Crop Tree Demonstration Areas
||To provide several crop tree demonstration areas for a variety
of stands and landowner objectives.
||expected to continue
||1. Coopers Rock State Park, east of Morgantown, WV: 10 acres
with 5 2-acre plots with 21 crop trees per acre.
2. Camp Creek State Forest (WV).
3. Savage River State Forest (MD): 16 year old upland oak stand
(predominately northern red oak, scarlet oak, white oak, chestnut
oak, red maple with black cherry, white ash, yellow poplar-cucumber)
with a site index of 70 for northern red oak.
||Demonstration Area, no standard statistical design for this
study. Case history with untreated 2-acre plots. Treatment is
based upon landowner objectives.
|Likelihood of Locating Study Areas:
||Treatment is based upon landowner objective. Examples include
crop tree release and SILVAH management (thinning to reduce
||Individual tree information is monitored and evaluated as
related to study treatment.
|Variables and Sampling Frequency:
||Independent: Timber, wildlife, and aesthetic and aesthetic
crop tree treatments. Also, SILVAH, thinning and uncut (control)
Dependent: growth response for trees: d.b.h., total height,
epicormic branches, butt-log grade.
Remeasurement schedule post logging 2-yr, 5-yr, 10-yr, and at
5-yr intervals thereafter until next treatment.
Coopers Rock Demonstration Area only: 1988 all trees >5.0"
d.b.h. were tallied by species and 2" d.b.h. class as merchantable,
cull, or dead.
||Data are visually compared to previously collected data. Accuracy
assessments are completed after each data-collection period.
Permanent employee continually supervises temporary employees.
||Raw: stand structure and grade, species, d.b.h., and number
of stems available on DG.
Species, d.b.h., And number of stems are in hardcopy. Data are
downloaded to PCs for analyses.
|Global Change Research Applications:
||Studies of Ecosystem Processes
|Publications and Reports:
||Perkey, A.W.; Wilkins, B.L.; Smith, C.H. 1994. Crop tree management
in eastern hardwoods. NA-TP-19-93. Radnor, PA: U.S. Department
of Agriculture, Forest Service, Northeastern Area State and
Private Forestry. 58 p.
||Thomas Schuler, USDA Forest
Service, P.O. Box 404, Parsons WV 26287. (304) 478-2000
||Arlyn Perkey, USDA Forest Service, Northeastern Area State
and Private Forestry.