Earticle

초록

영어

The efficiency of skidding stems and loading logs was investigated in Daxin forest farm, Linjiang Forest Bureau, Jilin Forest Industry Group by using a loader together with a winch and retaining plate. During skidding operations, the average of skidding distance and time are 86.15 m and 9.68 minute, respectively, the average of skidding quantity and number of stems per skidding circle is 1.12m3 and 3. The productivity of skidding is 29.62 m3 per machine team. During loading operations, the average of loading time is 2.93 minute, respectively, the average of loading quantity and number of logs per loading circle is 0.78m3 and 5.1, the productivity of loading is 52.6 m3 per machine team. The regression results show that the skidding efficiencies reduced with increasing skidding time and skidding distance. However, the relationships between skidding efficiencies and skidding quantity per skidding circle were not evident. The correlation results show that skidding efficiency is significantly different among skidding distance, skidding time, skidding quantity per skidding circle, interaction between skidding distance and time, interaction between skidding quantity and numbers of stem or log. The production rate of tracked tractor is higher than wheeled tractor no matter stem or log skidding operations.

목차

Abstract
 1. Introduction
 2. Research Area and Operation Condition
 3. Methods
  3.1. Skidding Efficiency and Loading Efficiency Data Measured
  3.2. Data Analysis
 4. Results
  4.1. Stem Skidding
  4.2. Log L
 5. Conclusions
 Acknowledgements
 References

키워드

저자

• Deling Yang [ Key Laboratory of Forest Sustainable Management and Environmental Microorganism Engineering of Heilongjiang Province Northeast Forestry University Harbin, China ]
• Wenshu Lin [ Key Laboratory of Forest Sustainable Management and Environmental Microorganism Engineering of Heilongjiang Province Northeast Forestry University Harbin, China ]
• Jinzhuo Wu [ Key Laboratory of Forest Sustainable Management and Environmental Microorganism Engineering of Heilongjiang Province Northeast Forestry University Harbin, China ]
• Lihai Wang [ Key Laboratory of Forest Sustainable Management and Environmental Microorganism Engineering of Heilongjiang Province Northeast Forestry University Harbin, China ] Corresponding author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of u- and e- Service, Science and Technology

• 간기

  격월간

• pISSN

  2005-4246

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605