Acta Univ. Agric. Silvic. Mendelianae Brun. 2015, 63, 841-852

https://doi.org/10.11118/actaun201563030841
Published online 2015-06-28

Spatial Modeling of a New Technological Typification in Forestry Based on Multicriteria Evaluation of Skidding Technologies

Michal Synek, Martin Klimánek

Department of Forest Management and Applied Geoinformatics, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic

The study describes a new system of technological typification in forestry based on multicriteria evaluation of environmentally friendly use of common skidding technologies. A farm tractor, skidder, cable system, forwarder, and forwarder in combination with harvester were selected as model skidding technologies. The proposed model determines one of the four categories in terms of their environmentally friendly use: 1) Fully suitable, 2) Suitable, 3) Unsuitable – not excluded and 4) Unsuitable for every forest stand and individual skidding technology. The Saaty matrix was used to define weights of input parameters for multicriteria evaluation. The selected input parameters included: slope inclination, ground bearing capacity, risk of logging-transportation erosion hazard, presence and size of obstacles, skidding distance, terrain shape and age of stands. Stocking and areal representation of selected tree species were added to the evaluation of forwarder-harvester combination. Different equipment (standard tires, low-pressure tires, wheel tracks) and climatic conditions (dry, wet) were also taken into account in the evaluation of the model. A multicriteria evaluation was carried out by means of GIS tools in SW ESRI ArcGIS Desktop. The model was applied to the selected experimental territory in the upper part of the basin of the Oskava river and it was verified in different forest stands and terrain conditions in the northern part of the Mendel University Training Forest Enterprise Křtiny. Verification of model results was carried out in randomly selected stands with the overall area representing more than 10% of the total forest area in the experimental territory and more than 8% of the total forest area in the verification territory.

Funding

Results obtained with the support of the NAZV QH71159 project titled “Multicriteria evaluation modeling of environmentally friendly use of skidding technologies in forestry” are published in the paper. Authors hereof thank to the state enterprise of The Forests of Czech Republic for providing data for the purposes of this study.

References

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