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Full-Text Articles in Physical Sciences and Mathematics
Converting Forest Residue To Structural Flakeboard - The Fingerling Concept, United States Department Of Agriculture, Forest Service
Converting Forest Residue To Structural Flakeboard - The Fingerling Concept, United States Department Of Agriculture, Forest Service
Forestry
Structural-grade flakeboard experimentally manufactured from forest residues showed mean strengths above 5,500 psi and stiffness (MOE) above 600,000 psi. For economical transport, residues are chipped into "fingerlings" in the woods. Chipping rates are estimated at 50 tons per hour for large residues, and 15 tons per hour for small residues -- using different machines. Depending on the harvesting system selected, estimated costs of fingerlings delivered to the mill range from $25 to $33 per bone-dry ton for systems other than cable yarders.
Grazing On National Forest System Lands: Cost Of Increasing Capacity In The Northern Region, United States Department Of Agriculture, Forest Service
Grazing On National Forest System Lands: Cost Of Increasing Capacity In The Northern Region, United States Department Of Agriculture, Forest Service
Forestry
Sample grazing allotments on Ranger Districts in the Northern Region (USDA Forest Service) were surveyed by questionaire to determine the feasibility of increasing grazing capacity through additional range improvements. The survey included an inventory of existing grazing capacity and the specific kind and cost of proposed improvements. Costs of improvements were amortized and aggregated for each Forest Service Planning Area. The resulting costs were compared with the increased grazing capacity measured in animal unit months (AUM) to determine the cost per additional unit of capacity.