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.
2005
Volume 8
Issue 4
Topic:
Forestry
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Kormanek M. , Walczykova M. 2005. CHARACTERISTICS OF HORIZONTAL DEFORMATION OF SOME FOREST SOILS, EJPAU 8(4), #39.
Available Online: http://www.ejpau.media.pl/volume8/issue4/abs-39.html

CHARACTERISTICS OF HORIZONTAL DEFORMATION OF SOME FOREST SOILS

Mariusz Kormanek1, Maria Walczykova2
1 Department of Forest Works Mechanization, Agricultural University of Cracow, Poland
2 Department of Machinery Management, Ergonomics and Production Processes, Faculty of Production and Power Engineering, University of Agriculture in Krakow, Poland

 

ABSTRACT



The paper presents results of measurements of horizontal shearing of soil, made by the help of wheel bevameter on four types of forest sites, i.e. fresh mixed coniferous forest (fMCF), boggy mixed pine forest (bMPF), moist mixed broadleaved forest (mMBF) and moist broadleaved forest (mBF), with consideration of different moisture variants. On the basis of obtained data two relationships were determined: between soil horizontal deformation and the circumferential (driving) force as well as between slip and the coefficient of adhesion. Grouping of the investigated soil according to their shearing stresses was made by Ward’s method of agglomerative cluster analysis. For each of the obtained agglomeration new data of slip vs. coefficient of adhesion were calculated.

Key words: forest soils, coefficient of adhesion, slip, shearing stresses, cluster analysis.


Mariusz Kormanek
Department of Forest Works Mechanization,
Agricultural University of Cracow, Poland
Al. 29 Listopada 46, 31-425 Cracow, Poland
Phone: (012) 662 5024
email: rlkorma@cyf-kr.edu.pl

Maria Walczykova
Department of Machinery Management, Ergonomics and Production Processes, Faculty of Production and Power Engineering, University of Agriculture in Krakow, Poland
Balicka 104, 30-149 Cracow, Poland
Phone: (012) 662 4634
email: rtwalczy@cyf-kr.edu.pl

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.