Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.
2014
Volume 17
Issue 2
Topic:
Forestry
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
TajboĻ J. , MessingerovŠ V. 2014. PRODUCTION RATE AND ECONOMIC EFFICIENCY OF MID-CLASS HARVESTERS IN THINNINGS OF MOUNTAINOUS TERRAINS OF CENTRAL SLOVAKIA, EJPAU 17(2), #02.
Available Online: http://www.ejpau.media.pl/volume17/issue2/abs-02.html

PRODUCTION RATE AND ECONOMIC EFFICIENCY OF MID-CLASS HARVESTERS IN THINNINGS OF MOUNTAINOUS TERRAINS OF CENTRAL SLOVAKIA

Jozef TajboĻ, Valťria MessingerovŠ
Faculty of Forestry, Department of Forest Harvesting, Logistics and Ameliorations Technical University in Zvolen, Slovakia

 

ABSTRACT

In this paper we introduced an analysis of technological parameters of the
mid-class harvesters John Deere 770D and Valmet 911.1. We focused on their production
rate, movement and work in relation to ecological effects of their activity in
forest stands. In the next part we offered a brief analysis of the economic efficiency
of these mid-class harvesters in comparison with classic methods of timber harvesting
and skidding in thinnings in mountainous terrains of Central Slovakia – Forest
Enterprise KrivŠÚ and »ierny Balog. We obtained primary data
during the realization of premature logging in the thinning forest stands of
the mountainous terrains. This work also contained a brief description of technical
parameters of the harvesters and a proposal of an optimal or suboptimal technology
in thinnings. The results confirmed the economic efficiency of presented harvesters
in premature felling of conifer forest stands. Results of performances – Valmet
6.5 m3·h-1 and John Deere 5.7 m3·h-1 are
comparable with the results of the others authors in similar production conditions.

Key words: harvester, technology, production rate, thinning, economic efficiency.


Jozef TajboĻ
Faculty of Forestry, Department of Forest Harvesting, Logistics and Ameliorations Technical University in Zvolen, Slovakia
T.G.Masaryka 24
960 53 Zvolen
Slovakia
email: tajbos@vsld.tuzvo.sk

Valťria MessingerovŠ
Faculty of Forestry, Department of Forest Harvesting, Logistics and Ameliorations Technical University in Zvolen, Slovakia
T.G.Masaryka 24
960 53 Zvolen
Slovakia
email: messin@vsld.tuzvo.sk

Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.