Treesearch

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.

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 without annotations.

Shows how existing information on the historic prices of various timber species and products can be used to provide a measure of the market risk, return, and efficient portfolios of alternative forestry investments using examples from three Midwestern states.

Lists citations of the world`s literature on cell and tissue culture of poplars from 1934 to 1990.

Summarizes 15 years of studying white-tailed deer social ecology, movements, winter nutritional physiology, reproduction, survival, mortality, and population changes in the central Superior National Forest. Applied results of nutritional experiments with captive deer to interpretation of data from wild deer.

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 solving skills, (4) a modeling strategy that united opposites, and (5) the importance of cogency in forest research.

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.

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.

Streamside forests are crucial to the protection and enhancement of the water resources of the Eastern United States. They are extremely complex ecosystems that help provide optimum food and habitat for stream communities as well as being useful in mitigating or controlling nonpoint source pollution (NPS). Used as a component of an integrated management system including nutrient management and sediment and erosion control practices, streamside forests can produce a number of beneficial effects on the quality of water resources. Streamside forests can be effective in removing excess...