GirardinBergeronTardifEtAl2006

Référence

Girardin, M.P., Bergeron, Y., Tardif, J.C., Gauthier, S., Flannigan, M.D., Mudelsee, M. (2006) A 229-year dendroclimatic-inferred record of forest fire activityfor the Boreal Shield of Canada. International Journal of Wildland Fire, 15(3):375-388.

Résumé

Six independent tree-ring reconstructions of summer drought were calibratedagainst instrumental fire data to develop a 229-year dendroclimatic-inferredrecord of fire activity (annual area burned and fire occurrence)on the Boreal Shield, Canada. As a means of validating the statisticalreconstructions of the fire activity, a comparison was made witha stand age distribution derived from a regional time-since-last-firemap for an area located at the transition between the mixedwoodand coniferous boreal forests of south-western Quebec. Calibrationstatistics indicated that 31% of the area burned variance and 45%of the fire occurrence variance could be accounted for by the sixdrought reconstructions. The verification statistics indicated atendency for the statistical reconstructions of the fire activityto reproduce with confidence both high and relatively low frequencyvariations in fire. Episodes of succeeding years with importantfire activity were estimated for 1789?1796, 1820?1823, 1837?1841,1862?1866, 1906?1912, 1919?1922, 1933?1938, and 1974?1977. Alsoestimated were periods of reduced forest fire activity, particularlyin the occurrence rate of extreme fire years, from c. 1850 to 1900and again during the second half of the 20th century. Correlationanalysis between the statistical reconstruction of the area burnedand the stand age distribution suggested that both proxies sharedsimilar information on the fire activity. Correlation maps, however,indicated that variability in the statistical reconstructions wasnot necessarily representative of fire activity in all regions ofthe Boreal Shield. © IAWF 2006.

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@ARTICLE { GirardinBergeronTardifEtAl2006,
    AUTHOR = { Girardin, M.P. and Bergeron, Y. and Tardif, J.C. and Gauthier, S.and Flannigan, M.D. and Mudelsee, M. },
    TITLE = { A 229-year dendroclimatic-inferred record of forest fire activityfor the Boreal Shield of Canada },
    JOURNAL = { International Journal of Wildland Fire },
    YEAR = { 2006 },
    VOLUME = { 15 },
    PAGES = { 375-388 },
    NUMBER = { 3 },
    ABSTRACT = { Six independent tree-ring reconstructions of summer drought were calibratedagainst instrumental fire data to develop a 229-year dendroclimatic-inferredrecord of fire activity (annual area burned and fire occurrence)on the Boreal Shield, Canada. As a means of validating the statisticalreconstructions of the fire activity, a comparison was made witha stand age distribution derived from a regional time-since-last-firemap for an area located at the transition between the mixedwoodand coniferous boreal forests of south-western Quebec. Calibrationstatistics indicated that 31% of the area burned variance and 45%of the fire occurrence variance could be accounted for by the sixdrought reconstructions. The verification statistics indicated atendency for the statistical reconstructions of the fire activityto reproduce with confidence both high and relatively low frequencyvariations in fire. Episodes of succeeding years with importantfire activity were estimated for 1789?1796, 1820?1823, 1837?1841,1862?1866, 1906?1912, 1919?1922, 1933?1938, and 1974?1977. Alsoestimated were periods of reduced forest fire activity, particularlyin the occurrence rate of extreme fire years, from c. 1850 to 1900and again during the second half of the 20th century. Correlationanalysis between the statistical reconstruction of the area burnedand the stand age distribution suggested that both proxies sharedsimilar information on the fire activity. Correlation maps, however,indicated that variability in the statistical reconstructions wasnot necessarily representative of fire activity in all regions ofthe Boreal Shield. © IAWF 2006. },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.04 },
}

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