JamesFortinFallEtAl2007

Référence

James, P.M.A., Fortin, M.-J., Fall, A., Kneeshaw, D.D., Messier, C. (2007) The effects of spatial legacies following shifting management practices and fire on boreal forest age structure. Ecosystems, 10(8):1261-1277. (Scopus )

Résumé

Forest age structure and its spatial arrangement are important elements of sustainable forestry because of their effects on biodiversity and timber availability. Forest management objectives that include specific forest age structure may not be easily attained due to constraints imposed by the legacies of historical management and natural disturbance. We used a spatially explicit stochastic model to explore the synergetic effects of forest management and fire on boreal forest age structure. Specifically, we examined (1) the duration of spatial legacies of different management practices in the boreal forest, (2) how multiple shifts in management practices affect legacy duration and the spatial trajectories of forest age structure, and (3) how fire influences legacy duration and pattern development in combination with harvesting. Results based on 30 replicates of 500 years for each scenario indicate that (1) spatial legacies persist over 200 years and the rate at which legacies are overcome depends on whether new management targets are in synchrony with existing spatial pattern; (2) age specific goals were met faster after multiple management shifts due to the similar spatial scale of the preceding management types; (3) because large fires can erase the spatial pattern created by smaller disturbances, scenarios with fire had shorter lags than scenarios without fire. These results suggest that forest management goals can be accelerated by applying management at a similar spatial scale as existing spatial patterns. Also, management planning should include careful consideration of historical management as well as current and likely future disturbances. © 2007 Springer Science+Business Media, LLC.

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@ARTICLE { JamesFortinFallEtAl2007,
    AUTHOR = { James, P.M.A. and Fortin, M.-J. and Fall, A. and Kneeshaw, D.D. and Messier, C. },
    TITLE = { The effects of spatial legacies following shifting management practices and fire on boreal forest age structure },
    JOURNAL = { Ecosystems },
    YEAR = { 2007 },
    VOLUME = { 10 },
    PAGES = { 1261-1277 },
    NUMBER = { 8 },
    ABSTRACT = { Forest age structure and its spatial arrangement are important elements of sustainable forestry because of their effects on biodiversity and timber availability. Forest management objectives that include specific forest age structure may not be easily attained due to constraints imposed by the legacies of historical management and natural disturbance. We used a spatially explicit stochastic model to explore the synergetic effects of forest management and fire on boreal forest age structure. Specifically, we examined (1) the duration of spatial legacies of different management practices in the boreal forest, (2) how multiple shifts in management practices affect legacy duration and the spatial trajectories of forest age structure, and (3) how fire influences legacy duration and pattern development in combination with harvesting. Results based on 30 replicates of 500 years for each scenario indicate that (1) spatial legacies persist over 200 years and the rate at which legacies are overcome depends on whether new management targets are in synchrony with existing spatial pattern; (2) age specific goals were met faster after multiple management shifts due to the similar spatial scale of the preceding management types; (3) because large fires can erase the spatial pattern created by smaller disturbances, scenarios with fire had shorter lags than scenarios without fire. These results suggest that forest management goals can be accelerated by applying management at a similar spatial scale as existing spatial patterns. Also, management planning should include careful consideration of historical management as well as current and likely future disturbances. © 2007 Springer Science+Business Media, LLC. },
    COMMENT = { Cited By (since 1996): 10 Export Date: 15 May 2012 Source: Scopus CODEN: ECOSF doi: 10.1007/s10021-007-9095-y },
    ISSN = { 14329840 (ISSN) },
    KEYWORDS = { Forest age structure, Forest disturbance, Forest management, Landscape legacies, Landscape pattern metrics, Ordination, Simulation modeling, Stochastic spatially explicit model, age structure, biodiversity, boreal forest, disturbance, forest fire, forest management, harvesting, numerical model, ordination, stochasticity, sustainable forestry },
    OWNER = { Luc },
    TIMESTAMP = { 2012.05.15 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-37749054317&partnerID=40&md5=8417256220d84359311804fc35e45558 },
}

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