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Catalog
of Long Term Research Conducted by the Northeastern Research Station
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Catalog #28
| Title: |
Management Intensity Demonstrations
|
| Objective: |
To develop stocking and stand tables and growth and yield
estimates per silvicultural program. |
| Year Established: |
1950 |
| Year Completed: |
expected to continue |
| Site Description: |
Penobscot Experimental Forest, Bradley, ME. USGS 15-min series
topographic quadrangle of Orono, ME. UL: 4969400mN 528800mE
or 44deg, 48min,30 sec by 68deg,34min,00sec. LR: 4961300mN 534900mE
or 44deg, 52min, 45sec by 68deg, 37min, 30sec. Soils are derived
from glacial till composed of slate and shale geologic material.
Poorly- and very poorly-drained stony silt loams cover an average
of 54% of the area and well- and moderately well-drained stony
loams cover the remaining 46% on the average. |
| Statistical Design: |
6 different silvicultural/management programs without replication
(1 program to 1 area). |
| Likelihood of Locating Study Areas: |
100% |
| Experimental Treatments: |
The following are the 6 different silvicultural programs.
|
Program
|
Number of Acres
|
Compartment Number
|
| Selection System, Intensive Mgmt. at a 5-year operating
interval for integrated product production |
10
|
90
|
| Selection System, Extensive Mgmt. At a 15-year operating
interval for integrated product production |
10
|
91
|
| Fixed-Diameter Limit Harvest Method at a 15-year operating
interval for pulpwood production with a limited amount
of small sawlogs |
10
|
92
|
| Unregulated Commercial Clear-cut at 25- to 60-year
rotation primarily for pulpwood production |
3.3
|
94
|
| Unregulated Commercial Clear-cut at 25- to 80-year
rotation primarily for pulpwood production |
3.3
|
95
|
| Regulated Commercial Clear-cut with timber-stand-improvement
at 35- to 60-year rotation for integrated product production |
2.8
|
96
|
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| Sampling Methods: |
Field stand sampling is collected every 5 years over a total
of 39.4 acres. 100% of the areas are inventoried for trees >
or = to 4.5" d.b.h. and line transects are used for sampling
smaller trees. |
| Variables and Sampling Frequency: |
Growth = basal area and cubic feet; condition of stand; average
d.b.h.; tree sizes: seedlings = stems with secondary branching
to <0.5" d.b.h.; sapling = 0.5" d.b.h to 4.5" d.b.h.; merchantable
= 4.5" d.b.h.+, unmerchantable = 4.5" d.b.h.+;
Mortality and its cause (spruce budworm, uproot, breakage, suppression,
other).
The above-mentioned variables were collected by the schedule
below.
| Compartment Number |
Year |
|
90
|
1950,1951,1955,1959,1964,1965,1969(2),1974(2),1979(2),
1984(2),1990(2). |
|
91
|
1950,1951,1955,1959,1964,1965,1969,1975,1979(2),1984,
1990. |
|
92
|
1950,1951,1955,1959,1964,1965,1969,1975,1979(2),1984,
1990. |
|
93
|
1950,1951,1955,1959, 1964, 1969, 1972. |
|
94
|
1972,1975,1979,1984,1990. |
|
95
|
1972 (2),1975,1979,1984,1990. |
|
96
|
1972,1973,1975,1979,1982,1984,1990. |
|
| QA/QC Practices: |
Visual check of raw data and the use of error-checking computer
programs. Field check plots were maintained. |
| Data Storage: |
~5 mbytes on PC, paper, and diskettes. |
| Global Change Research Applications: |
Studies of Ecosystem Processes |
| Data Availability: |
1996 |
| Publications and Reports: |
Hart, A.C. 1964. The Penobscot management intensity demonstration
plots. Res. Paper NE-25. Upper Darby, PA: U.S. Department of
Agriculture, Forest Service, Northeastern Forest Experiment
Station. 24 p.
Penobscot Experimental Forest Fact Sheets:
First 40 years of results (Compartment 90). March 1991.
First 35 years of results (compartment 91). March 1985.
First 35 years of results (compartment 92). March 1985.
First 35 years of results (compartment 94). May 1985.
First 12 years of results (compartment 95). April 1985.
First 12 years of results (compartment 96). May 1985.
The above are office reports of U.S. Department of Agriculture,
Forest Service, Northeastern Forest Experiment Station, Bradley,
ME. |
| Contact: |
John Brissette / Laura Kenefic, USDA Forest Service, P.O.
Box 640, Durham, NH 03824. (603) 868-7632 |
| Cooperation: |
none |
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