Comparison of logging residue from lump sum and log scale timber sales.

Data from 1973 and 1980 logging residues studies were used to compare the volume of residue from lump sum and log scale timber sales. Covariance analysis was used to adjust the mean volume for each data set for potential variation resulting from differences in stand conditions. Mean residue volumes from the two sale types were significantly different at the 5-percent...

Effective residual life of carbaryl for protecting ponderosa pine from attack by western pine beetle.

Residual activity of carbaryl protected lodgepole pine against mountain pine beetle, Dillon, Colorado, 1982 and 1983

The mountain pine beetle (Dendroctonus ponderosae Hopkins) is the most destructive insect that attacks lodgepole pine (Pinus contorta Dougl.), a species valued for multiple uses throughout North America. The effective residual life of carbaryl, applied as a 2 percent suspension of Sevimol to the bark of lodgepole pine to prevent...

Pulpwood production in the Northeast - 1983

This annual assessment of the pulpwood production and receipts for the 14 states in the Northeast Region shows that in 1983 total production reached 8,673,800 cords. This was up 3 percent (221,600 cords) from 1982. The roundwood portion increased by less than 1 percent to 6,330,000 cords, whereas the residue portion rose by 10 percent to 2,343,800 cord equivalents. The...

Midsouth Pulpwood Prices, 1983

The average price per cord for Midsouth roundwood pulpwood increased less than 1 percent to $48.38 in 1983. The average price for a green ton of chipped mill residues fell 9.3 percent to $23.34. Sawdust prices averaged $13.04 per green ton, a 42.2 percent increase over 1982 prices. Prices for rail delivery of wood fiber continue to be slightly lower than truck...

Logging damage using an individual tree selection practice in Appalachian hardwood stands

Four West Virginia hardwood stands, managed using individual-tree selection for the past 30 years, were examined after the third and, in one instance, the fourth periodic harvest to determine the severity of logging damage. On existing skid roads, trees were removed with a rubber-tired skidder or a crawler tractor with a rubber-tired arch. Logging damage reduced...

Alternate biomass harvesting systems using conventional equipment

Three harvesting methods were field tested in two stand types. Costs and stand utilization rates were developed for a conventional harvesting system, without energy wood recovery; a two-pass roundwood and energy wood system; and a one-pass system that harvests roundwood and energy wood. The systems harvested 20-acre test blocks in two pine pulpwood plantations and in a...

Volume and Growth Predictions for Thinned Even-Aged Natural Longleaf Pine Stands in the East Gulf Area

Encouraged by the high quality and marketability of longleaf pine (Pinus palustris Mill.), many landowners are taking advantage of recent improvements in longleaf regeneration techniques (Mann 1969, 197O; Croker and Boyer 1975; Farrar and White 1983; Dennington and Farrar 1983) and are growing longleaf pine today. Successful longleaf timber management demands...