||To monitor regeneration of birch trees growing on clear-cut
areas. The data collected provides an excellent demonstration
of the financial and silvicutural capabilities of the management
||expected to continue
||Original stand was northern hardwood forest between 90 and
200 years-old (old growth). Composition dominated by yellow
birch and beech with >10% paper birch and even less of sugar
maple, red maple, white ash, and hemlock.
||Compartment 18 and 20 = 1 area of 7.1 acres
These 2 areas were the site for 3 blocks with 4 0.44-acre plots.
|Likelihood of Locating Study Areas:
||100% cruise to determine merchantable volume: 1967.
Merchantable wood was logged in compartments 18 & 20
(7.1 acres). Scarification occurred in 5.28 acres of this
area (95% of ground surface was scarified). The study area
was surveyed to establish boundaries for treatments. Applied
4 treatments: 1) control (no treatment), 2) seed only, 3)
light fertilization, 4) heavy fertilization. Fertilizer =
NPK15-10-10 and limestone was dolomitic. Seeding was applied
using a cyclone seeder with a mix of seed and sawdust: 1968.
Herbicide was applied: 1969.
All remaining live trees 1" tall were injected with herbicide:
|Variables and Sampling Frequency:
||Inventory of paper birch, yellow birch, other commercial species,
pin cherry included height (feet) and (cm), stocking levels
(% birch), and basal area (feet squared per acre): 1970, 1972,
||DG; some summarized but unanalyzed.
|Global Change Research Applications:
||Studies of Ecosystem Processes
Model Development and Application
|Publications and Reports:
||none to date.
||William Leak, USDA Forest Service, P.O. Box 640, Durham NH
03824. (603) 868-7655