Timber harvest

Total roundwood harvested increased by less than 300 million ft between 1986 and 1991 (Table 8). The value of all roundwood timber harvested in the United States in 1991 was estimated to be 19,370 million (Table 8). The value of roundwood timber is defined as the market value at local points of dehvery, ie, deUvered to a processing faciUty. 

Timber-harvesting might involve perhaps 4% of the exposure to dust posed by other outdoor industrial activity hence, the values of Cg would be higher by a factor of 25. 

Timber harvesting Dust inhalation 5.9xl08 Dt (5.9x10 for DNT)... 

Dredging channelizing Shoreline protection Fish/hunting Timber harvest Boating ... 

Felix, E.N. (1987) Hydrologic and climatic changes in three small watersheds after timber harvest, Research Paper PNW-PR-379, Portland, OR, U.S.D.A., Forest Service, Pacific Northwest Research stateion, 13 pp. 

The Maryland Department of Natural Resources recently completed an assessment of the availability, cost, and reliability of wood fuels on the Delmarva Peninsula (14). The study concluded that cull trees and timber harvest residue could provide over 1.9 million tons of wood fuel annually at a cost to users of 12.50 per green ton. Other studies in Minnesota, New York. Oregon, and Washington are involved in similar utilization and biomass assessments to determine the availability of wood fuels for energy. 

Bull, E. L., and Carter, B. E., 1996, Tailed frogs Distribution, ecology, and association with timber harvest in northeastern Oregon, Res. Pap. PNW-RP-497 Portland, OR U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 

Tree felling with chainsaws is a dangerous business and in years past numerous contract workers were killed annually in state forests. The Commission has been working for many years to train chainsaw operators in the safe use of their machines and finally, in 1987, made it compulsory for all timber workers using chainsaws in state forests to hold accreditation certificates, to demonstrate personal competence in the safe use of chainsaws. This has been a major factor in the decline in accidents in timber harvesting which has occurred in recent years. 

Souza. A.P. et al. 2012. Ergonomic factors and production target evaluation in eucalyptus timber harvesting operations in mountainous terrains. Work. v. 41. p. 4957-A962. 

Subalpine larch is a non-timber species and its wood has essentially no commercial value. As no timber harvesting has been done, even in the best-developed stands, nor does any seem likely on the upper subalpine sites in the future, and considering cultivation difficulties, there has not been any need for seedling production for the species. On an experimental basis, seedlings have been successfully grown and outplanted (Amo et al, 1995). 

Range Euels Commercial US Lignocellulosics, wood and wood waste from timber harvesting operations Ethanol, methanol Operational... 

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