Fig. 3
From: Predicting rut depth induced by an 8-wheeled forwarder in fine-grained boreal forest soils
Influence of the VWC and cumulative mass of machine passes on rut depth with a constant BD of 1.3 g cm−3 and thickness of humus layer of 4 cm (a) and with 0.7 g cm−3 and 12 cm, respectively (b). 30T to 120T refers to cumulative masses between 30 t and 120 t