My diploma thesis focus on impact of harvestor technology on soil and damaging effect of this technology on soil in flysch area, with focus on carryinf capacity of soil. My goal was to observe factors, that are the most participent in damaging soil layers. For detecting of harmfull effects I have used typical methods, which are used for collecting data in field. I used statisctical analysis to determine basic correlations between these factors. Most important factors were moisture in soil and terrain angle, while on all forest stands the highest allowed level of damage according on Lukáč was exceeded. We also compared the difference of CO2 volume in compressed part of road and untouched ground by VAISALA MI70 machine. On the first look even without analysis was obvious that compressed soil will have much higher values. Solution on how to prevent this harmfull effects or at least minimalize them would be to observe moisture of soil in the moment and other important safety measures which are recommended in my thesis.