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STAND HISTORY: AN ALTERNATIVE EXPLANATION OF RED SPRUCE RADIAL GROWTH REDUCTION
Citation:
Reams, G. AND M. Huso. STAND HISTORY: AN ALTERNATIVE EXPLANATION OF RED SPRUCE RADIAL GROWTH REDUCTION. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-90/297 (NTIS PB91146456).
Description:
Red spruce (Picea rubens Sarg.) sites from northern Maine was classified by radial growth release history. wo major releases were apparent for a majority of the sites. he first was a reduction and subsequent increase in radial increment in 1920. he second was an increase in radial increment from 1935 to 1955. ed spruce radial growth reduction in the l960s is apparent only for sites released from 1935 to 1955 (approximately 54% of the sites in this study). hese sites are now approaching the radial growth rates of the unreleased stands. irch dieback is suggested as a probable contributor to the 1935-1955 red spruce growth increase and subsequent 196Os growth reduction.