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dc.contributor.author
Hildt, Eduardo
dc.contributor.author
Leszczuk, Andrés Alejandro
dc.contributor.author
Mac Donagh, Patricio Miguel
dc.contributor.author
Schlichter, Tomás Miguel
dc.date.available
2023-11-23T15:34:52Z
dc.date.issued
2020-01
dc.identifier.citation
Hildt, Eduardo; Leszczuk, Andrés Alejandro; Mac Donagh, Patricio Miguel; Schlichter, Tomás Miguel; Time consumption analysis of forwarder activities in thinning; Croation Forests; Croatian Journal Of Forest Engineering; 41; 1; 1-2020; 13-24
dc.identifier.issn
1845-5719
dc.identifier.uri
http://hdl.handle.net/11336/218543
dc.description.abstract
Forwarding can be divided into separate work elements. These are affected by several factors: forwarding distance, load volume, and types of assortments harvested. For a detailed planning of thinning, productivity models should include these factors. This study analysed the time consumption of forwarder thinning operations in five pine plantations in the north-east of Argentina, determining how the log size and log concentration affect each work element. Time-and-motion studies were carried out, recording the activities with digital video cameras, and tracking the forwarder movements with global navigation satellite system (GNSS) receivers. Different linear mixed models were fitted to estimate the time consumption of each work element in relation to different predictive factors. When driving on the road, the forwarders had an average speed of 71.6 m min-1 empty and 75.7 m min-1 loaded. When driving in the stand, the average speed was 56.9 m min-1 empty and 52.2 m min-1 loaded. These speeds did not correlate with the forwarder size or load volume. For the loading and unloading elements, the linear mixed model explained 56% and 49% of the variability considering only the fixed effect of the logs size and the load volume. For driving while loading, the total volume loaded, and the log concentration of the assortment loaded explained 50% of the time consumption variability, with 17% being explained by random effects. The general time and productivity model developed can be applied to support accurate decisions in the process of thinning planning.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Croation Forests
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
CUT-TO-LENGTH
dc.subject
LOADING
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LOG CONCENTRATION
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LOG SIZE
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LOGGING
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PAYLOAD
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PRODUCTIVITY
dc.subject.classification
Silvicultura
dc.subject.classification
Agricultura, Silvicultura y Pesca
dc.subject.classification
CIENCIAS AGRÍCOLAS
dc.title
Time consumption analysis of forwarder activities in thinning
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-11-21T11:49:15Z
dc.journal.volume
41
dc.journal.number
1
dc.journal.pagination
13-24
dc.journal.pais
Croacia
dc.journal.ciudad
Zagreb
dc.description.fil
Fil: Hildt, Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; Argentina. Universidad Nacional de Misiones; Argentina
dc.description.fil
Fil: Leszczuk, Andrés Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; Argentina
dc.description.fil
Fil: Mac Donagh, Patricio Miguel. Universidad Nacional de Misiones. Facultad de Cs.forestales. Departamento de Economía y Producción.; Argentina
dc.description.fil
Fil: Schlichter, Tomás Miguel. Universidad de Buenos Aires. Facultad de Agronomia. Escuela Para Graduados; Argentina
dc.journal.title
Croatian Journal Of Forest Engineering
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://crojfe.com/archive/volume-41-no-1/time-consumption-analysis-of-forwarder-activities-in-thinning/
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.5552/crojfe.2020.615
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