Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

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Janeček A. , Dvořák J. 2002. OPTIMISATION OF THE DESIGN AND OPERATION CAPACITIES OF MOBILE CUTTING AND MANIPULATION SYSTEM TO MINIMISE SOIL DISTURBANCE AND CONTAMINANT LOAD IN FORESTS, EJPAU 5(2), #01.
Available Online: http://www.ejpau.media.pl/volume5/issue2/forestry/abs-01.html

ABSTRACT

The main subject of the article is optimisation of the design and operation capacities of mobile cutting and manipulation systems functioning in a forest ecosystem. Conditions were found to minimise the product volume related erosion.
The production system analysed is taken as that one with incoming flows of material and energy. The design and operational capacities are governing quantities for the system operation. The amount of cutting-manipulation erosion per unit volume of biomass worked (i.e. erosion related to the volume of cut and manipulated wood; related erosion) was one of the most important analysed factors.
System and mathematical analysis of the criterion function was accomplished. The optimum capacities of mobile field systems at which the minimum related erosion is reached were determined. The theoretical findings were verified in an experiment.

Key words: forest ecosystems; economy; ecology; system analysis; mathematical modelling erosion.

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