Effects of cattle grazing, trampling and excrement deposition on microbial nitrogen transformations in upland soil

0338758 - BC 2010 RIV SG eng C - Konferenční příspěvek (zahraniční konf.)
Šimek, Miloslav - Čuhel, Jiří
Effects of cattle grazing, trampling and excrement deposition on microbial nitrogen transformations in upland soil.
Current Research Topics in Applied Microbiology and Microbial Biotechnology. Proceedings of the 2nd International Conference on Environmental, Industrial and Applied Microbiology (BioMicroWorld 2007). Singapore: World Scientific Publishing, 2009, s. 29-32. ISBN 978-981-283-754-7.
[Current Research Topics in Applied Microbiology and Microbial Biotechnology. International Conference on Environmental, Industrial and Applied Microbiology (BioMicroWorld 2007) /2./. Seville (ES), 28.11.2007-01.12.2007]
Grant CEP: GA AV ČR IAA600660605
Výzkumný záměr: CEZ:AV0Z60660521
Klíčová slova: nitrogen transformations * denitrification * enzyme activity
Kód oboru RIV: EH - Ekologie - společenstva

Rates of selected soil nitrogen transforming processes as well as kinetic parameters of denitrification enzymes were determined in a cattle overwintering area. The soils differed substantially in DEA, exhibited significantly different maximum reaction velocity (V) and Michaelis-Menten constant (Km) of enzymes responsible for reduction either of nitrate to nitrous oxide or of nitrous oxide to di-nitrogen. Results suggest that the cattle-induced stress alters the functioning of soil microbial community.
Trvalý link: http://hdl.handle.net/11104/0182448