Record Display for the EPA National Library Catalog


Main Title Possible Red Spruce Decline: Contributions of Tree-Ring Analysis.
Author Van Deusen, P. C. ; Reams, G. A. ; Cook, E. R. ;
CORP Author Corvallis Environmental Research Lab., OR. ;Southern Forest Experiment Station, New Orleans, LA. ;Oregon State Univ., Corvallis. ;Lamont-Doherty Geological Observatory, Palisades, NY.
Publisher c1991
Year Published 1991
Report Number EPA/600/J-91/061;
Stock Number PB91-196428
Additional Subjects Acid rain ; Air pollution effects(Plants) ; Climate ; Plant growth ; Mortality ; Reprints ; Red spruce ; Forest decline ; Tree-ring analysis ; Stand dynamics
Library Call Number Additional Info Location Last
NTIS  PB91-196428 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 7p
In studies of the northeastern red spruce ecosystem, several points evoke some agreement: (1) many high-elevation sites exhibit substantial post-1960 mortality that could be due to winter injury; (2) there is widespread pre-1950 growth increase with a subsequent post-1960 growth decrease; (3) many locations show none of these effects; and (4) dendro-climate models suggest that late summer and early winter temperatures of the previous year are significant determinants of red spruce year-to-year growth. It is a mistake to advocate a single cause at this time, because there is compelling evidence that both climate and stand dynamics are involved to some degree. The study of long-term forest trends based on tree-ring data is difficult and subject to interpretation, but it is unlikely that other data is available for most natural forest areas. In fact, progress made in the study of northeastern red spruce owes much to tree-ring analysis, and other ecological studies could benefit as well.