SchneiderBerningerUngEtAl2008

Référence

Schneider, R., Berninger, F., Ung, C.H., Bernier, P.Y., Swift, D.E. and Zhang, S.Y. (2008) Calibrating jack pine allometric relationships with simultaneous regressions. Canadian Journal of Forest Research, 38(10):2566-2578. (URL )

Résumé

Allometric equations for estimating foliage biomass, sapwood area, and branch basal area from tree diameters and crown lengths for jack pine (Pinus banksiana Lamb.) in eastern Canada were calibrated using mixed models. A first model is presented that relates branch foliage biomass to branch diameter and relative position within the crown. These results show that a branch's foliage biomass is inversely proportional to its depth within the crown. At the tree level, foliage biomass was found to be proportional to crown length and to vary with stem age and slenderness. Pipe model parameters (sapwood area and branch basal area to foliage biomass) were also calculated. The sapwood area to foliage biomass parameter is proportional to stand density, whereas branch basal area to foliage biomass is constant. The tree-level allometeric models were calibrated using a mixed-effects seemingly unrelated regression to account for between-model correlations.

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@ARTICLE { SchneiderBerningerUngEtAl2008,
    AUTHOR = { Schneider, R. and Berninger, F. and Ung, C.H. and Bernier, P.Y. and Swift, D.E. and Zhang, S.Y. },
    TITLE = { Calibrating jack pine allometric relationships with simultaneous regressions },
    JOURNAL = { Canadian Journal of Forest Research },
    YEAR = { 2008 },
    VOLUME = { 38 },
    PAGES = { 2566-2578 },
    NUMBER = { 10 },
    NOTE = { Schneider, Robert Berninger, Frank Ung, Chhun-Huor Bernier, Pierre Y. Swift, D. Edwin Zhang, S. Y. },
    ABSTRACT = { Allometric equations for estimating foliage biomass, sapwood area, and branch basal area from tree diameters and crown lengths for jack pine (Pinus banksiana Lamb.) in eastern Canada were calibrated using mixed models. A first model is presented that relates branch foliage biomass to branch diameter and relative position within the crown. These results show that a branch's foliage biomass is inversely proportional to its depth within the crown. At the tree level, foliage biomass was found to be proportional to crown length and to vary with stem age and slenderness. Pipe model parameters (sapwood area and branch basal area to foliage biomass) were also calculated. The sapwood area to foliage biomass parameter is proportional to stand density, whereas branch basal area to foliage biomass is constant. The tree-level allometeric models were calibrated using a mixed-effects seemingly unrelated regression to account for between-model correlations. },
    KEYWORDS = { SCOTS PINE; LOBLOLLY-PINE; SAPWOOD AREA; TREE GROWTH; THINNING INTENSITY; CARBON BALANCE; SYLVESTRIS L; LEAF-AREA; BIOMASS; AGE },
    OWNER = { amriv2 },
    TIMESTAMP = { 2012.05.16 },
    URL = { http://www.nrcresearchpress.com/doi/abs/10.1139/X08-090 },
}

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