SulmanDesaiSaliendraEtAl2010

Référence

Sulman, B.N., Desai, A.R., Saliendra, N.Z., Lafleur, P.M., Flanagan, L.B., Sonnentag, O., MacKay, D.S., Barr, A.G. and Van Der Kamp, G. (2010) CO<inf>2</inf> fluxes at northern fens and bogs have opposite responses to inter-annual fluctuations in water table. Geophysical Research Letters, 37(19). (Scopus )

Résumé

This study compares eddy-covariance measurements of carbon dioxide fluxes at six northern temperate and boreal peatland sites in Canada and the northern United States of America, representing both bogs and fens. The two peatland types had opposite responses of gross ecosystem photosynthesis (GEP) and ecosystem respiration (ER) to inter-annual fluctuations in water table level. At fens, wetter conditions were correlated with lower GEP and ER, while at bogs wetter conditions were correlated with higher GEP and ER. We hypothesize that these contrasting responses are due to differences in the relative contributions of vascular plants and mosses. The coherence of our results between sites representing a range of average environmental conditions indicates ecosystem-scale differences in resilience to hydrological changes that should be taken into account when considering the future of peatland ecosystem services such as carbon sequestration under changing environmental conditions. © 2010 by the American Geophysical Union.

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@ARTICLE { SulmanDesaiSaliendraEtAl2010,
    AUTHOR = { Sulman, B.N. and Desai, A.R. and Saliendra, N.Z. and Lafleur, P.M. and Flanagan, L.B. and Sonnentag, O. and MacKay, D.S. and Barr, A.G. and Van Der Kamp, G. },
    TITLE = { CO<inf>2</inf> fluxes at northern fens and bogs have opposite responses to inter-annual fluctuations in water table },
    JOURNAL = { Geophysical Research Letters },
    YEAR = { 2010 },
    VOLUME = { 37 },
    NUMBER = { 19 },
    NOTE = { cited By 38 },
    ABSTRACT = { This study compares eddy-covariance measurements of carbon dioxide fluxes at six northern temperate and boreal peatland sites in Canada and the northern United States of America, representing both bogs and fens. The two peatland types had opposite responses of gross ecosystem photosynthesis (GEP) and ecosystem respiration (ER) to inter-annual fluctuations in water table level. At fens, wetter conditions were correlated with lower GEP and ER, while at bogs wetter conditions were correlated with higher GEP and ER. We hypothesize that these contrasting responses are due to differences in the relative contributions of vascular plants and mosses. The coherence of our results between sites representing a range of average environmental conditions indicates ecosystem-scale differences in resilience to hydrological changes that should be taken into account when considering the future of peatland ecosystem services such as carbon sequestration under changing environmental conditions. © 2010 by the American Geophysical Union. },
    AFFILIATION = { Department of Atmospheric and Oceanic Sciences, University of Wisconsin-Madison, 1225 W. Dayton St., Madison, WI 53706, United States; Center for Urban Environmental Research and Education, University of Maryland at Baltimore County, 1000 Hilltop Cir., Baltimore, MD 21250, United States; Department of Geography, Trent University, PO Box 4800, Peterborough, ON K9J 7B8, Canada; Department of Biological Sciences, University of Lethbridge, 4401 University Dr., Lethbridge, AB T1K 3M4, Canada; Department of Environmental Sciences, Policy, and Management, University of California, 137 Mulford Hall 3114, Berkeley, CA 94720, United States; Department of Geography, State University of New York at Buffalo, North Campus, Buffalo, NY 14261, United States; Climate Research Division, Environment Canada, 11 Innovation Blvd., Saskatoon, SK S7N 3H5, Canada; National Water Research Institute, Environment Canada, 11 Innovation Blvd., Saskatoon, SK S7N 3H5, Canada },
    ART_NUMBER = { L19702 },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1029/2010GL044018 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-77957696041&doi=10.1029%2f2010GL044018&partnerID=40&md5=3f6edc9e1863f9c16b7b0db082365c02 },
}

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