LamontagneBauceMargolis2002

Référence

Lamontagne, M., Bauce, E., Margolis, H.A. (2002) Testing the ecophysiological basis for the control of monoterpene concentrations in thinned and unthinned balsam fir stands across different drainage classes. Oecologia, 130(1):15-24.

Résumé

Stand thinning across different soil drainage types was used to test the ecophysiological basis for the control of foliar monoterpenes in current-year foliage of balsam trees [Abies balsamea (L.) P. Mill.] the year following treatment. Photosynthetic capacity (A(max)) was greater on mesic sites than on sub-hygric and hydric sites (1.81, 1.33 and 0.88 mu mol m(-2) s(-1), respectively) and greater in mid-July than at the end of June (1.86 vs 0.77 mu mol m(-2) s(-1)). Foliar N was greater on thinned plots than control plots (2.6 vs 2.2 g m(-2)); starch was greater on mesic control plots than mesic thinned plots (16.3 vs 10.9 g m(-2)); and total soluble sugars (TSS) were higher in mid-July than at the end of June (16.5 vs 12.8 g m(-2)). Total monoterpenes, as well as five individual monoterpenes, showed a complex interaction between site drainage class, thinning treatment and time of sampling (P <0.05). For all sites and dates combined, total monoterpenes were negatively correlated with specific leaf area (r(2)=0.46), and positively but weakly correlated with A(max) (r(2)=0.35), foliar N (r(2)=0.29) and TSS (r(2)=0.24). Total monoterpenes were not correlated with the different measures of carbon to nitrogen ratio as predicted by the carbon-nutrient balance hypothesis. Our results offer partial support to the different hypotheses proposing that foliage having greater resource availability, enzymatic machinery and potential for building storage structures will have greater monoterpene content. However, the strength of the relationships with monoterpenes often varied with sampling date, suggesting that phenological development may play a strong role in determining which factors control monoterpenes at a given time.

Format EndNote

Vous pouvez importer cette référence dans EndNote.

Format BibTeX-CSV

Vous pouvez importer cette référence en format BibTeX-CSV.

Format BibTeX

Vous pouvez copier l'entrée BibTeX de cette référence ci-bas, ou l'importer directement dans un logiciel tel que JabRef .

@ARTICLE { LamontagneBauceMargolis2002,
    AUTHOR = { Lamontagne, M. and Bauce, E. and Margolis, H.A. },
    TITLE = { Testing the ecophysiological basis for the control of monoterpene concentrations in thinned and unthinned balsam fir stands across different drainage classes },
    JOURNAL = { Oecologia },
    YEAR = { 2002 },
    VOLUME = { 130 },
    PAGES = { 15-24 },
    NUMBER = { 1 },
    NOTE = { 507MP Times Cited:4 Cited References Count:50 },
    ABSTRACT = { Stand thinning across different soil drainage types was used to test the ecophysiological basis for the control of foliar monoterpenes in current-year foliage of balsam trees [Abies balsamea (L.) P. Mill.] the year following treatment. Photosynthetic capacity (A(max)) was greater on mesic sites than on sub-hygric and hydric sites (1.81, 1.33 and 0.88 mu mol m(-2) s(-1), respectively) and greater in mid-July than at the end of June (1.86 vs 0.77 mu mol m(-2) s(-1)). Foliar N was greater on thinned plots than control plots (2.6 vs 2.2 g m(-2)); starch was greater on mesic control plots than mesic thinned plots (16.3 vs 10.9 g m(-2)); and total soluble sugars (TSS) were higher in mid-July than at the end of June (16.5 vs 12.8 g m(-2)). Total monoterpenes, as well as five individual monoterpenes, showed a complex interaction between site drainage class, thinning treatment and time of sampling (P <0.05). For all sites and dates combined, total monoterpenes were negatively correlated with specific leaf area (r(2)=0.46), and positively but weakly correlated with A(max) (r(2)=0.35), foliar N (r(2)=0.29) and TSS (r(2)=0.24). Total monoterpenes were not correlated with the different measures of carbon to nitrogen ratio as predicted by the carbon-nutrient balance hypothesis. Our results offer partial support to the different hypotheses proposing that foliage having greater resource availability, enzymatic machinery and potential for building storage structures will have greater monoterpene content. However, the strength of the relationships with monoterpenes often varied with sampling date, suggesting that phenological development may play a strong role in determining which factors control monoterpenes at a given time. },
    KEYWORDS = { balsam fir thinning drainage monoterpenes light resource allocation carbon-nutrient balance nitrogen-use efficiency spruce budworm growth photosynthetic capacity pseudotsuga-menziesii chemical-composition field conditions pine-seedlings boreal forest leaf nitrogen },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.05 },
}

********************************************************** ***************** Facebook Twitter *********************** **********************************************************

Abonnez-vous à
l'Infolettre du CEF!

********************************************************** ***************** Pub - Symphonies_Boreales ****************** **********************************************************

********************************************************** ***************** Boîte à trucs *************** **********************************************************

CEF-Référence
La référence vedette !

Jérémie Alluard (2016) Les statistiques au moments de la rédaction 

  • Ce document a pour but de guider les étudiants à intégrer de manière appropriée une analyse statistique dans leur rapport de recherche.

Voir les autres...