LeiLuPengEtAl2007

Référence

Lei, X., Lu, Y., Peng, C., Zhang, X., Chang, J. and Hong, L. (2007) Growth and structure development of semi-natural larch-spruce-fir (Larix olgensis-Picea jezoensis-Abies nephrolepis) forests in northeast China: 12-year results after thinning. Forest Ecology and Management, 240(1-3):165-177. (Scopus )

Résumé

Analyzing and understanding the structure and growth dynamics of semi-natural plantations is useful for their management. Since 1987, 16 plots with 4 treatments (CT: control; LT: light thinning; MT: medium thinning; and HT: heavy thinning) by 0, 20, 30 and 40% of basal area removal, respectively, and four replications were established in semi-natural larch-spruce-fir forests in northeast China. The structure and growth dynamics of semi-natural larch-spruce-fir stands and the effects of thinning on the growth, structure and diversity were examined. A mixed model repeated measures analysis of variance (RMANOVA) was used to test the effects of treatment and time. Results showed that differences in periodic annual increment (PAI) of stand basal area and volume and the individual diameter and volume among treatments changed over time in a complex statistical interaction. Thinning, however, had a significant effect on growth at tree and stand levels 12 years after thinning while the PAI of the diameter, basal area and volume was positively correlated with thinning intensity. No significant differences were found in the total stand yield among treatments. Composition of tree species group (larch, other conifers and deciduous trees) during monitoring years did not change significantly. Moreover, no significant differences were observed in tree species and size diversity among treatments in the years following thinning. Both thinning and control plots had similar understory plant diversity after the 12 year period. Univariate point pattern analysis revealed that clumped and random distributions were dominant for tree species groups in this study. The current species composition and regeneration dynamics within these semi-natural plantations suggested a development towards mixed coniferous and broad-leaved forests. Management implications for the transformation from larch plantations towards mixed broad-leaved Korean forests with a more diverse structure, the climax vegetation in this region, were discussed. © 2006 Elsevier B.V. All rights reserved.

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 { LeiLuPengEtAl2007,
    AUTHOR = { Lei, X. and Lu, Y. and Peng, C. and Zhang, X. and Chang, J. and Hong, L. },
    TITLE = { Growth and structure development of semi-natural larch-spruce-fir (Larix olgensis-Picea jezoensis-Abies nephrolepis) forests in northeast China: 12-year results after thinning },
    JOURNAL = { Forest Ecology and Management },
    YEAR = { 2007 },
    VOLUME = { 240 },
    PAGES = { 165-177 },
    NUMBER = { 1-3 },
    ABSTRACT = { Analyzing and understanding the structure and growth dynamics of semi-natural plantations is useful for their management. Since 1987, 16 plots with 4 treatments (CT: control; LT: light thinning; MT: medium thinning; and HT: heavy thinning) by 0, 20, 30 and 40% of basal area removal, respectively, and four replications were established in semi-natural larch-spruce-fir forests in northeast China. The structure and growth dynamics of semi-natural larch-spruce-fir stands and the effects of thinning on the growth, structure and diversity were examined. A mixed model repeated measures analysis of variance (RMANOVA) was used to test the effects of treatment and time. Results showed that differences in periodic annual increment (PAI) of stand basal area and volume and the individual diameter and volume among treatments changed over time in a complex statistical interaction. Thinning, however, had a significant effect on growth at tree and stand levels 12 years after thinning while the PAI of the diameter, basal area and volume was positively correlated with thinning intensity. No significant differences were found in the total stand yield among treatments. Composition of tree species group (larch, other conifers and deciduous trees) during monitoring years did not change significantly. Moreover, no significant differences were observed in tree species and size diversity among treatments in the years following thinning. Both thinning and control plots had similar understory plant diversity after the 12 year period. Univariate point pattern analysis revealed that clumped and random distributions were dominant for tree species groups in this study. The current species composition and regeneration dynamics within these semi-natural plantations suggested a development towards mixed coniferous and broad-leaved forests. Management implications for the transformation from larch plantations towards mixed broad-leaved Korean forests with a more diverse structure, the climax vegetation in this region, were discussed. © 2006 Elsevier B.V. All rights reserved. },
    COMMENT = { Cited By (since 1996): 8 Export Date: 14 May 2012 Source: Scopus CODEN: FECMD doi: 10.1016/j.foreco.2006.12.019 },
    ISSN = { 03781127 (ISSN) },
    KEYWORDS = { Growth, Semi-natural larch plantation, Stand development, Stand structure, Thinning, Forestry, Growth kinetics, Semi-natural larch plantation, Stand development, Stand structures, Softwoods, aboveground biomass, community composition, coniferous forest, forest management, growth, plantation forestry, population distribution, regeneration, species diversity, stand dynamics, stand structure, thinning, understory, variance analysis, Abies, Growth, Larix, Picea, Asia, China, Eurasia, Far East, Abies, Abies nephrolepis, Coniferophyta, Larix, Larix gmelinii var. olgensis, Picea, Picea jezoensis },
    OWNER = { Luc },
    TIMESTAMP = { 2012.05.14 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-33846855535&partnerID=40&md5=6350d44d1006da61a36525c42744c433 },
}

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

Abonnez-vous à
l'Infolettre du CEF!

********************************************************** ************* Écoles d'été et formation **************************** **********************************************************

Écoles d'été et formations

********************************************************** ***************** 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...