Treesearch

Discusses 1997 production and receipts and recent production for other years in the Lake, Central, and Plains States. Shows Michigan, Minnesota, and Wisconsin production by species for each county and compares production by Forest Survey Unit with that of previous years. Presents 1997 production and receipt data for Illinois, Indiana, Iowa, and Missouri, and shows five production classes by county. Includes the 1997 production and receipts for the Plains States by species group and kind of material.

We report on biological legacies resulting from a major windstorm in a Minnesota aspen forest and suggest guidelines for managing legacies with silvicultural disturbance.

Summarizes recent efforts that have completed the grouse restoration program in Missouri. Presents information on grouse abundance and trends from short- and long-term monitoring at release sites. Reviews ruffed rouse hunting in Missouri, and examines two case studies of grouse response to habitat management.

Examines the stand diameter-density relationship of aspen across North America and Scandanavia, and how the level of this relationship might be climatically influenced.

The fourth inventory of Kansas' forests reports 52.4 million acres of land, of which 1.5 million acres are forested. Presents an in-depth analysis of the forest resources and contains detailed tables of area volume, growth, removals, mortality, and ownership.

The third inventory of North Dakota's forests reports 44.1 million acres of land, of which 673 thousand acres are forested. This paper contains detailed tables related to area, volume, growth, removals, mortality, and ownership of North Dakota's forests.

Presents maps of late-spring freeze characteristics for the northeastern and north central United States based on heat-sum thresholds and historic climate data. Discusses patterns seen in the maps. Provides examples and ways these maps could be used by resource managers and research scientists.

Successful application of the single-tree selection system in Ozark oak forests depends on sustaining adequate recruitment of reproduction into the overstory. In turn, this requires maintaining stand density at ecologically appropriate levels. The ecological requirements for oak recruitment are discussed and guiding curves are presented that meet those requirements.

Research results and ongoing research activities in field performance of planted trees, seedling propagation, physiology, genetics, acorn germination, and natural regeneration for oaks are described in 17 abstracts.

The fifth inventory of Wisconsin's forests is presented from the perspective of habitat type as a classification tool. Habitat type classifies forests based on the species composition of the understory plant community. Various forest attributes are summarized by habitat type and management implications are discussed.