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Production rates and costs for yarding by cable, balloon, and helicopter compared for clearcuttings and partial cuttings

Creator:: Dykstra, Dennis P. and Oregon State University. Forest Research Laboratory
Abstract:: This report supplements Research Bulletin 18 (1975) of the Forest Research Laboratory, School of Forestry, Oregon State University. Bulletin 18 summarized analyses of data for the first field season of the Pansy Basin Study. This Bulletin extends those analyses to the second, and final, field season. Time-study observations during the...
Resource Type:: Technical Report
Full Text:: , and Helicopter Compared for Clearcuttings and Partial Cuttings Dennis P. Dykstra Research Bulletin

Production rates and costs for cable, balloon, and helicopter yarding systems in old-growth Douglas-fir

Creator:: Dykstra, Dennis P. and Oregon State University. Forest Research Laboratory
Abstract:: This report describes initial results of a yarding time study for the Pansy Basin Study, a cooperative research project designed to test the performance of skylines, balloons, and helicopters operating under various conditions of timber and terrain, and over a range of silvicultural and landscape design prescriptions. Observations during the...
Resource Type:: Technical Report
Full Text:: in Old-Growth Douglas-fir COMPACT Dennis P. Dykstra Research Bulletin 18 September 1975 Forest

Aerial photo-mensuration tables

Creator:: Dilworth, J. R. (John Richard), 1914-
Abstract:: Aerial photo cruising that can be accomplished quickly, cheaply and with a satisfactory degree of accuracy has been the goal of many forest mensurationists throughout the world. As early as 1925, photo cruising was accomplished successfully by Professor R. Hugershoff and his associates in Germany. The development of this technique...
Resource Type:: Technical Report
Full Text:: iENT STATION FOREST RESEARCH DIVISION Research Nbte Not 46 December, 1959 Forestry AERIAL PHOTO

Fire weather studies on Bald Mountain

Creator:: Berg, Alan B., Lowry, William P., 1927-, and Oregon Forest Lands Research Center
Resource Type:: Technical Report
Full Text:: . Lookout with Fenno Mt. Lookout Bald Mt Lookout with Valsetz Guard Station DEGREE OF ACCEPTABLE AGREEMENT

Strength and related properties of Douglas fir from mill samples

Creator:: Snodgrass, James D. and Noskowiak, Arthur F.
Resource Type:: Technical Report
Full Text:: Research Division,at the time this study was made. This bulletin was based on research done jointly by

Skyline thinning a western hemlock-Sitka spruce stand : harvesting costs and stand damage

Creator:: Kellogg, L. D. (Loren D.), Olsen, Eldon D., Hargrave, Michael A., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: com- munity, and the general public. As a research bulletin, this publication is one of a series that

Oregon hardwood timber

Creator:: Overholser, James L. and Oregon State University. Forest Research Laboratory
Abstract:: This report summarizes published information on Oregon hardwoods. Discussions of the trees and their woods include strength properties; appearance; gluability; machinability; steam bending; seasoning; treatability and durability; and special products.
Resource Type:: Technical Report
Full Text:: li II IIII 11 12 0142857743 'rch Bulletin 16 44 O7 - COMPACT-A45 no.16 'cop.2 I October Oregon

Predicting merchantable volume in cubic feet to a variable top and in Scribner board feet to a 6-inch top for six major conifers of southwest Oregon

Creator:: Walters, David K., Hann, David W., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: scientific com- munity, and the general public. As a research bulletin, this publication is one of a series

Log grade studies in the ponderosa pine region : lumber grade recovery from Douglas fir, western larch, and white fir at Halfway, Oregon

Creator:: Forest Products Research Center
Abstract:: Second of a planned series of mill studies to test the adequacy of a log grading system for species associated with ponderosa pine, the study reported was made with the cooperation of Stilwell-Pengilley Lumber Company, under the direction of a committee representing participating agencies, namely: Bureau of Indian Affairs Bureau...
Resource Type:: Technical Report
Full Text:: Northwest Forest and Range Experiment Station United States Forest Service, Region 6 Western Pine

Environmental factors affecting spruce budworm growth

Creator:: Wagg, John William Bruce and Oregon Forest Lands Research Center
Abstract:: The spruce budworm is an important enemy of the Douglas fir-true fir forests in Oregon. It can be successfully controlled by aerial spraying with DDT. The influence of air temperature on spruce budworm growth, the growth of the host, and interrelationships between insect and host were studied on 15 areas...
Resource Type:: Technical Report
Full Text:: Bulletin No. 11 August 1958 • • • Forest Lands Research Center Its Purpose Develop the full

ScholarsArchive@OSU

Production rates and costs for yarding by cable, balloon, and helicopter compared for clearcuttings and partial cuttings

Production rates and costs for cable, balloon, and helicopter yarding systems in old-growth Douglas-fir

Aerial photo-mensuration tables

Fire weather studies on Bald Mountain

Strength and related properties of Douglas fir from mill samples

Skyline thinning a western hemlock-Sitka spruce stand : harvesting costs and stand damage

Oregon hardwood timber

Predicting merchantable volume in cubic feet to a variable top and in Scribner board feet to a 6-inch top for six major conifers of southwest Oregon

Log grade studies in the ponderosa pine region : lumber grade recovery from Douglas fir, western larch, and white fir at Halfway, Oregon

Environmental factors affecting spruce budworm growth

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