| 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
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB86-179207 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
12p |
| Abstract |
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). |
| Supplementary Notes |
Pub. in Environmental and Experimental Biology, v25 n4 p315-325 Oct/Dec 85. Prepared in cooperation with Dabney S. Lancaster Community Coll., Clifton Forge, VA., and Fairmont State Coll., WV. Sponsored by Corvallis Environmental Research Lab., OR. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Growth-Trend Declines of Spruce and Fir in Mid-Appalachian Subalpine Forests. |
| PUB Date Free Form |
c1985 |
| Category Codes |
2F; 48D |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/02 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
614224776 |
| Origin |
NTIS |
| Type |
CAT |
