United States Department of Agriculture
Describes the tables derived from the 1968 forest survey of Wisconsin. These tables are broken down according to Wisconsin's 5 Forest Survey Units, 12 forest types, and 5 site index classes. Presents 18 tables as examples of the more than 500 that can be ordered by using the order form enclosed in the publication.
I studied reproduction of the Barn Owl (Tyto alba) in northern Utah from 1977 through 1996 documenting 451 nesting attempts by at least 500 individuals. The study site was a narrow valley bounded by the Wasatch Mountains and the Great Salt Lake. This area was formerly shrubsteppe desert, but that community is now entirely supplanted by irrigated...
Presents statistics on Minnesota's growing-stock and sawtimber volumes by county for 1977. Includes a map showing growing-stock volume classes by county.
Maximization of short-rotation forest plantation yields requires frequent applications of nutriends, especially nitrogen(N). Whole-plant growth is known to be sensitive to teh proportion of ammonium to nitrate (NH4:NO3). However, the extent to which N form affects root growth, branching and morphology is poorly understood...
Pulpwood production in the Lake States decreased from 9.6 million cords in 1995 to 9.5 million in 1996. Michigan, Minnesota, and Wisconsin pulpwood production is shown by county and species group.
Documents the biomass in 12 typical stands of puckerbrush and evaluates the feasibility of several potential systems to harvest these stands. Identifies areas of needed development for economically viable harvesting systems.
Presents a collection of U.S. research papers about chunkwood, an alternative form of comminuted wood particles that range from finger size up to fairly large, blocky particles of wood. Discusses chunkwood`s characteristics, storage and drying, machinery, and use to build low-volume roads and as furnish for composite flake products.
In art galleries, one often studies a painting from various angles and distances, seeking to discover all that is possible about the method and style of the artist and what the artist is trying to communicate. In other words the observer is trying to detremine "what is behind the painting."
Reports height and diameter growth of tamarack seed sources planted in northern Wisconsin and makes recommendations for selecting the highest-yielding sources.
Research results and ongoing research activities in oak plantings and related physiology and genetics studies are described in 30 abstracts.
An index compiled of the first 12 Central Hardwood Forest Conference proceedings indexed by title, subject, author, and species.
Reports the results of a survey of operational prescribed burns in the Lake States during 1970.
This paper describes a computer program that calculates National Fire Danger Rating Indexes. fuel moisture, buildup index, and drying factor are also available. The program is written in FORTRAN and is usable on even the smallest compiler.
A tube-type gage is economical, easy to make, and is a reliable indicator of frost depth. Gage reading were within ? 5 centimeters of indicated true frost depth 95 percent of the time.
The regeneration and dominance of northern red oak (Quercus rubra L.) has been associated with fire throughout eastern North America. Red oak in central Ontario grows near the northern edge of its distribution in mixed hardwood - coniferous forests under mesic conditions where it competes with more shade-tolerant species. We hypothesized that the...
Two computational strategies are exhibited in hand-computing the solution of an elementary system identification problem.
Yet another new exotic forest pest has been discovered in North America, and this time the infestation is centered in Michigan and Ontario. In May and June 2002, adults of an unidentified buprestid beetle were collected from ash (Fraxinus) trees in the Detroit area of southeastern Michigan.
Shows pictorially the relations between exterior defect indicators and their underlying defects for old-growth sugar maple in the Lake States.
Site index curves are given for forest tree species found in the eastern United States. A total of 127 site curves are presented including formulation for computing both total height and site index.