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Most of this forest was cleared in the late-19th and early-20th centuries. Although all individual trees species still remain, their quantities and distribution are radically different from the forest's original state. The pre-settlement forests were predominantly hemlock , white pine, and northern hardwoods forests.
Since the Forest Service began to manage the Allegheny National Forest in 1923, a different forest of hardwood trees like black cherry (that are more valuable as a timber product) was established through the use of herbicides and selective fertilizing. This weeded out the "undesirable" native trees while allowing the black cherry tree to thrive ...
Austin T. Blakeslee Natural Area, Monroe County, Pennsylvania. The northern hardwood forest is a general type of North American forest ecosystem found over much of southeastern and south-central Canada, Ontario, and Quebec, extending south into the United States in northern New England, New York, and Pennsylvania, and west along the Great Lakes to Minnesota and western Ontario.
Map of wood-filled areas in the United States, c. 2000 [1]. In the United States, the forest cover by state and territory is estimated from tree-attributes using the basic statistics reported by the Forest Inventory and Analysis (FIA) program of the Forest Service. [2]
The Appalachian hemlock–northern hardwood forest is a forest system found in the Appalachian Mountains of New Hampshire, Vermont, Massachusetts, Connecticut, New York, New Jersey, Pennsylvania, Maryland, Virginia, Eastern Kentucky, West Virginia and western North Carolina. These forests occur in deep coves, moist flats, and ravines.
Hearts Content represents E. Lucy Braun's hemlock-white pine-northern hardwood forest type. [8] The old-growth forest is from 122 acres (49 ha) to 150 acres (61 ha) in extent, but the scenic area is most famous for its 20 acres (8.1 ha) of tall white pine and Eastern hemlock . [ 9 ]
Hardwood from North American trees has a variety of commercial uses, including in furniture, carpentry, tools and musical instruments. Some timber is milled for plywood , wood veneer and construction framing , including structural support beams and studs .
Hardwood from deciduous species, such as oak, normally shows annual growth rings, but these may be absent in some tropical hardwoods. [3] Hardwoods have a more complex structure than softwoods and are often much slower growing as a result. The dominant feature separating "hardwoods" from softwoods is the presence of pores, or vessels. [4]
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