The thesis presents a comparative analysis of three methods for estimating the amount of dead wood biomass. The purpose of the study was to assess the accuracy, completeness of coverage, and time efficiency of each method. The results show that the national forest inventory method and the line intersect sampling method provide comparable estimates of the quantities of downed dead wood biomass. The method used by the Slovenian Forest Service consistently underestimated the quantities of downed and standing dead wood biomass, which is a result of limited coverage of dead wood biomass types and the use of broader diameter classes. For this reason, it is in this form not suitable for accurate estimation of aboveground biomass, as it would lead to systematic underestimation of quantities and incorrect projections of carbon stocks, biodiversity, and fire risk. We conclude that the national forest inventory method represents the most balanced choice between accuracy and efficiency, the line intersect sampling method provides reliable estimates of downed biomass, however it is more time-consuming, while the method used by the Slovenian Forest Service is only useful as a quick, supplementary method.
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