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Three eastern hemlock & three chestnut oak ring-width chronologies were constructed
from old- & 2nd-growth stands @ Black Rock Forest in Cornwall, NY.
These are the first such developed for the highlands of southeastern New York State
Because of Black Rock's proximity to the NYC metro area, tree-ring analyses can yield useful information for for assessing the potential impact of anthropogenic change (e.g., CO2-induced climate effects, CO2 & N fertilization, acid deposition, & severe ozone episodes). |
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Hemlock growth correlates positively with current July and
prior September precipitation, & negatively with prior June
temperature (figure above left).
Chestnut oak growth correlates positively with current June-July & prior September and December precipitation, with January temperature, & negatively with current June-July temperature (figure above right). Chestnut's correlation w/ January temperatures maybe due to its location near its N range limit in Washington Co., NY |
last updated 10/01
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