Seasonal variability of soil structure and soil hydraulic properties

0353936 - GLÚ 2012 RIV AU eng C - Konferenční příspěvek (zahraniční konf.)
Jirků, V. - Kodešová, R. - Mühlhanselová, M. - Žigová, Anna
Seasonal variability of soil structure and soil hydraulic properties.
19th World Congress of Soil Science : soil solutions for a changing world, Brisbane, Australia, 1-6 August 2010 : proceedings. Brisbane: International Union of Soil Sciences.; Australian Society of Soil Science, 2010 - (Gilkes, R.; Pragongkep, N.), s. 145-148. ISBN 978-0-646-53783-2.
[World Congress of Soil Science /19./. Brisbane (AU), 01.08.2010-06.08.2010]
Grant CEP: GA ČR GA526/08/0434
Výzkumný záměr: CEZ:AV0Z30130516
Klíčová slova: soil structure * aggregate stability * soil hydraulic properties * micromorphological images * temporal variability
Kód oboru RIV: DF - Pedologie
http://www.iuss.org/19th%20WCSS/symposium/pdf/0483.pdf

Seasonal variability of soil properties measured in surface horizons of three soil types (Haplic Cambisol, Greyic Phaeozem, Haplic Luvisol) was studied in years 2007 and 2008. Undisturbed and disturbed soil samples were taken every month to evaluate different soil properties. In addition, micromorphological features of soil aggregates were studied in thin soil sections. Results show that the soil properties varied within the time. Aggregate stability and values of the soil properties were influenced by the climatic factors, biology activity, growth of plant roots and soil management. Values of pH slightly varied within both years at all localities. Organic matter content and aggregate stability varied significantly during the first year. However, variability of those properties was considerably lower during the second year at all localities. Porosity and soil hydraulic properties were also more variable during the first year than during the second year.
Trvalý link: http://hdl.handle.net/11104/0193043