(Article of periodic en Anglais - 2012)

Document title

Foliar nitrogen responses to the environmental gradient matrix of the Adirondack Park, New York

Authors(s) and Affiliation(s)

MCNEIL B.E. (1) ; READ J.M. (2) ; DRISCOLL C.T. (3) ;
(1) Dep. of Geology and Geography, West Virginia Univ., Morgantown, ETATS-UNIS
(2) Dep. of Geography, Univ., Syracuse, ETATS-UNIS
(3) Dep. of Civil and Environmental Engineering, Univ., Syracuse, ETATS-UNIS


The AA. relate a regional survey of foliar N data from a diverse set of forest tree species in the Adirondack Park, New York, to a holistic matrix of environmental gradients thought to control spatial variability of foliar N. Stepwise multiple regression models developed for each species indicate that neighboring species and abiotic gradients of resource availability play a lesser role, and anthropogenic influences are the strongest drivers of spatial variability in foliar N. Moreover, they find that the plasticity of the total foliar N response to measured environmental variability is strongly related to 2 indexes of a species' resource strategy : leaf mass per area and shade tolerance. These results emphasize the potentially dominant role of humans in controlling future nutrient cycling, and suggest that spatially explicit measurements of foliar N, environmental gradients, and plant resource strategies might provide a pathway to map and forecast ecosystem services at regional scales


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 : 2012, vol. 102, no1 [pp. 1-16]

Bibliographic references : 3 p.

Collation : 7 fig., 2 tabl.




Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1080/00045608.2011.595654

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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