TremblayOuimetHouleEtAl2012

Référence

Tremblay, S., Ouimet, R., Houle, D. and Duchesne, L. (2012) Base cation distribution and requirement of three common forest ecosystems in eastern Canada based on site-specific and general allometric equations. Canadian Journal of Forest Research, 42(10):1796-1809. (Scopus )

Résumé

Base cations (Ca, Mg, and K) are essential nutrients for forest growth. Many studies have reported important decreases in the soils of several forests in eastern North America, partly because of atmospheric acid deposition and forest harvesting. To quantify the impacts of these perturbations on forest base cations, accurate estimation of tree biomass and nutrient content is needed. However, most of tree nutrient contents are calculated with general allometric equations, leading to inaccurate estimates. We thus calculated tree biomass and base cation content for three common forest types in eastern Canada using site-specific allometric equations and compared them with those calculated with general allometric equations and nutrient concentrations of tree compartments taken from the literature. General allometric equations resulted in aboveground tree biomass estimates in the same range as ours (±15%), but the use of nutrient concentrations taken from the literature resulted mainly in overestimation of above-ground tree nutrient content (-13% to +81%), leading to inaccurate wood requirement estimates (-63% to +86%). Therefore, the development of site-specific equations to estimate above-ground tree base cation content is recommended.

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@ARTICLE { TremblayOuimetHouleEtAl2012,
    AUTHOR = { Tremblay, S. and Ouimet, R. and Houle, D. and Duchesne, L. },
    TITLE = { Base cation distribution and requirement of three common forest ecosystems in eastern Canada based on site-specific and general allometric equations },
    JOURNAL = { Canadian Journal of Forest Research },
    YEAR = { 2012 },
    VOLUME = { 42 },
    PAGES = { 1796-1809 },
    NUMBER = { 10 },
    NOTE = { cited By 4 },
    ABSTRACT = { Base cations (Ca, Mg, and K) are essential nutrients for forest growth. Many studies have reported important decreases in the soils of several forests in eastern North America, partly because of atmospheric acid deposition and forest harvesting. To quantify the impacts of these perturbations on forest base cations, accurate estimation of tree biomass and nutrient content is needed. However, most of tree nutrient contents are calculated with general allometric equations, leading to inaccurate estimates. We thus calculated tree biomass and base cation content for three common forest types in eastern Canada using site-specific allometric equations and compared them with those calculated with general allometric equations and nutrient concentrations of tree compartments taken from the literature. General allometric equations resulted in aboveground tree biomass estimates in the same range as ours (±15%), but the use of nutrient concentrations taken from the literature resulted mainly in overestimation of above-ground tree nutrient content (-13% to +81%), leading to inaccurate wood requirement estimates (-63% to +86%). Therefore, the development of site-specific equations to estimate above-ground tree base cation content is recommended. },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1139/X2012-125 },
    KEYWORDS = { Aboveground tree biomass; Accurate estimation; Acid deposition; Allometric equations; Base cations; Eastern north america; Essential nutrients; Forest base; Forest ecosystem; Forest growth; Forest harvesting; Forest type; Nutrient concentrations; Nutrient contents; Site-specific; Tree biomass, Biomass; Estimation; Positive ions, Forestry, aboveground biomass; accuracy assessment; acid deposition; allometry; atmospheric deposition; calcium; cation; estimation method; forest ecosystem; forest soil; harvesting; magnesium; nutrient cycling; potassium; soil nutrient, Biomass; Cations; Equations; Estimation; Forestry, Canada },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-84868631661&partnerID=40&md5=d2af8ff3cb43efafd141c7b1a76d2f7c },
}

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