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Catalog of Long Term Research Conducted by the Northeastern Research Station

Catalog #49

Management Strategies for Allegheny Hardwood Forests
1) To determine long-term differences in the volume and value growth and yield of Allegheny hardwood stands under different management systems. 
2) To determine the effect of these management systems on the establishment of regeneration.
1980
2060
Kane Experimental Forest and other locations on the Allegheny Plateau. Forest type is cherry-maple, oak in transition.
Randomized Blocks. Five treatments are tested on 4.9-acre plots (1 treatment per plot). Each plot is replicated 6 times, at 2 separate locations, for a total of 30 treatment plots. Individual tree growth is followed on 1-acre subplots located within each 5-acre treatment plot. Seedling counts are taken on 20 0.001-acre subplots in each of the 30 treatment plots for at total of 600 total subplots.
100%
The five treatments are: even-age management, two-age management, single-tree selection, economic selection, group selection with thinning between groups. Cuttings are based on a 20-year cutting cycle for uneven-age management and 80-year even-age rotation: 1980, 2000, 2020, 2040, and 2060.
The overstory and regeneration will be inventoried before treatment at each cutting cycle (20 years). In even-age management, harvest cuttings will be scheduled so that all plots will be harvested twice in an 80-year rotation. Selection cuts will be made in all plots at 20-year intervals. Seedling counts were measured by species and height classes.
Measurements made during: 1979, 1984, 1990, 1994.
Independent: management strategy, structure, age, species composition, stand density, site.
Dependent: basal area growth, periodic yield, (board feet, cubic feet, dollar value) percent stocking and species composition of the regeneration.
Treatments were replicated. Data-entry into computer was 100% cross checked with field sheets.
Raw data by plot reside on DG and tally sheets are kept with written instructions and detailed maps to each stand. Annually, the raw data are transformed using the REGEN1 program in DG Info. System. Summarized data by plot and by stand reside in a DG-based program that can output to ASCII text files.
Studies of Ecosystem Processes
1994 
Stout, S.L. 1994. Silvicultural systems and stand dynamics in Allegheny hardwoods. Ph.D. dissertation. Yale Univ. New Haven, CT. 168 p. 

Pings, P.; Hollenhorst, S. 1993. Managing eastern hardwood forests for visual quality. In: Proceedings, 1993 northeastern recreation research symposium; 1993 April 18-20; Saratoga Springs, NY. Gen. Tech. Rep. NE-185. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 89-93.

Stout, SL 1994. Principles and practices of uneven-age management. Pages In: Quantitative silviculture for hardwood forests of the Alleghenies. Gen. Tech. Rep. NE-183. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 329-365.

Susan Stout, USDA, Forest Service, P.O. Box 267, Irvine PA 16329. (814) 563-1040
Allegheny National Forest. 
West Virginia University.

 

  

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