Treesearch

The timber resource of the Central Wisconsin Survey Unit increased 4.2% in commercial forest area and increased 75% in growing-stock volume between 1968 and 1983. Highlights and statistics from the fourth inventory of this unit are presented for area, volume, growth, mortality, removals, utilization, and biomass.

Timber harvests on the Superior and Chippewa National Forests in Minnesota are projected to increase substantially by 2030. The increasing demand for aspen may affect the total harvests. Both forests need to give high priority to aspen management.

Discusses 1983 production and receipts and production for recent years in the Lake and Central 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 1983 production and receipt data for Illinois, Indiana, Iowa, and Missouri and shows four production classes by county.

The fourth inventory of Wisconsin's timber resource shows that commercial forest area in the Southeast Survey Unit increased from 904 to 909 thousand acres between 1968 and 1983. During the same period growing-stock volume increased 37%. Highlights and statistics are presented on area, volume, growth, mortality, and removals.

The timber resource of the Southwest Wisconsin Survey Unit increased 29% in commercial forest area and increased 52% in growing-stock volume between 1968 and 1983. Highlights and statistics from the fourth inventory of this unit are presented for area, volume, growth, mortality, removals, utilization, and biomass.

Presents total aboveground ovendry biomass estimates by stratum and species for 13 plant community types located in northeastern Minnesota.

Estimates the number and distribution of nonindustrial private forest landowners in Michigan by size class and owner attitudes and objectives concerning forest ownership, management, and use. Provides 57 tables relating to owner and property characteristics for the state and its Forest Survey Units.

Discusses recent Wisconsin forest industry trends; production and receipts of pulpwood, saw logs, and veneer logs; and production of fuelwood and other timber products in 1981. Reports on logging residue, on wood and bark residue generated at primary wood-using mills, and on disposition of this mill residue.

The fourth inventory of the timber resource of Wisconsin shows a 2% increase in commercial forest area and a 39% gain in growing-stock volume between 1968 and 1983. Presented are highlights and statistics on area, volume, growth, mortality, removals, utilization, and biomass.

This bulletin contains the results of a detailed study of 1983 fuelwood production and sources in Illinois.