EJPAU 2008. Dvořák J. , Karnet P. , Rusnáková P. COMPARISION BETWEEN ELECTRONIC ACCEPTANCES RECORDED BY HARVESTER AND MEASURING FRAME KESAT IN THE CONVERSION DEPOT

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.

2008
Volume 11
Issue 4

Topic:

Forestry

ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES

Dvořák J. , Karnet P. , Rusnáková P. 2008. COMPARISION BETWEEN ELECTRONIC ACCEPTANCES RECORDED BY HARVESTER AND MEASURING FRAME KESAT IN THE CONVERSION DEPOT, EJPAU 11(4), #08.
Available Online: http://www.ejpau.media.pl/volume11/issue4/abs-08.html

COMPARISION BETWEEN ELECTRONIC ACCEPTANCES RECORDED BY HARVESTER AND MEASURING FRAME KESAT IN THE CONVERSION DEPOT

Jiří Dvořák¹, Pavel Karnet², Pavla Rusnáková³
¹ Department of Forest Harvesting, Faculty of Forestry and Wood Sciences, Czech University of Life Science, Prague, Czech Republic
² Czech University of Life Science Prague, University Forestry Establishment at Kostelec n.C.l., Czech Republic
³ Prague Polyedr, a.s.

ABSTRACT

The high-performance harvester Rottne H-20 is used in final felling of conifer stands in the natural forest of Polabi region. The round wood, aggregate and pulpwood are the most often produced assortments. 48.0–58.8 % of assortment volume is made-up of pine and spruce round wood. The measuring frame KESAT takes over these assortments in the log conversion depot. When we compare the electronic acceptance of software DASA 4 of the Harvester H-20 mentioned above with the measuring frame KESAT, we can see quantity differences. Summarization of these possible differences made clear for us the need for monitoring and measuring of wood samples. Qualitative wood acceptances will characterize the natural conditions of stands and the possibilities of the wood production. The quantity difference should not get over 2 % between the harvester and the measuring frame KESAT. The quantity differences lead to the financial and wood-producing devaluation of the forest production. In the case we find out some statistically significant difference between the acceptance tests, we define a correcting coefficient for the timber value and the financial risk assessment, which are among supplying and consumer firms. The financial loss of one softwood cubic meter can be up to 1850,- CZK (pine) and 2450,- CZK (spruce) in the Czech Republic.

Key words: electronic harvester acceptance, measuring frame, correction coefficient.

Jiří Dvořák
Department of Forest Harvesting,
Faculty of Forestry and Wood Sciences,
Czech University of Life Science, Prague, Czech Republic
Kamýcká 129 Praha 6 - Suchdol, 165 21, Czech Republic
email: DvorakJ@fle.czu.cz

Pavel Karnet
Czech University of Life Science Prague,
University Forestry Establishment at Kostelec n.C.l., Czech Republic
Nam. Smirickych 1, Kostelec n. C.l., Czech Republic
email: karnet@slp.cz

Pavla Rusnáková
Prague Polyedr, a.s.
Nadrazni 35, Borohradek, 517 24, Czech Republic
email: rusnakova@polyedr.cz

Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.