ChenWuWangEtAl2011

Référence

Chen, H., Wu, N., Wang, Y., Gao, Y. and Peng, C. (2011) Methane fluxes from alpine wetlands of zoige plateau in relation to water regime and vegetation under two scales. Water, Air, and Soil Pollution, 217(1-4):173-183. (Scopus )

Résumé

Methane fluxes in alpine ecosystems remain insufficiently studied, especially in terms of the magnitude, temporal, and spatial patterns. To quantify the mean methane emission of alpine ecosystems, methane fluxes were measured among six ecosystems and microsites within each ecosystem at Zoige National Wetland Reserve. The average methane emission from Zoige Plateau was 2.25 mg CH4 m-2∈h-1, which fell into the range of methane emission rate reported by a number of studies in other alpine wetlands. Prevailing ecosystem types had important impacts on the methane flux on the landscape scale. In the wet ecosystems, the microsites had different methane emissions resulting from the differences in the depth of water table and associated vegetation characteristics. The identification of the microsites based on their vegetation characteristics thus allows upscaling of methane emissions in these ecosystems. However, in the dry ecosystems showing even methane uptake, the spatial variation in the methane fluxes was low and the vegetation has a poor predicative value for the methane fluxes. There, the soil porosity linked to the gas diffusion rate in soil would be the key factor explaining methane fluxes. © 2010 Springer Science+Business Media B.V.

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@ARTICLE { ChenWuWangEtAl2011,
    AUTHOR = { Chen, H. and Wu, N. and Wang, Y. and Gao, Y. and Peng, C. },
    TITLE = { Methane fluxes from alpine wetlands of zoige plateau in relation to water regime and vegetation under two scales },
    JOURNAL = { Water, Air, and Soil Pollution },
    YEAR = { 2011 },
    VOLUME = { 217 },
    PAGES = { 173-183 },
    NUMBER = { 1-4 },
    ABSTRACT = { Methane fluxes in alpine ecosystems remain insufficiently studied, especially in terms of the magnitude, temporal, and spatial patterns. To quantify the mean methane emission of alpine ecosystems, methane fluxes were measured among six ecosystems and microsites within each ecosystem at Zoige National Wetland Reserve. The average methane emission from Zoige Plateau was 2.25 mg CH4 m-2∈h-1, which fell into the range of methane emission rate reported by a number of studies in other alpine wetlands. Prevailing ecosystem types had important impacts on the methane flux on the landscape scale. In the wet ecosystems, the microsites had different methane emissions resulting from the differences in the depth of water table and associated vegetation characteristics. The identification of the microsites based on their vegetation characteristics thus allows upscaling of methane emissions in these ecosystems. However, in the dry ecosystems showing even methane uptake, the spatial variation in the methane fluxes was low and the vegetation has a poor predicative value for the methane fluxes. There, the soil porosity linked to the gas diffusion rate in soil would be the key factor explaining methane fluxes. © 2010 Springer Science+Business Media B.V. },
    COMMENT = { Export Date: 14 May 2012 Source: Scopus CODEN: WAPLA doi: 10.1007/s11270-010-0577-8 },
    ISSN = { 00496979 (ISSN) },
    KEYWORDS = { Alpine wetland, GHG fluxes, Landscape pattern, Standing water depth, Zoige Plateau, Alpine wetland, GHG fluxes, Landscape pattern, Standing water depth, Zoige Plateau, Aquifers, Diffusion, Methane, Vegetation, Wetlands, Ecosystems, methane, alpine environment, hydrological regime, methane, plateau, soil water, spatial variation, vegetation, water depth, water table, wetland, alpine ecosystem, article, China, ecosystem, gas diffusion, soil, soil porosity, vegetation, water table, wetland, China, Qinghai-Xizang Plateau, Zoige Plateau },
    OWNER = { Luc },
    TIMESTAMP = { 2012.05.14 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-79955053636&partnerID=40&md5=797640bd54a064dc840ebc37372ad91a },
}

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