Treesearch

This report presents an analysis of the results of the third forest survey of New York as well as trends that have occurred since the previous surveys. Topics include forest area by ownership, stand size, and forest type; timber volume by species, location, and quality; biomass; timber products output for sawlogs, pulpwood, and fuelwood; and growth and removals. Forest area, volume, and growth and removals are projected through 2010. Also identified are forest management opportunities for increasing the production of major forest resources from New York's forests.

A statistical report on the third forest survey of Maine (1982) and reprocessed data from the second survey (1971). Results of the surveys are displayed in a 169 tables containing estimates of forest and timberland area, numbers of trees, timber volume, tree biomass, timber products output, and components of average annual net change in growing-stock volume for the period between surveys. These estimates were developed by several classifications including forest type, ownership, species, size, and quality. Data are presented at three levels: state, geographic sampling unit, and county.

Four timber cutting treatments - three levels of thinning and a clearcutting - were applied on 60-year-old mountain stands of Allegheny hardwoods. The stands were logged by a three-man crew using chain saws and a truck-mounted crane. Logging operations were studied, and production rates determined for tree-length logs decked at roadside. Work efficiency and productivity of the logging crew were somewhat higher on the thinning operations than on the clearcut. Labor, equipment, and road construction costs were determined and applied to production rates. Comparison of logging costs among the...

Describes the quality response of a 29-year-old upland hardwood stand grown for 6 years under different levels of residual stand density. Both the number of defects per square foot of surface area and the number of epicormic branches changed under different stocking levels. The results suggest that the effect of stocking on potential stem quality of certain species may be substantial even after a few years of treatment.

Data from remeasured Pennsylvania forest inventory plots revealed that during a 13-year period the compound rate of value change in uncut hardwood forest stands averaged 4.7 percent, and ranged from -5.5 to 18.8 percent. No well-defined means for predicting a stand's rate of value change could be identified, However, some measures of initial stand condition can be used to get a general indication of what to expect in stands with management potential. For example, stands with the highest rates of value change (averaging 7.5 percent) have (1) Tree of average basal area less than 5 inches in...

Includes operating instructions for the System 6 rough mill. Techniques are shown for making standard-size blanks, in all lengths, for each of 13 blank quality/width/thickness combinations.

Stem defects were studied over an 18-year period to determine the effect of thinning intensity on quality development of 80-year-old white oak trees. Seventy-nine white oak trees from a thinning study in Kentucky were analyzed from stereo photographs taken in 1960 and 1978. Stem-related defects were measured on the butt 8-foot and second 8-foot sections of each tree. The number of defects per square foot of surface area increased significantly at the heaviest thinning level. The data suggest that heavy thinning has a detrimental effect on potential stem quality.