Recent changes in the montane spruce-fir
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Andrew J. Friedland
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Article
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1989
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Springer
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English
โ 511 KB
Intensive study of the montane spruce-fir forests of the northeastern United States has been underway since 1980. Crown-vigor assessments, tree-ring studies, and resurveys of plots established in the 1960's have revealed a deterioration of the red spruce populations at high elevations in New England