Comparison of Volumetric and Deflametric Method with Wind Erosion Equation (WEQ) to Determine Soil Erosion by Wind Events on Selected Soil Unit / Porovnanie Volumetrickej s Deflametrickej Metódy s Rovnicou Veternej Erózie Pre Určenie Pôdnej Erózie Spôsobenej Účinkami Vetra na Vybraných Pôdnych Jednotkách
Comparison of Volumetric and Deflametric Method with Wind Erosion Equation (WEQ) to Determine Soil Erosion by Wind Events on Selected Soil Unit / Porovnanie Volumetrickej s Deflametrickej Metódy s Rovnicou Veternej Erózie Pre Určenie Pôdnej Erózie Spôsobenej Účinkami Vetra na Vybraných Pôdnych Jednotkách
PDFAuthors: Viktor Varga, Lenka Lackoóvá, Jozef Streďanský and Tomáš Urban
Volume/Issue: Volume 16: Issue 1
Published online: 06 Sep 2013
Pages: 18–23
Abstract
Despite the fact that wind erosion seriously affects the sustainable use of land in large part of the world and even though in Slovakia there is not that big percentage of agricultural land influence by wind erosion it still has an effect on the soil. Valid wind erosion model that predicts wind-blown mass transport on regional scale is lacking. The objective of this research was to compare two empiric methods to determine wind erosion. One of them is deflametric method, in which we capture soil units in one hour during wind erosion events. Second method we used was volumetric method where we calculate amount of eroded soil behind the wind barrier. With deflametric method we determined that actual wind speed needed to lift and carry soil unites is 9 - 10 m.s-1. With volumetric calculation we found out that our measurement is 1.7 times higher than in WEQ model. We can say that models can portray certain areas and soil types, but only field measurement can provide precise amount of eroded soil on particular land.
Keywords: wind erosion, volumetric method, deflametric method, WEQ, veterná erózia, volumetrická metóda, deflametrická metóda, WEQ
References
GREŠOVÁ L. - STREĎANSKÝ J. 2011. Modelové riešenie rovnice veternej erózie v GIS. In: Acta horticulturae et regiotecturae Nitra : SPU 2011 s. 24-28. ISSN 1338-5259
PASÁK V. 1964. Ochrana půdy proti větrné erozi. Praha : ÚVTI - MZLVH 1964 13 s.
SKIDMORE E. L. 2000. Air soil and water quality as influenced by wind erosion and strategies for mitigation. In: Agronenviron Second International Symposium of New Technologies for Environmental Monitoring and Agro-Applications Proceedings Tekirdag Turkey 2000 p. 216-221.
STREĎANSKÝ J. 1993a. Veterná erózia pôdy. Nitra : VŠP 1993. 66 s. ISBN 80-7137-094-0.
STREĎANSKÝ J. - DOBÁK D. - SOLLÁR M. - KLIMENT M. 2005.
Súčasné spôsoby určovania intensity veternejerózie v SR. In: Bioklimatologie současnosti a budoucnosti (CD-ROM). Kštiny : ČSBS ČHMU MZLU 2005 s. 34-38. ISBN 80-86-690-31-08.
ŠVEHLÍK R. 2007. Větrné eroze na jihovýchodní Moravě v obrazech. 1. vyd. Praha : TEMPO PRESS 2007. 39 s. ISBN 80-86-485-02-1.
ŠVEHLÍK R. 1996. Větrné eroze půdy na Jižní Moravě. 1. vyd. Uherský Brod 1996. 108 s.
URBAN T. 2012. Stanovenie intenzity veternej erózie pomocou matematického modelu - rovnice weq upravenej pre podmienky Slovenska v katastrálnom území Močenok: dizertačná práca. Nitra : SPU 2012 149 s.
ZACHAR D. 1970. Erózia pôdy. Bratislava : SAV 1970 528 s.