WorldCat Identities

Dykstra, Dennis P.

Overview
Works: 44 works in 135 publications in 3 languages and 1,719 library holdings
Genres: Conference papers and proceedings  Handbooks and manuals 
Roles: Author, Other, Editor
Classifications: SD538, 634.9
Publication Timeline
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Most widely held works by Dennis P Dykstra
FAO model code of forest harvesting practice by Dennis P Dykstra( Book )

13 editions published between 1994 and 1996 in English and held by 200 WorldCat member libraries worldwide

Mathematical programming for natural resource management by Dennis P Dykstra( Book )

9 editions published in 1984 in English and held by 196 WorldCat member libraries worldwide

The Global forest sector : an analytical perspective by Dennis P Dykstra( Book )

8 editions published in 1987 in English and held by 133 WorldCat member libraries worldwide

Forest codes of practice : contributing to environmentally sound forest operations : proceedings of an FAO/IUFRO Meeting of Experts on Forest Practices, Feldafing, Germany, 11-14 December 1994 by Dennis P Dykstra( Book )

8 editions published between 1994 and 1996 in English and held by 123 WorldCat member libraries worldwide

Programs for road network planning by Ward W Carson( Book )

5 editions published in 1978 in English and held by 95 WorldCat member libraries worldwide

A synthesis of biomass utilization for bioenergy production in the western United States by David L Nicholls( Book )

4 editions published in 2008 in English and held by 57 WorldCat member libraries worldwide

We examine the use of woody residues, primarily from forest harvesting or wood products manufacturing operations (and to a limited degree from urban wood wastes), as a feedstock for direct-combustion bioenergy systems for electrical or thermal power applications. We examine opportunities for utilizing biomass for energy at several different scales, with an emphasis on larger scale electrical power generation at stand-alone facilities, and on smaller scale facilities (thermal heating only) such as governmental, educational, or other institutional facilities. We then identify west-wide barriers that tend to inhibit bioenergy applications, including accessibility, terrain, harvesting costs, and capital costs. Finally, we evaluate the role of government as a catalyst in stimulating new technologies and new uses of biomass material
Forest growth and timber quality : crown models and simulation methods for sustainable forest management : proceedings of an international conference : Portland, OR, USA, August 7-10, 2007 by Dennis P Dykstra( Book )

7 editions published between 2007 and 2010 in English and held by 53 WorldCat member libraries worldwide

The purpose of the international conference from which these proceedings are drawn was to explore relationships between forest management activities and timber quality. Sessions were organized to explore models and simulation methodologies that contribute to an understanding of tree development over time and the ways that management and harvesting activities can influence the quality of timber products recovered from those trees. Five keynote addresses, 29 plenary presentations, and 16 poster presentations covered the full breadth of forest growth and timber quality issues related to forest management. These proceedings comprise 19 papers based on presentations and posters, plus 28 abstracts for presentations whose authors chose not to write full papers. In addition, the proceedings include abstracts and slides from the presentations prepared by three keynote speakers who elected not to write papers for the proceedings. The conference was attended by 75 participants from 19 countries who represented universities, private companies, and government research institutes
Promoting stewardship of forests in the humid forest zone of anglophone west and central Africa : final report of a collaborative research project undertaken by the United Nations Environment Programme and the Center for International Forestry Research by Dennis P Dykstra( Book )

8 editions published in 1996 in English and Portuguese and held by 39 WorldCat member libraries worldwide

Forestry status in Anglophone West and Central Africa. Silviculture and forest management practices. Management control systems. Biodiversity and the conservation of non-timber forest products. Inter-generational issues in sustainable forest management. Socio-economic factors influencing sustainable forest management. Policies and Legislation. Strategies and incentives for sustainable forest management. Areas for future research
Effect of habitat-improvement thinnings on lumber products from coastal Douglas-fir by Dennis P Dykstra( Book )

3 editions published in 2016 in English and held by 29 WorldCat member libraries worldwide

Production rates and costs for cable, balloon, and helicopter yarding systems in old-growth Douglas-fir by Dennis P Dykstra( Book )

2 editions published in 1975 in English and held by 21 WorldCat member libraries worldwide

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 first field season were limited to a single harvesting prescription (clearcutting) and to conventional cutting patterns. Six yarding systems were studied: highlead, North Bend skyline, Grabinski running skyline, shotgun skyline ("flyer"), balloon, inverted skyline, and helicopter. Results of this study suggest that productive yarding time is a function of yarding distance, volume per turn, number of logs per turn, and conditions at the hooking site. For the helicopter and balloon, productive time also is influenced by chord slope and tagline length. Delays and downtime are important segments of total yarding time for all systems and are unpredictable for the most part. Thus, future analysis of delays may lead to significant improvements in yarding production rates. The report includes a procedure for estimating direct yarding costs from time-study data gathered on a sampling basis. Direct yarding cost is often the largest single item on an appraisal or logging cost analysis, and usually the most difficult to estimate. Sufficient detail is included in the explanation of the procedure to permit its use by field personnel in harvest unit planning and appraisal
Information systems in forestry : a brief overview by Dennis P Dykstra( Book )

5 editions published in 1995 in English and held by 19 WorldCat member libraries worldwide

Reduced-impact logging guidelines for lowland and hill dipterocarp forests in Indonesia by Plinio Sist( Book )

8 editions published in 1998 in English and Undetermined and held by 18 WorldCat member libraries worldwide

This report describes Reduced-Impact Logging (RIL) which will be implemented in the lowland and hill dipterocarp forest of the Bulungan Model Forest project in East Kalimantan, Indonesia. It is anticipated that through the implementation and supervision of the RIL practices described in this document, the timber concession operators (INHUTANI II) can expect to: reduce disturbances to soil and residual vegetation by at least 50% in comparison wiht conventional logging operations where these guidelines are not applied; limit overall direct impacts to the forest to 25%; conserve wildlife and other forest resources, including non timber forest products (NTFPs), threatened and endangered species, keystone plant resources, and water; diminish direct logging costs by at least 15% and protect the long-term integrity and value of the permanent forest estate
Production rates and costs for yarding by cable, balloon, and helicopter compared for clearcuttings and partial cuttings by Dennis P Dykstra( Book )

2 editions published in 1976 in English and held by 16 WorldCat member libraries worldwide

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 second field season were made of three yarding systems: running skyline, balloon haulback, and heavy-lift helicopter. The running skyline was observed in a partial cutting, the balloon in a clearcutting, and the helicopter in both clearcuttings and partial cuttings. All of the cutting units were designed to reduce damage to the appearance of the landscape. Results of the analyses suggest that productive yarding time is a function of yarding distance, volume per turn and per log, chordslope, and numbers of logs or chokers per turn. For the running skyline and the balloon, lateral yarding distance was also an important determinant of productive yarding time. In addition, the number of men in the rigging crew was found to be a statistically significant predictor for the running skyline, as was tagline length for the balloon. For the running skyline system, the data in this study support the hypothesis that yarding production rates are significantly influenced by silvicultural treatment. For the helicopter, however, no significant difference appeared in yarding rates between the clearcutting and partial cutting treatments. The effect of cutting unit design on yarding efficiency for cable systems cannot be generalized, although it did not appear to be significant for the cutting units in the Pansy Basin Study. Certainly, cutting units can be designed for which unit shape is an important determinant of cable yarding productivity. Shape of cutting unit would not be expected to influence helicopter yarding productivity, however
Yarding delays for advanced logging systems by Dennis P Dykstra( Book )

2 editions published in 1976 in English and held by 15 WorldCat member libraries worldwide

A technique for the solution of the catenary problem in surveying by Robert L Wilson( Book )

2 editions published in 1976 in English and held by 12 WorldCat member libraries worldwide

Forest operations for sustainable forestry in the tropics : proceedings of a symposium( Book )

2 editions published in 1996 in English and held by 11 WorldCat member libraries worldwide

Code modèle FAO des pratiques d'exploitation forestière by Dennis P Dykstra( Book )

5 editions published in 1996 in French and held by 9 WorldCat member libraries worldwide

Terrain transport by farm tractors at Sao Hill, southern Tanzania by Raphael E. L Ole-Meiludie( Book )

2 editions published in 1982 in English and held by 4 WorldCat member libraries worldwide

Proceedings of the First Yale Student Symposium on Timber Harvesting, Transportation, and Utilization by Transportation and Utilization Yale Student Symposium on Timber Harvesting( Book )

2 editions published in 1978 in English and held by 3 WorldCat member libraries worldwide

 
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Alternative Names
Dykstra, D. P.

Dykstra, D. P. (Dennis P.)

Dykstra, Dennis P.

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