DBPapers
DOI: 10.5593/SGEM2014/B32/S14.067

THE WAY TO REDUCE ECOLOGICAL IMPACT ON FOREST SOILS CAUSED BY WOOD SKIDDING

I. Grigorev, O. Burmistrova,M. Stepanishcheva, G. Gasparian
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-14-8 / ISSN 1314-2704, June 19-25, 2014, Book 3, Vol. 2, 501-508 pp

ABSTRACT
This article regards logging machines impact on ground, consist of two layers: wood harvesting wastes (top layer) and skidroad soil (bottom layer). Authors propose mathematical model of rut formation, taking into account changes soils characteristic after machine passover, and the algorithm for rut depth calculation in case of multiple passover through same area . To determine rut depth, formed on run by logging machinery, strengthen with wood harvesting wastes, it is used two-layer ground compaction model under compressive load. According to modeling results regression equation is obtained, which allows to determine in practice soil relative compaction (and further formed rut depth), without complex calculations. Receipt equation takes into account the influence of average wood harvesting wastes layer thickness on soil deformation, as well as passover number along the route. Calculations are performed using author program for numerical solution of initial simultaneous equations. Comparison of calculation results with the results of earlier experiments demonstrate adequacy of the methodology for rut depth determination considering multiple passovers and strengthen wood harvesting wastes.

Keywords: forest soils, ecological affect, soil compaction, wood harvesting wastes

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