Browsing NIBIO Brage by Author "Talbot, Bruce"

A comparison of two methods of data collection for modelling productivity of harvesters: manual time study and follow-up study using on-board-computer stem records

Brewer, Julia; Talbot, Bruce; Belbo, Helmer; Ackerman, Pierre; Ackerman, Simon (Journal article; Peer reviewed, 2018-04-13)

Productivity of a mechanized P. patula cut-to-length harvesting operation was estimated and modelled using two methods of data collection: manual time study and follow-up study using StanForD stem files. The objective of ...

An inverse shortest path approach to find forwarder productivity functions

Søvde, Nils Egil; Astrup, Rasmus Andreas; Talbot, Bruce (Journal article; Peer reviewed, 2018-06-05)

This paper presents an optimization model designed to find productivity functions for timber forwarding. Timber forwarding or skidding has for some 25 years been calculated using shortest path formulations on grid networks. ...

An operational UAV-based approach for stand-level assessment of soil disturbance after forest harvesting

Talbot, Bruce; Rahlf, Johannes; Astrup, Rasmus Andreas (Journal article; Peer reviewed, 2018-01-16)

The effectiveness of generating virtual transects on unmanned aerial vehicle-derived orthomosaics was evaluated in estimating the extent of soil disturbance by severity class. Combinations of 4 transect lengths (5–50 m) ...

Applications of DEA and SFA in benchmarking studies in forestry: state-of-the-art and future directions

Strange, Niels; Bogetoft, Peter; Ottaviani Aalmo, Giovanna; Talbot, Bruce; Holt, Anders Holm; Astrup, Rasmus Andreas (Peer reviewed; Journal article, 2021-05-17)

The forestry sector is constantly looking for ways for making data-driven decisions and improving efficiency. The application of Data Envelopment Analysis (DEA) and Stochastic Frontier Analysis (SFA) allow the users to go ...

Assessing Harvested Sites in a Forested Boreal Mountain Catchment through Global Forest Watch

Rossi, Fernando; Breidenbach, Johannes; Puliti, Stefano; Astrup, Rasmus Andreas; Talbot, Bruce (Journal article; Peer reviewed, 2019-03-06)

Global Forest Watch (GFW) provides a global map of annual forest cover loss (FCL) produced from Landsat imagery, offering a potentially powerful tool for monitoring changes in forest cover. In managed forests, FCL primarily ...

Combining adapted dump trucks and reduced road standards in lowering the cost threshold for accessing timber in Western Norway

Talbot, Bruce; Belbo, Helmer; Ackerman, Pierre (Others, 2010)

CONTINUOUS WORK STRAIN MEASUREMENT IN CABLE YARDER RIGGING

Nitteberg, Morten; Talbot, Bruce; Stampfer, Karl; Kindernay, Daniel (Others, 2010)

Depth-to-water maps as predictors of rut severity in fully mechanized harvesting operations

Heppelmann, Joachim; Talbot, Bruce; Antón Fernandéz, Clara; Astrup, Rasmus Andreas (Peer reviewed; Journal article, 2022-03-14)

The preservation of the functionality of forest soil is a key aspect in planning mechanized harvesting operations. Therefore, knowledge and information about stand and soil characteristics are vital to the planning process. ...

Detection and Classification of Root and Butt-Rot (RBR) in Stumps of Norway Spruce using RGB Images and Machine Learning

Ostovar, Ahmad; Talbot, Bruce; Puliti, Stefano; Astrup, Rasmus Andreas; Ola, Ringdahl (Journal article; Peer reviewed, 2019-04-01)

Root and butt-rot (RBR) has a significant impact on both the material and economic outcome of timber harvesting, and therewith on the individual forest owner and collectively on the forest and wood processing industries. ...

The effect of tree and harvester size on productivity and harvester investment decisions

Ackerman, Simon A.; Talbot, Bruce; Astrup, Rasmus Andreas (Peer reviewed; Journal article, 2021-11-02)

Long-term machine-derived data sets comprising 140,000 trees were collected from four harvesters of equal age and similar working conditions, into two machine size classes, viz. two Ponsse Bears and two smaller Ponsse ...

Efficiency drivers in harvesting operations in mixed Boreal stands: a Norwegian case study

Ottaviani Aalmo, Giovanna; Kerstens, Pieter Jan; Belbo, Helmer; Peter, Bogetoft; Talbot, Bruce; Strange, Niels (Peer reviewed; Journal article, 2020-06-17)

This paper uses Data Envelopment Analysis (DEA) to evaluate how the technical efficiency of forest harvesting operations is influenced by terrain conditions and forest attributes, in addition to exploring the existence of ...

EXTRACTING AND CHIPPING HARDWOOD CROWNS FOR ENERGY

Suadicani, Kjell; Talbot, Bruce (Chapter, 2010)

FORDEL. En undersøkelse av driftsforholdene omkring terrenggående taubaner

Talbot, Bruce (NIBIO Rapport;2(72), Research report, 2016)

This project considers the conditions under which it might be beneficial to use terrain-going cable-yarders as opposed to building forest roads and yarding the timber directly to roadside. Yarding in the terrain implies ...

Forest Operations in Response to Environmental Challenges - Proceedings of the Nordic-Baltic Conference on Operational Research (NB-NORD)

Berg, Simon (NIBIO Bok;5(6) 2019, Book, 2019-05)

Gravemaskinmonterte bardunfrie taubaner - status og muligheter i Norge og i utlandet [Excavator-based guyline free yarders - status and opportunities in Norway and abroad]

Talbot, Bruce; Nitteberg, Morten; Kyllo, Nils Olaf (Rapport fra skog og landskap;, Research report, 2014)

Anvendelse av gravemaskinmonterte, bardunfrie taubaner er blitt mer vanlig i flere land. Under spesielle forhold har denne type taubane flere fordeler i forhold til ordinære kabelkraner med tårn. Spesielt det at en ikke ...

High-pruning of European beech (Fagus sylvatica L.) and pedunculate oak (Quercus robur L.): work efficiency for target pruning as a function of tree species, pruning height, branch characteristics, pole saw type and operator

Skovsgaard, Jens Peter; Markmann, Jacob Johan Mohr; Attocchi, Giulia; Talbot, Bruce (Journal article; Peer reviewed, 2018-02-27)

The objective of this study was to establish an operational model of productive work time per tree (work efficiency) for high-pruning of young European beech and pedunculate oak depending on tree species, pruning height, ...