Treesearch

Presents a technical update of the management of spruce-fir forests. Integrated management of eastern spruce budworm is not yet a reality. The ecological, social, and economic knowledge needed to develop an integrated management system is not available. The conference was designed to move individuals to a higher level of spruce budworm management in the eastern spruce-fir forests.

Presents state-of-the art information on the development and use of microbial insecticides.

We analyzed the manufacture of standard-size hardwood blanks from lumber on a relatively small scale by conventional processing. Requiring an investment of just over $200,000, the conventional mill can process 500 M bf (thousand board feet) of kiln-dried lumber annually. The study focused on the economics associated with manufacture of blanks from four species - northern red oak, black cherry, hard maple, and yellow-poplar. Assuming a tax rate of 46 percent, returns ranged from 31 percent for hard maple to 38 percent for yellow-poplar. Plots were developed relating raw material input cost...

This periodic evaluation of statewide industrial timber output is based on a survey of the primary wood manufacturing plants located in Maine in 1981. It contains statistics on industrial timber harvest and plant wood reciepts and on the production and disposition of the manufacturing residues for the year. The 438.7 million ft? (12.4 million m?) of industrial roundwood produced in 1981 represented a 12 percent increase in production since 1970 when similar information was reported in detail. The production of sawlogs, pulpwood, and many other products increased during the period. Other...

This is a statistical report on the fourth forest survey of New Hampshire conducted in 1982-83 by the Forest Inventory and Analysis Unit, Northeastern Forest Experiment Station. Statistics for forest area, numbers of trees, timber volume, tree biomass, and timber products output are displayed at the state, unit, and county levels. The current inventory indicates that the state has approximately 8.0 billion cubic feet of growing-stock volume or 275.2 million tons of net green weight on 4.8121 million acres of timberland. The report includes reprocessed data from the 1973 survey for trend...

Traditional measures of volume inadequately describe the total aboveground wood resource. The 1980-82 inventory of Maine included estimates of aboveground tree biomass on timberland. There are nearly 1,504.4 million green tons of wood and bark in all trees above the ground level, or 88.2 green tons per acre of timberland. Most of the biomass is in growing stock, but 49 percent is in the tops and branches of trees, cull trees (including noncommercial tree species), salvable dead trees, saplings, and stumps above the ground.

A statistical report on the fourth forest survey of Vermont conducted in 1982-1983 by the Forest Inventory and Analysis Unit, Northeastern Forest Experiment Station. Statistics for forest area, numbers of trees, timber volume, tree biomass, and timber products output are displayed at the state, unit, and county levels. The current inventory indicates that the state has approximately 6.3 billion cubic feet of growing-stock volume or 211.9 million tons of net green weight on 4.4221 million acres of timberland. The report includes reprocessed data from the 1973 survey for trend analysis.