Assessing the effects of site factors on the productivity of a feller buncher:a time and motion analysis  

作　　者：Ebru Bilici Abdullah E.Akay Dalia Abbas 

机构地区：[1]Department of Forestry,Dereli Vocational School,Giresun University,Giresun,Turkey [2]Department of Forest Engineering,Faculty of Forestry,Bursa Technical University,Bursa,Turkey [3]Department of Forestry,Wildlife and Fisheries,University of Tennessee,Knoxville,TN,USA [4]Department of Environmental Science,American University,Washington,DC,USA

出　　处：《Journal of Forestry Research》2019年第4期1471-1478,共8页林业研究（英文版）

摘　　要：We evaluated,for the first time in Turkey,the productivity of a feller buncher during clear-cut operations of two Brutian pine stands located in Canakkale,northwestern Turkey with different diameter classes and terrain conditions.In the first stand with 24.6 cm average DBH,the feller buncher cut full trees and moved them to roadside.In the second stand with 34.3 cm average DBH,the feller buncher cut trees in two stages due to their larger diameters and the relatively steep and rough terrain conditions of the site.The effects of specific stand features,DBH and tree height measurements were assessed through statistical analysis in relation to productivity.The results indicate that the average productivity for the first stand was about 118 m^3h^-1,while it was about 80 m3h-1 in the second stand.Even though tree diameter and volume were higher in the second stand,productivity decreased by32.3%due to extra time spent on the two-stage cutting operation.The results revealed that harvesting operations should be planned carefully and the right equipment selected by accounting for different tree sizes,terrain conditions and machine specifications in order to better understand their effects on production.We evaluated,for the first time in Turkey,the productivity of a feller buncher during clear-cut operations of two Brutian pine stands located in Canakkale,northwestern Turkey with different diameter classes and terrain conditions.In the first stand with 24.6 cm average DBH,the feller buncher cut full trees and moved them to roadside.In the second stand with 34.3 cm average DBH,the feller buncher cut trees in two stages due to their larger diameters and the relatively steep and rough terrain conditions of the site.The effects of specific stand features,DBH and tree height measurements were assessed through statistical analysis in relation to productivity.The results indicate that the average productivity for the first stand was about 118 m3h-1,while it was about 80 m3h-1 in the second stand.Even though tree diameter and volume were higher in the second stand,productivity decreased by32.3% due to extra time spent on the two-stage cutting operation.The results revealed that harvesting operations should be planned carefully and the right equipment selected by accounting for different tree sizes,terrain conditions and machine specifications in order to better understand their effects on production.

关 键 词：Timber HARVESTING FELLER BUNCHER Timber size PRODUCTIVITY TIME and motion study 

分 类 号：S[农业科学]