20.500.12556/RUL-182876 Designing harvester trail systems for mechanised logging across diverse soil types using nominal ground pressure criteria Soil conservation during forestry operations is an increasing concern. This study proposes a theoretical model to forecast the depth of ruts associated with harvester trail systems and organisational boundary conditions, with the aim of reducing the harmful impacts of heavy logging machinery. The research combines empirical data on soil penetration resistance and soil water content of six soil types with theoretical rut depth models, emphasising the organisational dimensions of forest operations. Empirical data were gathered from sixteen soil sample plots in Slovenia. Based on this data and existing litterature, six models were developed to show the relationship between soil penetration resistance and soil water content. The maximum harvester trail length was then calculated for each soil type, based on harvest intensity and rut depth models. The findings indicate that modelled rut dept is less than 0.1 m if the soil can withstand a nominal ground pressure of 849 kPa in all analysed soil types. However, modelled rut depth of any soil type will consistently exceed 0.1 m when the soil cannot withstand a nominal ground pressure of 456 kPa. To avoid deeper ruts, it is advisable to plan and use harvester trail lengths of no more than 100 metres at 40% volumetric soil water content when the soil type is unknown. Incorporating soil type data into rut models could be an effective means of predicting rut depth at a given time, thereby boosting the efficiency of forestry operations. harvester trail nominal ground pressure soil water content forest operation soil damage rutting soil types sled kombajna nominalni pritisk na tla vsebnost vode v tleh gozdne operacije poškodbe tal kolesnice vrste tal true false true Angleški jezik Slovenski jezik Članek v reviji 2026-05-26 14:43:49 2026-05-26 14:43:56 2026-05-27 04:40:16 0000-00-00 00:00:00 2026 0 0 16 str. issue 2 Vol. 47 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2026-01-01 630*114:631.171 1848-9672 10.5552/crojfe.2026.2519 279428867 RAZ_Poje_Anton_2026.pdf RAZ_Poje_Anton_2026.pdf 1 44DA97F5C49761778CD02632C4BD6B09 3b3f184accd489d1f76dcd00d2e8cf590b514c34a2562abb4b4750e735dbd7b2 4bbd752f-5900-11f1-b0ab-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=234509 https://crojfe.com/archive/volume-47-no-2/designing-harvester-trail-systems-for-mechanised-logging-across-diverse-soil-types-using-nominal-ground-pressure-criteria/ 1 3e91c1a9-5900-11f1-b0ab-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=234508 Biotehniška fakulteta 0 0 0