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(Article of periodic en Anglais - 2011)

Document title

Multiscale influences of climate on upper treeline dynamics in the Southern Rocky Mountains, USA : evidence of intraregional variability and bioclimatic thresholds in response to twentieth-century warming

Authors(s) and Affiliation(s)

ELLIOTT G.P. (1) ; KIPFMUELLER K.F. (2) ;
(1) Dep. of Geography, Univ. of Missouri, Columbia, ETATS-UNIS
(2) Dep. of Geography, Univ. of Minnesota, Minneapolis, ETATS-UNIS

Abstract

By using dendrochronological techniques, the AA. reconstructed tree establishment at upper treeline on 6 mountain peaks within the Front Range and Sangre de Cristo Mountains. They compared age-structure data with climate using Spearman's rank correlation coefficients between annual and seasonal climate indexes and tree establishment dates at both regional (southern Rockies) and landscape scales (mountain range). Regime-shift analysis detected thresholds in temperature, precipitation, and tree establishment data. The results highlight the intraregional variability in treeline sensitivity to climate in the southern Rocky Mountains and the usefulness of using a multiscale approach coupled with regime-shift analysis to examine the influence of twentieth-century climate on treeline

Source

Article of periodic

published at : Annals of the Association of American Geographers / ISSN 0004-5608 / CODEN AAAGAK

Editor : Association of American Geographers, Washington, DC - ETATS-UNIS (1911)

Millesime : 2011, vol. 101, no6 [pp. 1181-1203]

Bibliographic references : 3,5 p.

Collation : 9 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 5096

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1080/00045608.2011.584288

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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