| Habitats Terrestrial System. Forested
				Uplands Subsystem-- Hemlock-northern hardwood forest community 
					
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						| Hemlock-northern hardwood
							forest community, photo by Michael H. Nee |  |  Physical Setting: This community occurs on the two hills
				east of the Ice Pond. The forest on the northern hill is found on
				the south and west slopes from the edge of the railroad nearly to
				the summit (135–220). It covers approximately 100,000
				square meters (about 25 acres), centered at 41.454ºN,
				73.609ºW and 180 meters above sea level. On the southern
				hill the forest covers all but the summit and a portion of the
				west face, occupying approximately 200,000 square meters (about
				49 acres) and centered at 41.447ºN, 73.611ºW and 190
				meters above sea level. 
				 
					Substrate and
				Hydrology: Both sites occur on hillsides with thin, rocky
				mineral soil. Numerous seeps provide year-round moisture, but the
				soil dries out quickly.
						|  |  |  
						|  | Indian pipe (Monotropa
							uniflora), photo by Gregory A. Russo |  Biota: The
				canopy is dominated by eastern hemlock (Tsuga
				canadensis) with red oak (Quercus
				rubra), beech (Fagus
				grandifolia), yellow birch (Betua
				alleghaniensis) and black oak
				(Quercus velutina)
				as co-dominants. The dense canopy above makes the forest quite
				dark and the thick layer  of oak leaves and hemlock needles
				on the ground decompose slowly, creating a very dry and sterile
				surface substrate. Consequently, the shrub and herb layers are
				sparse or absent entirely. The hemlocks here are infested with
				the wooly adelgid (Adelges tsugae),
				but the older trees are still vigorous and regeneration is good. Cultural:
				The
				stone walls in the area go around (but not through) what is now
				hemlock forests, suggesting that these areas may have been
				hemlock forest for a long time and perhaps were not cultivated,
				although they were undoubtedly logged.
				
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