DrobyshevBergeronGirardinEtAl2017

Référence

Drobyshev, I., Bergeron, Y., Girardin, M.P., Gauthier, S., Ols, C. and Ojal, J. (2017) Strong Gradients in Forest Sensitivity to Climate Change Revealed by Dynamics of Forest Fire Cycles in the Post Little Ice Age Era. Journal of Geophysical Research: Biogeosciences, 122(10):2605-2616. (Scopus )

Résumé

The length of the fire cycle is a critical factor affecting the vegetation cover in boreal and temperate regions. However, its responses to climate change remain poorly understood. We reanalyzed data from earlier studies of forest age structures at the landscape level, in order to map the evolution of regional fire cycles across Eastern North American boreal and temperate forests, following the termination of the Little Ice Age (LIA). We demonstrated a well-defined spatial pattern of post-LIA changes in the length of fire cycles toward lower fire activity during the 1800s and 1900s. The western section of Eastern North America (west of 77°W) experienced a decline in fire activity as early as the first half of the 1800s. By contrast, the eastern section showed these declines as late as the early 1900s. During a regionally fire-prone period of the 1910s–1920s, forests in the western section of Eastern boreal North America burned more than forests in the eastern section. The climate appeared to dominate over vegetation composition and human impacts in shaping the geographical pattern of the post-LIA change in fire activity. Changes in the atmospheric circulation patterns following the termination of the LIA, specifically changes in Arctic Oscillation and the strengthening of the Continental Polar Trough, were likely drivers of the regional fire dynamics. ©2017. American Geophysical Union. All Rights Reserved.

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@ARTICLE { DrobyshevBergeronGirardinEtAl2017,
    AUTHOR = { Drobyshev, I. and Bergeron, Y. and Girardin, M.P. and Gauthier, S. and Ols, C. and Ojal, J. },
    TITLE = { Strong Gradients in Forest Sensitivity to Climate Change Revealed by Dynamics of Forest Fire Cycles in the Post Little Ice Age Era },
    JOURNAL = { Journal of Geophysical Research: Biogeosciences },
    YEAR = { 2017 },
    VOLUME = { 122 },
    NUMBER = { 10 },
    PAGES = { 2605-2616 },
    NOTE = { cited By 0 },
    ABSTRACT = { The length of the fire cycle is a critical factor affecting the vegetation cover in boreal and temperate regions. However, its responses to climate change remain poorly understood. We reanalyzed data from earlier studies of forest age structures at the landscape level, in order to map the evolution of regional fire cycles across Eastern North American boreal and temperate forests, following the termination of the Little Ice Age (LIA). We demonstrated a well-defined spatial pattern of post-LIA changes in the length of fire cycles toward lower fire activity during the 1800s and 1900s. The western section of Eastern North America (west of 77°W) experienced a decline in fire activity as early as the first half of the 1800s. By contrast, the eastern section showed these declines as late as the early 1900s. During a regionally fire-prone period of the 1910s–1920s, forests in the western section of Eastern boreal North America burned more than forests in the eastern section. The climate appeared to dominate over vegetation composition and human impacts in shaping the geographical pattern of the post-LIA change in fire activity. Changes in the atmospheric circulation patterns following the termination of the LIA, specifically changes in Arctic Oscillation and the strengthening of the Continental Polar Trough, were likely drivers of the regional fire dynamics. ©2017. American Geophysical Union. All Rights Reserved. },
    AFFILIATION = { Institut de recherche sur les forêts, Chaire industrielle CRSNG-UQAT-UQAM en aménagement forestier durable, Université du Québec en Abitibi-Témiscamingue, Rouyn-Noranda, QC, Canada; Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences, Alnarp, Sweden; Laurentian Forestry Centre, Natural Resources Canada, Canadian Forest ServiceQC, Canada; Institut National de l'Information Géographique et Forestière, Laboratoire d'Inventaire Forestier, Nancy, France; KEMRI-Wellcome Trust research programme, Kilifi, Kenya },
    AUTHOR_KEYWORDS = { boreal biome; climate forcing; dendrochronology; forest fires; forest resilience; natural disturbances },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1002/2017JG003826 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85031764674&doi=10.1002%2f2017JG003826&partnerID=40&md5=2809f5fad9ca499d6d277ce00dd643b7 },
}

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