ChenWuWangEtAl2013

Référence

Chen, H., Wu, N., Wang, Y., Zhu, D., Zhu, Q., Yang, G., Gao, Y., Fang, X., Wang, X. and Peng, C. (2013) Inter-Annual Variations of Methane Emission from an Open Fen on the Qinghai-Tibetan Plateau: A Three-Year Study. PLoS ONE, 8(1):e53878. (Scopus )

Résumé

The study aimed to understand the inter-annual variations of methane (CH4) emissions from an open fen on the Qinghai-Tibetan Plateau (QTP) from 2005 to 2007. The weighted mean CH4 emission rate was 8.37±11.32 mg CH4 m-2h-1 during the summers from 2005 to 2007, falling in the range of CH4 fluxes reported by other studies, with significant inter-annual and spatial variations. The CH4 emissions of the year of 2006 (2.11±3.48 mg CH4 m-2h-1) were 82% lower than the mean value of the years 2005 and 2007 (13.91±17.80 mg CH4 m-2h-1 and 9.44±14.32 mg CH4 m-2h-1, respectively), responding to the inter-annual changes of standing water depths during the growing season of the three years. Significant drawdown of standing water depth is believed to cause such significant reduction in CH4 emissions from wetlands in the year 2006, probably through changing the methanogen composition and decreasing its community size as well as activating methanotrophs to enhance CH4 oxidation. Our results are helpful to understand the inter-annual variations of CH4 emission and provide a more reasonable regional budget of CH4 emission from wetlands on the QTP and even for world-wide natural wetlands under climate change. © 2013 Chen et al.

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@ARTICLE { ChenWuWangEtAl2013,
    AUTHOR = { Chen, H. and Wu, N. and Wang, Y. and Zhu, D. and Zhu, Q. and Yang, G. and Gao, Y. and Fang, X. and Wang, X. and Peng, C. },
    TITLE = { Inter-Annual Variations of Methane Emission from an Open Fen on the Qinghai-Tibetan Plateau: A Three-Year Study },
    JOURNAL = { PLoS ONE },
    YEAR = { 2013 },
    VOLUME = { 8 },
    PAGES = { e53878 },
    NUMBER = { 1 },
    NOTE = { cited By (since 1996)4 },
    ABSTRACT = { The study aimed to understand the inter-annual variations of methane (CH4) emissions from an open fen on the Qinghai-Tibetan Plateau (QTP) from 2005 to 2007. The weighted mean CH4 emission rate was 8.37±11.32 mg CH4 m-2h-1 during the summers from 2005 to 2007, falling in the range of CH4 fluxes reported by other studies, with significant inter-annual and spatial variations. The CH4 emissions of the year of 2006 (2.11±3.48 mg CH4 m-2h-1) were 82% lower than the mean value of the years 2005 and 2007 (13.91±17.80 mg CH4 m-2h-1 and 9.44±14.32 mg CH4 m-2h-1, respectively), responding to the inter-annual changes of standing water depths during the growing season of the three years. Significant drawdown of standing water depth is believed to cause such significant reduction in CH4 emissions from wetlands in the year 2006, probably through changing the methanogen composition and decreasing its community size as well as activating methanotrophs to enhance CH4 oxidation. Our results are helpful to understand the inter-annual variations of CH4 emission and provide a more reasonable regional budget of CH4 emission from wetlands on the QTP and even for world-wide natural wetlands under climate change. © 2013 Chen et al. },
    ART_NUMBER = { e53878 },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1371/journal.pone.0053878 },
    ISSN = { 19326203 },
    KEYWORDS = { methane; water, air pollutant; air temperature; article; atmospheric diffusion; autumn; carbon footprint; Carex muliensis; China; climate change; Cyperaceae; Eleocharis; Eleocharis valleculosa; falling; Kobresia tibetica; methane emission; methanogen; methanotroph; nonhuman; oxidation; peatland; precipitation; seasonal variation; summer, Air; Greenhouse Effect; Methane; Rain; Seasons; Temperature; Tibet; Water; Wetlands },
    SOURCE = { Scopus },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-84872352904&partnerID=40&md5=fce11db22462868ac6c08d7ef1cd1768 },
}

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