| Title: |
The Effect of Deer Fencing
Erected After Clearcutting on Allegheny Hardwood Reproduction
|
| Objective: |
To determine the effect of fencing erected shortly after clearcutting
on the development of tree reproduction in the cut areas. |
| Year Established: |
1970 |
| Year Completed: |
1972 |
| Site Description: |
Allegheny National Forest. Forest Type is Cherry-Maple. Sites
are located in: Ridgway District - Elk Co., Bradford District
- McKean Co., Sheffield District - Warren Co., |
| Statistical Design: |
18 fenced areas (enclosures):10 in recently clear-cut
stands (*),3 in older clear-cutstands(**),2 in partially
cut stands (***), and 3 in uncut stands (****).
Stand
Number |
ANF
Number |
Cut |
Fenced |
Acres |
1 *
2 *
3 *
4 *
5 *
6 *
7 *
8 *
9 *
10 *
13 **
14 **
20 **
15 ***
16 ***
17 ****
18 ****
19 **** |
B3
B4
B7
R11
R2
S4
S5
S6
S8
S10
B2
S1
TGS1
S3
S9
R1
B1
S2 |
1966
1965
1966
1969
1963
1965
1965
1966
1965
1965
1957
1957
1956
1965
1966 |
1966
1966
1966
1969
1963
1966
1966
1966
1966
1966
1957
1957
1956
1965
1966
1963
1965
1965
|
0.5
0.5
0.5
8.0
0.5
0.5
0.5
0.5
0.5
0.5
1.0
1.2
1.0
1.0
0.5
0.5
1.0
1.0
|
A cluster of 9 6'-radius, 0.002-acre, sample plots were located
inside and outside of each exclosure. The sample plots are
arranged in 3 rows of 3 plots each, with 40 feet between plots.
The center plot of the outside cluster is located at least
100' from the fence to avoid atypical conditions that sometimes
exist in the heavily traveled zone near the fence perimeter.
|
| Likelihood of Locating Study Areas: |
100% |
| Experimental Treatments: |
The 0.002-acre plots are permanently marked. Fences erected
1972. Stands were previously clear-cut during 1957 thru 1966. |
| Sampling Methods: |
Trees are recorded by species and height class, and the exact
height of the tallest individual of each important species was
recorded. Statistical comparisons among fenced and unfenced
plots are made using the Student's "t" test for paired observations.
A range of criteria are used to evaluate probable future stocking
densities of the plots. |
| Variables and Sampling Frequency: |
Dependent:
Number of stems of woody species, by species and height class.
Species and density of ground cover vegetation.
Species of the tallest stem on the plot.
Height (to 0.1') of the tallest black cherry, sugar maple, red
maple, white ash, other desirable species, and other commercial
species. Indication of whether or not each of the stems (of
species listed above) are "free-to-grow".
100% Inventory: species, d.b.h., frequency: 1977, 1982, 1988. |
| QA/QC Practices: |
Data are proofed after field collection and data entry. Data
collection supervised by permanent employees. |
| Data Storage: |
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. |
| Global Change Research Applications: |
Studies of Ecosystem Processes |
| Data Availability: |
1996 |
| Publications and Reports: |
Study plan. 1970. David Marquis.
Final report. February 1974. David Marquis.
The above are office reports of U.S. Department of Agriculture,
Forest Service, Northeastern Forest Experiment Station, Warren,
PA.
Marquis, D. 1974. The impact of deer browsing on Allegheny
hardwood regeneration. Res. Paper NE-308. Upper Darby, PA:
U.S. Department of Agriculture, Forest Service, Northeastern
Forest Experiment Station.
|
| Contact: |
Susan Stout, USDA, Forest Service, P.O.
Box 267, Irvine PA 16329. (814) 563-1040 |
| Cooperation: |
Allegheny National Forest, PA. |
