United States Department of Agriculture
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.
Pulpwood production in the Lake States dropped slightyly to 8.4 million cords in 1990. Michigan, Minnesota, and Wisconsin pulpwood production is shown by county and species group.
The fourth Missouri forest inventory found 14.0 million acres of forest land in 1989, of which 13.4 million acres (96%) is timberland. This bulletin presents highlights and statistics on area, volume, growth, removals, mortality.
In 1989 the fourth forest inventory of Missouri's Prairie found 2.5 million acres of forest land, an increase of more than 26% since 1972.
Including utility poles in red pine management regimes leads to distinctly different management recommendations. Where utility pole markets exist, managing for poles will maximize net returns. To do so, plantations should be maintained above 110 ft2/ac, higher than usually recommended. In Michigan's northern lower peninsula, approximately...
Reports that planting unrooted hybrid poplar cuttings flush with the soil surface resulted in significantly fewer multiple-stem shoots compared to letting the cutting protrude 2.5 or 5.0 cm above the soil surface. There were no significant effects on shoot height growth or cutting mortality.
Reports results of the third inventory of Iowa that was completed in 1990. Highlights the results of the inventory and contains detailed tables of forest area, timber volume, growth, removals, mortality, and ownership.
Describes how irrigation significantly increased growth in three Populus species and most clones during a drought year. Clonal response to drought varied within each of the species.
Describes a trap design to use in collecting larval frass or head capsules for estimating densities of aboveground arthropods. The trap is light, compact, durable, and easily constructed from common inexpensive items.
Presents findings of an assessment of the evaluation of wildland prevention efforts by all U.S. Wildland fire management agencies, and offers recommendations for improvements in prevention valuation techniques and procedures.
Discusses recent Minnesota forest industry trends; production and receipts of pulpwood, saw logs and veneer logs; and production of other timber products in 1988. Reports on logging residue, wood and bark residue generated at primary wood-using mills, and disposition of mill residues.
Presents highlights and statistics on area, volume, growth, removals, and mortality found in the fourth forest inventory of Missouri's Riverborder.
Five papers are included that address aspects of quality in forest research. Topics cover (1) the need for a logic of inquiry, illustrated by examining forest fire policy in Western North America, (2) alternative criteria for judging the simplicity of forest models, (3) the identification and analysis of problems and the importance that scientists develop good problem...
Evaluates the performance of a Peterson Pacific 4800 chain flail delimber/debarker processing pole-size hardwoods in northern Michigan. Describes the productivity, cost, and delimbing/debarking quality achieved by the flail.
Discusses method used by the Forest Inventory and Analysis Unit for estimating timber removals. Presents the relationship of timber utilization studies, primary lumber mill studies, and forest inventory data.
Presents the soil and tree wood tissue properties (mostly chemical) of the plots that were remeasured and sampled for a study of the relation between forest condition and wet sulfate deposition along the Lake States acidic deposition gradient.
The fifth inventory of Minnesota's Aspen-Birch Unit reports 8.7 million acres of land, of which 7.4 million acres are forested. This bulletin present statistical highlights and contains detailed tables of forest area, as well as timber volume, growth, removals, mortality, and ownership.
Presents highlights and statistics on area, volume, growth, removals, and mortality from the 1989 forest inventory of the Mark Twain National Forest.
This summary of white spruce literature covers seed collection and treatment, nursery cultural practices, seedling growth patterns and measurements of seedling quality. It includes information relevant to bareroot white spruce but does not cover containerized seedlings. It is intended for forest land managers, researchers and bareroot forest nursery managers.
Contains a fairly complete set of references to the small but rapidly growing amount of literature directly related to the study of risk in forestry in the United States up to 1989. Also includes representative references for the huge literature of general financial theory dealing with risk. Includes 95 annotated references and 17 additional textbook references...