Simulation of Thinning with a Single-Grip Harvester
Abstract:A simulation model of a single-grip harvester was constructed to evaluate different silvicultural treatments and to compare different machine concepts with a minimum of confounding factors. The model simulates machine movement, boom movement, felling, delimbing, and cross-cutting in stands where both size and position of each tree are known. To validate the model, model output was compared with data from recent time studies. Effects on harvester productivity of three harvesting intensities (extraction of 30, 40, and 50% of the basal area when thinning from below) and four distances between machine positions were studied. Productivity increased with harvesting intensity and with distance between machine positions. For. Sci. 45(1):26-34.
Document Type: Journal Article
Affiliations: Forestry, Department of Operational Efficiency, Faculty of Forestry, Swedish University of Agricultural Sciences, S-901 83 Umeå, Swede--Phone: +46 (0)90 786 58 57;, Fax: +46 (0)90 786 62 78
Publication date: February 1, 1999
- Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
Forest Science is published bimonthly in February, April, June, August, October, and December.
2015 Impact Factor: 1.702
Ranking: 16 of 66 in forestry
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