Record Display for the EPA National Library Catalog


Main Title Growth-Trend Declines of Spruce and Fir in Mid-Appalachian Subalpine Forests.
Author Adams, H. S. ; Stephenson, S. L. ; Blasing, T. J. ; Duvick, D. N. ;
CORP Author Oak Ridge National Lab., TN. ;Dabney S. Lancaster Community Coll., Clifton Forge, VA. ;Fairmont State Coll., WV.;Corvallis Environmental Research Lab., OR.
Year Published 1985
Report Number EPA/600/J-85/360;
Stock Number PB86-179207
Additional Subjects Growth ; Fir trees ; Forest trees ; Age determination ; Trees(Plants) ; Plant ecology ; Elevation ; Trends ; Droughts ; Mortality ; Air pollution ; Stress(Physiology) ; Climate ; Appalachian Mountains ; Insects ; Reprints ; Picea rubens ; Red spruce trees ; Abies balsamea ; Abies fraseri
Library Call Number Additional Info Location Last
NTIS  PB86-179207 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 12p
Dendroecological analysis of 258 increment growth cores collected from red spruce, balsam fir, and Fraser fir in central West Virginia and western Virginia indicates marked declines in growth-trend during the past 20 years similar to that reported for spruce and fir in high-elevation forests of the northern Appalachians. Consequently, growth-trend declines of conifers in subalpine forest ecosystems of eastern North America are apparently more widespread than previously realized and might therefore be related to a large-scale change in air quality. The initiation of growth-trend decline was often synchronous with the onset of a major drought, but the growth rates have failed to recover since the late 1960s when the drought ended. (Copyright (c) 1985 Pergamon Press Ltd).