Treesearch

A study of direct seeding black spruce on brushy lowland in north-central Minnesota indicates reduction of vegetation regrowth, rather than seedbed preparation, is the major requirement for success.

The 1970 Lake States veneer-log production and mill receipts were 34.4 and 37.0 million board feet, respectively. The Central States produced 23.5 million board feet and received 30.0 million board feet of veneer logs. Veneer-log production and mill receipts dropped substantially throughout the north central region from 1968.

The third inventory of Wisconsin's timber resource shows substantial gains in growing-stock and sawtimber volumes since 1956, in spite of a small decline in area of commercial forest land. Presented are text and statistics on forest area and timber volume, growth, mortality, ownership, stocking, and use in 1968. Two 30-year projections of timber growth, removals, and inventory are also presented - one assuming a high level of future timber removals and the other a low level.

Missouri roundwood production was 123.5 million cubic feet in 1969--96% hardwoods and 4% softwoods. Of this total, over half was saw logs, 1/8 was charcoal wood, and 7% was cooperage logs. Most logging is centered in and adjacent to the Eastern Ozark Region.

Analyzes trends in the hardwood veneer and plywood industry of Michigan and Wisconsin between 1964 and 1969. In that period, red oak and hard maple replaced yellow birch as the major species used. Log supplies were adequate. Wall paneling was the major end market with doorskins next. Excess plywood producing capacity is a chronic problem.

Presents the weights and the centers of gravity for the green trees and boles of balsam fir, white spruce, and red pine for use in the design of harvesting equipment.

In mid-May 1971, a northern Minnesota fire burned almost 15,000 acres of forest land. The extreme fire behavior it exhibited was the product of a number of described features. This paper documents the attendant fuel and weather conditions.

Discusses canoeist use of and opinions concerning management of the Pine River in Michigan. Users enjoyed the rapids and the wild, natural shoreline appearance and objected to littering and crowding. The present level of weekend and holiday use apparently satisfies the diversified desires of most canoeists. However, reduction of numbers or more even distribution during the day would increase the quality of the experience and lessen the resource impact. Canoeists requested modest additional facilities but expressed little concern about severely eroding streambanks and a dam they had to...

The major end product for hardwood plywood (usually birch) stock panels in 1970 was kitchen cabinets. About 1/3 of the volume was shipped to the Pacific region. Over 1/3 of the responses by wholesalers indicated that stock panel sales had declined over the preceding 3 years, chiefly because of the inroads being made by plastic covered particleboard panels. The outlook is for increased market acceptance of plastic overlaid panels resulting in declining stock panel sales.

Equations for predicting red pine (Pinus resinosa Ait.) site index from various internode lengths were developed from ring counts on sectioned trees form 69 natural stands in Minnesota. The precision of estimating site index was much improved by measuring the 5-year growth intercept beginning at 7 feet above the ground rather than at the conventional breast height. The growth intercept equation developed from natural stands in Minnesota is shown to be applicable to red pine plantations in Minnesota, New York, and Connecticut.