DeMorissetteGauthier2000

Référence

De Grandpre, L., Morissette, J. and Gauthier, S. (2000) Long-term post-fire changes in the northeastern boreal forest of Quebec. Journal of Vegetation Science, 11(6):791-800. (Scopus )

Résumé

Natural dynamics in the boreal forest is influenced by disturbances. Fire recurrence affects community development and landscape diversity. Forest development was studied in the northeastern boreal forest of Quebec. The objective was to describe succession following fire and to assess the factors related to the changes in forest composition and structure. The study area is located in northeastern Quebec, 50 km north of Baie-Comeau. We used the forest inventory data gathered by the Ministe?re des Ressources naturelles du Que?bec (MRNQ). In circular plots of 400 m2 the diameter at breast height (DBH) of all stems of tree species greater than 10 cm was recorded and in 40 m2 subplots, stems smaller than 10 cm were measured. A total of 380 plots were sampled in an area of 6000 km2. The fire history reconstruction was done based on historical maps, old aerial photographs and field sampling. A time-since-fire class, a deposit type, slope, slope aspect and altitude were attributed to each plot. Each plot was also described according to species richness and size structure characteristics. Traces of recent disturbance were also recorded in each plot. Changes in forest composition were described using ordination analyses (NMDS and CCA) and correlated with the explanatory variables. Two successional pathways were observed in the area and characterized by the early dominance of intolerant hardwood species or Picea mariana. With time elapsed since the last fire, composition converged towards either Picea mariana, Abies balsamea or a mixture of both species and the size structure of the coniferous dominated stands got more irregular. The environmental conditions varied between stands and explained part of the variability in composition. Their effect tended to decrease with increasing time elapsed since fire, as canopy composition was getting more similar. Gaps may be important to control forest dynamics in old successional communities.

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@ARTICLE { DeMorissetteGauthier2000,
    AUTHOR = { De Grandpre, L. and Morissette, J. and Gauthier, S. },
    TITLE = { Long-term post-fire changes in the northeastern boreal forest of Quebec },
    JOURNAL = { Journal of Vegetation Science },
    YEAR = { 2000 },
    VOLUME = { 11 },
    PAGES = { 791-800 },
    NUMBER = { 6 },
    ABSTRACT = { Natural dynamics in the boreal forest is influenced by disturbances. Fire recurrence affects community development and landscape diversity. Forest development was studied in the northeastern boreal forest of Quebec. The objective was to describe succession following fire and to assess the factors related to the changes in forest composition and structure. The study area is located in northeastern Quebec, 50 km north of Baie-Comeau. We used the forest inventory data gathered by the Ministe?re des Ressources naturelles du Que?bec (MRNQ). In circular plots of 400 m2 the diameter at breast height (DBH) of all stems of tree species greater than 10 cm was recorded and in 40 m2 subplots, stems smaller than 10 cm were measured. A total of 380 plots were sampled in an area of 6000 km2. The fire history reconstruction was done based on historical maps, old aerial photographs and field sampling. A time-since-fire class, a deposit type, slope, slope aspect and altitude were attributed to each plot. Each plot was also described according to species richness and size structure characteristics. Traces of recent disturbance were also recorded in each plot. Changes in forest composition were described using ordination analyses (NMDS and CCA) and correlated with the explanatory variables. Two successional pathways were observed in the area and characterized by the early dominance of intolerant hardwood species or Picea mariana. With time elapsed since the last fire, composition converged towards either Picea mariana, Abies balsamea or a mixture of both species and the size structure of the coniferous dominated stands got more irregular. The environmental conditions varied between stands and explained part of the variability in composition. Their effect tended to decrease with increasing time elapsed since fire, as canopy composition was getting more similar. Gaps may be important to control forest dynamics in old successional communities. },
    ADDRESS = { Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, 1055 du P.E.P.S., Sainte-Foy, Que. G1V 4C7, Canada },
    COMMENT = { Cited By (since 1996): 22 Export Date: 26 September 2007 Source: Scopus CODEN: JVESE Language of Original Document: English Correspondence Address: De Grandpre?, L.; Natural Resources Canada; Canadian Forest Service; Laurentian Forestry Centre; 1055 du P.E.P.S. Sainte-Foy, Que. G1V 4C7, Canada; email: ldegrandpre@cfl.forestry.ca },
    ISSN = { 11009233 (ISSN) },
    KEYWORDS = { Abies balsamea, Disturbance, Picea mariana, Species replacement, Succession, Windthrow, boreal forest, community composition, community structure, fire, succession, Canada, Abies balsamea, Picea mariana },
    OWNER = { Luc },
    TIMESTAMP = { 2007.09.26 },
    URL = { http://www.scopus.com/scopus/inward/record.url?eid=2-s2.0-0034484650&partnerID=40&rel=R6.5.0 },
}

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