Externally funded project

Bodenschonender Maschineneinsatz im Wald; Entwicklung und Erprobung einer neuen Prüfmethode zur Bestimmung der dynamischen Bodenbelastung


Soil damage caused by wheeling with forest working machines has recently become into the focus of attention. It is differentiated between compaction induced damages and erosive deformations of the top soil layer. Compaction is characterized by an impairment of soil functions and is primary a result of the vertical directed weight force. The combination of load forces and pedological analysis of soil stress, serves as a baseline for soil trafficability of characteristic forest soils. The Department of Soil Science of the University of Kassel is responsible for a BOMAWA (Bodenschonender Maschineneinsatz im Wald, engl. machine induced soil conservative applications in forests) sub-project about the mechanical stability and hydrological properties of forest soils called BodMech (BodenMechanik, engl. soil mechanics). The results will help to determine the risk of irreversible soil alterations. Based on laboratory analysis of undisturbed soil samples as well as in situ measurements (infiltration, shear resistance, sensors for water content) of forest soils, changes in soil functions (bulk density, air capacity, water and air flow) will be characterized. In addition, further developments of alternative technical modifications (e.g. polyurethane based bogiebelts) will be studied in respect to their impact on soil function parameters. The resulting database will provide comprehensive information to construct pedo-transfer-functions helping to assess soil trafficability of skid trails in forest ecosystems.

Principal Investigator

Last updated on 2019-30-01 at 08:07