Kysel Michal: Technical and economic evaluation of selected plant-based LKT (thesis), Technical University in Zvolen, Faculty of Forestry, Department of Forest mining, logistics and land improvement, Tutor: Ing. Martin Slančík, PhD., TU Zvolen, 2017. 70 p. This thesis deals with the problem of concentrating timber of technical-economic aspect of the machinery offered by the company LKT. Said literature, discussing the professionals who work with these machines are measured in the field helped me to create a graphical representation of duty cycles of concentrating timber. Technical parameters I obtained from the prospectus of the company and the owners of the tractor, which provided me with practical information on this technology. It aims to compare two machines from LKT and the LKT 81 and LKT 82. The issues outlined present trend of forest management in Slovakia. The result is a comparison and evaluation bezúväzkového and sit harness centralizing wood from LKT.