FylesFylesBeeseEtAl1991

Référence

Fyles, J.W., Fyles, I.H., Beese, W.J. and Feller, M.C. (1991) Forest floor characteristics and soil nitrogen availability on slash- burned sites in coastal British Columbia. Canadian Journal of Forest Research, 21(10):1516-1522.

Résumé

Organic forest floor materials were surveyed on spring and fall slash-burned sites in the Sproat Lake region of Vancouver Island two years after burning. Field mineralization, estimated using mass of each organic matter type in the field and first-order model parameters corrected for local temperature, ranged from 2-6 g N.m-2.yr-1, depending on burn severity, suggesting that slash burning did not reduce N availability below levels required to support early plantation growth, except in situations of severe burns on coarse-textured soils. Differential consumption of forest floor organic matter types increased spatial variability in N mineralization and resulted, at the most severely burned site, in 50% of mineralizable N being derived from materials covering only 5% of the site. Predictions of slash-burn impacts on site fertility may be made from weather conditions prior to and during burning. -from Authors

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@ARTICLE { FylesFylesBeeseEtAl1991,
    AUTHOR = { Fyles, J.W. and Fyles, I.H. and Beese, W.J. and Feller, M.C. },
    TITLE = { Forest floor characteristics and soil nitrogen availability on slash- burned sites in coastal British Columbia },
    JOURNAL = { Canadian Journal of Forest Research },
    YEAR = { 1991 },
    VOLUME = { 21 },
    PAGES = { 1516-1522 },
    NUMBER = { 10 },
    NOTE = { 00455067 (ISSN) Cited By (since 1996): 6 Export Date: 26 April 2007 Source: Scopus Language of Original Document: English },
    ABSTRACT = { Organic forest floor materials were surveyed on spring and fall slash-burned sites in the Sproat Lake region of Vancouver Island two years after burning. Field mineralization, estimated using mass of each organic matter type in the field and first-order model parameters corrected for local temperature, ranged from 2-6 g N.m-2.yr-1, depending on burn severity, suggesting that slash burning did not reduce N availability below levels required to support early plantation growth, except in situations of severe burns on coarse-textured soils. Differential consumption of forest floor organic matter types increased spatial variability in N mineralization and resulted, at the most severely burned site, in 50% of mineralizable N being derived from materials covering only 5% of the site. Predictions of slash-burn impacts on site fertility may be made from weather conditions prior to and during burning. -from Authors },
    KEYWORDS = { fire soil nitrogen Canada, British Columbia, Vancouver Island, Sproat Lake },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.05 },
}

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