RemyHelyBlarquezEtAl2017

Référence

Remy, C.C., Hely, C., Blarquez, O., Magnan, G., Bergeron, Y., Lavoie, M. and Ali, A.A. (2017) Different regional climatic drivers of Holocene large wildfires in boreal forests of northeastern America. Environmental Research Letters, 12(3). (Scopus )

Résumé

Global warming could increase climatic instability and large wildfire activity in circumboreal regions, potentially impairing both ecosystem functioning and human health. However, links between large wildfire events and climatic and/or meteorological conditions are still poorly understood, partly because few studies have covered a wide range of past climate-fire interactions. We compared palaeofire and simulated climatic data over the last 7000 years to assess causes of large wildfire events in three coniferous boreal forest regions in north-eastern Canada. These regions span an east-west cline, from a hilly region influenced by the Atlantic Ocean currently dominated by Picea mariana and Abies balsamea to a flatter continental region dominated by Picea mariana and Pinus banksiana. The largest wildfires occurred across the entire study zone between 3000 and 1000 cal. BP. In western and central continental regions these events were triggered by increases in both the fire-season length and summer/spring temperatures, while in the eastern region close to the ocean they were likely responses to hydrological (precipitation/evapotranspiration) variability. The impact of climatic drivers on fire size varied spatially across the study zone, confirming that regional climate dynamics could modulate effects of global climate change on wildfire regimes. © 2017 IOP Publishing Ltd.

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@ARTICLE { RemyHelyBlarquezEtAl2017,
    AUTHOR = { Remy, C.C. and Hely, C. and Blarquez, O. and Magnan, G. and Bergeron, Y. and Lavoie, M. and Ali, A.A. },
    TITLE = { Different regional climatic drivers of Holocene large wildfires in boreal forests of northeastern America },
    JOURNAL = { Environmental Research Letters },
    YEAR = { 2017 },
    VOLUME = { 12 },
    NUMBER = { 3 },
    NOTE = { cited By 0 },
    ABSTRACT = { Global warming could increase climatic instability and large wildfire activity in circumboreal regions, potentially impairing both ecosystem functioning and human health. However, links between large wildfire events and climatic and/or meteorological conditions are still poorly understood, partly because few studies have covered a wide range of past climate-fire interactions. We compared palaeofire and simulated climatic data over the last 7000 years to assess causes of large wildfire events in three coniferous boreal forest regions in north-eastern Canada. These regions span an east-west cline, from a hilly region influenced by the Atlantic Ocean currently dominated by Picea mariana and Abies balsamea to a flatter continental region dominated by Picea mariana and Pinus banksiana. The largest wildfires occurred across the entire study zone between 3000 and 1000 cal. BP. In western and central continental regions these events were triggered by increases in both the fire-season length and summer/spring temperatures, while in the eastern region close to the ocean they were likely responses to hydrological (precipitation/evapotranspiration) variability. The impact of climatic drivers on fire size varied spatially across the study zone, confirming that regional climate dynamics could modulate effects of global climate change on wildfire regimes. © 2017 IOP Publishing Ltd. },
    ART_NUMBER = { 035005 },
    AUTHOR_KEYWORDS = { boreal forest; charcoal lacustrine deposit; disturbance; drought severity; fire size; global circulation model; paleoclimate },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1088/1748-9326/aa5aff },
    KEYWORDS = { Charcoal; Climate change; Forestry; Global warming, Boreal forests; disturbance; Drought severity; Fire size; Global circulation model; Lacustrine deposits; Paleoclimates, Fires, Abies balsamea; Picea mariana; Pinus banksiana },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85015235807&doi=10.1088%2f1748-9326%2faa5aff&partnerID=40&md5=268cd459779c14d741cc05cf27b4bfb9 },
}

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