of Long Term Research Conducted by the Northeastern Research Station
Economic Control Plots
||To monitor growth and quality changes in mature oak-hickory
||expected to continue
||Vinton Furnace Experimental Forest approximately 39 deg. 12
min N lat., 82 deg. 24 min. W. long. 2 of the 3 plots are at
about 900' in elevation while 1 of the 3 plots is at about 700'.
The plots are located on middle to lower slope positions with
north or east aspect and site index from 70 to 80 for Black
Oak. The trees on the plots are about 120 years old and are
composed of mixed oaks.
||3 1-acre plots
|Likelihood of Locating Study Areas:
||control plots; no treatments.
||All trees >3.6" d.b.h. on both plots were initially and subsequently
inventoried by species and diameter at 4.5' above the ground.
Every 5 years all trees >3.6' d.b.h. are evaluated for actual
tree grade, merchantable height, number of 16' logs, number
of 4' bolts and percent cull/defect. Data collected are divided
into two principal areas: 1) Tree Growth/Volume (represented
by species, d.b.h., and merchantable height) and 2) Tree Grade/Quality
(represented by species, d.b.h., merchantable height, actual
tree grade, number of 16' logs, number of 4' bolts and defects).
|Variables and Sampling Frequency:
||d.b.h. to nearest 0.1": 1973, 1974, 1978, 1980, 1981, 1983,
1988, 1992, 1993.
Height: 1978, 1981, 1983, 1988.
Actual tree grade (USFS standard): 1973, 1978, 1981, 1983, 1988.
Cull, sweep and rot (%): 1973, 1981, 1983, 1988.
Number of 16' logs: 1978, 1981, 1983, 1988.
Number of 4' bolts: 1978, 1981, 1983, 1988.
||Field data are verified when entered into computer. Field
crews were trained by experienced field personnel.
||Only raw data collected after 1976 are available. Only summaries
are available for data collected prior to 1976. Available data
are maintained in an ORACLE database (SASQUATCH) according to
the following categories: study description, stand density plot
data, plot history, plot summaries, ingrowth summaries, plot
treatments, species descriptions, ecological data, size of opening
data. Hardcopy of some tally sheets are maintained in file cabinets.
|Global Change Research Applications:
||Studies of Ecosystem Processes
|Publications and Reports:
||none to date
||Dan Yaussy, USDA Forest Service, 359 Main Road, Delaware,
OH 43015. (740) 368-0093