start page: 329
End page: 332
Abstract: Continuous in situ measurements of methane (CH4) fluxes from intact leaves and trunk of Japanese cypress (Chamaecyparis obtusa Sieb. et Zucc) were conducted in a temperate forest from August 2009 to August 2010. An automated closed-chamber system, which was used to evaluate CO2 exchange between the atmosphere and forest ecosystems, was coupled to a laser-based instrument to monitor CH4 concentrations. Temporal changes in CH4 concentrations from the foliage and trunk were measured at one-second intervals during chamber closure to determine CH4 fluxes between the leaf and trunk surfaces and the atmosphere. While recent studies have suggested that some plants emit CH4 under aerobic conditions, emission or uptake of CH4 in detectable amounts with our experimental system, by intact leaves or the trunk of C. obtusa, was not significantly observed throughout the measurement period.
Rights: © 2012 Elsevier Ltd.
This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
URI: http://hdl.handle.net/2433/154924
DOI(Published Version): 10.1016/j.atmosenv.2012.01.033
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