LamontagneCarignanDArcyEtAl2000

Référence

Lamontagne, S., Carignan, R., D'Arcy, P., Prairie, Y.T., Pare, D. (2000) Element export in runoff from eastern Canadian Boreal Shield drainage basins following forest harvesting and wildfires. Canadian Journal of Fisheries and Aquatic Sciences, 57(SUPPL. 2):118-128. (Scopus )

Résumé

Element export rates from the drainage area of nine harvested, nine burnt, and 16 reference Boreal Shield lake basins in Haute-Mauricie, Quebec, were estimated for the 3 years following harvesting or fires. Export rates from the drainage area of the basins were evaluated using lake sampling surveys, estimated hydrological budgets, and estimated nutrient retention during lake transit. Increases in K+, total N, and total P export rates were similar between harvested and burnt drainage areas. However, harvested drainage areas exported more dissolved organic C, while burnt drainage areas exported more Mg2+, NO3 -, and SO4 2-. Potassium cumulative losses in runoff during the 3 years of the study were of a similar magnitude as volatilization losses during fires and corresponded to -33% of the losses by biomass removal during harvesting. While the increased export rates for N and P following fires or harvesting represented negligible losses of nutrients for the forest, they were important supplementary inputs to lakes. The differences in element export rates observed between harvested and burnt drainage areas indicate that these disturbances have different impacts on biogeochemical cycles in the Boreal Shield forest.

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@ARTICLE { LamontagneCarignanDArcyEtAl2000,
    AUTHOR = { Lamontagne, S. and Carignan, R. and D'Arcy, P. and Prairie, Y.T. and Pare, D. },
    TITLE = { Element export in runoff from eastern Canadian Boreal Shield drainage basins following forest harvesting and wildfires },
    JOURNAL = { Canadian Journal of Fisheries and Aquatic Sciences },
    YEAR = { 2000 },
    VOLUME = { 57 },
    NUMBER = { SUPPL. 2 },
    PAGES = { 118-128 },
    NOTE = { cited By 88 },
    ABSTRACT = { Element export rates from the drainage area of nine harvested, nine burnt, and 16 reference Boreal Shield lake basins in Haute-Mauricie, Quebec, were estimated for the 3 years following harvesting or fires. Export rates from the drainage area of the basins were evaluated using lake sampling surveys, estimated hydrological budgets, and estimated nutrient retention during lake transit. Increases in K+, total N, and total P export rates were similar between harvested and burnt drainage areas. However, harvested drainage areas exported more dissolved organic C, while burnt drainage areas exported more Mg2+, NO3 -, and SO4 2-. Potassium cumulative losses in runoff during the 3 years of the study were of a similar magnitude as volatilization losses during fires and corresponded to -33% of the losses by biomass removal during harvesting. While the increased export rates for N and P following fires or harvesting represented negligible losses of nutrients for the forest, they were important supplementary inputs to lakes. The differences in element export rates observed between harvested and burnt drainage areas indicate that these disturbances have different impacts on biogeochemical cycles in the Boreal Shield forest. },
    AFFILIATION = { CSIRO Land and Water, Private Mail Bag 2, Glen Osmond, SA 5064, Australia },
    DOCUMENT_TYPE = { Article },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-0033762660&partnerID=40&md5=ab65049fd59c9a46fd119726cae20b63 },
}

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