Crop Tree Release (Two-Age
Management) in Mature Appalachian Hardwood Stands
||To evaluate individual tree and stand response when applying
a crown release to 80- to 85-year-old codominant crop trees
growing on an excellent Appalachian hardwood site.
||expected to continue
||Fernow Experimental Forest, compartment 16A
||Case history: designed to establish 4 6-acre adjacent units.
Each unit will receive a separate treatment.
|Likelihood of Locating Study Areas:
||1) All sawtimber-size trees (11.0" d.b.h. plus) were cut using
the crop tree-crown touching approach.
2) Cut all merchantable sawtimber trees (no culls present) except
the crop trees.
3) Cut all sawtimber trees using crown-touching.
4) Cut all pole-size trees 5.0" to 0.9" d.b.h. and cut all trees
1.0" d.b.h. Plus except crop trees.
|Variables and Sampling Frequency:
||Independent: crop tree release technique and two-age management.
Dependent: tree d.b.h., quality, crown development, reproduction,
volume, and basal area.
Periodic measurement will be recorded for initial, post logging,
2-yr, 5-yr, 7-yr, 10-yr, and 5-yr thereafter until next treatment
||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:
||Miller, G. W. and T.M. Schuler. 1995. Development and quality
of reproduction in two-age central Appalachian hardwoods - 10-
year results. In: Gottschalk, K.W.; Fosbroke, S.L.C., eds. Proceedings,
10th central hardwood conference; 1995 March 5-8; Morgantown,
WV. Gen Tech. Rep. NE-197. Radnor, PA: U.S. Department of Agriculture,
Forest Service, Northeastern Forest Experiment Station. 577p.
||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.