Index Catalog // ScholarsArchive@OSU

Creator:: Harr, R. Dennis (Robert Dennis), 1941-, Krygier, James T., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: . Denni Harr Assistant Professor oftForest_Hydrology James T. Krygier Coordinator, Forestry Extension

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

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

Creator:: Dykstra, Dennis P. and Oregon State University. Forest Research Laboratory
Abstract:: Yarding delays add significantly to the time and cost required to obtain a given quantity of timber. In this study, they increased total yarding time by as much as 28 percent. As yarding system complexity increases, the frequency of delays can also be expected to increase. For one balloon yarding...
Resource Type:: Technical Report
Full Text:: Delays for Advanced Logging Systems ti Dennis P. Dykstra Research Paper 33 October 1976 7 ' 9Fc'I

Creator:: Wilson, Robert L., Dykstra, Dennis P., Sessions, John, and Oregon State University. Forest Research Laboratory
Abstract:: A technique for solving efficiently the catenary problem encountered in surveying with tapes is presented. The theory of the catenary solution is outlined, and our technique is shown to solve correctly the catenary for all conditions. Analysis of error that compared the catenary correction to the more commonly used parabolic...
Resource Type:: Technical Report
Full Text:: Technique for the Solution of the Catenary Problem in Surveying Robert L. Wilson Dennis P. Dykstra John

Creator:: Stine, R., Gordon, J. C., Ching, Kim K., and Oregon State University. Forest Research Laboratory
Abstract:: Black cottonwood (Populus trichocarpa Torr. & Gray) cuttings were collected from five Oregon provenances along a north-south gradient. Cuttings from each provenance were grown for 1 year at two locations, one on the Willamette Valley floor and the other on the Valley margin. Survival at both locations was poor. Stem...
Resource Type:: Technical Report
Full Text:: THE WILLAMETTE VALLEY R. STINE J.C. GORDON K.K. CHING FOREJT REJEARCH LAS SCHOOL OF FORESTRY OREGON

Creator:: Hobbs, S. D. (Stephen D.), Helgerson, O. T., Southwest Oregon Forestry Intensified Research Program, and Oregon State University. Forest Research Laboratory
Resource Type:: Conference Proceeding
Full Text:: Siskiyou Mountains T. Atzet 11 The nature of skeletal soils in steep terrain S. Childs 21 Adaptations

Creator:: Oregon State University. Forest Research Laboratory
Resource Type:: Other
Full Text:: \ ( , ' .Lk .s- ___________ 'L' Y t -, 5 ri :'A. . _vt '* 1 ç11 .111 -. ç5).' \1 "1

Creator:: Oregon State University. Forest Research Laboratory and Oregon State University. College of Forestry
Resource Type:: Other
Full Text:: Resources Eric Bennett Alverdes Dameon Phillip Barrows Bryan Louis Bridwell Dennis Merle Byrd Teaching

Creator:: Oregon State University. Forest Research Laboratory
Resource Type:: Other
Full Text:: provided important information for rigging and safety. Dennis Dykstra evaluated the problem of delays in

ScholarsArchive@OSU