Long-term animal impact modifies potential production of N.sub.2./sub.O from pasture soil

0333997 - BC 2010 RIV NL eng J - Journal Article
Brůček, Petr - Šimek, Miloslav - Hynšt, Jaroslav
Long-term animal impact modifies potential production of N₂O from pasture soil.
Biology and Fertility of Soils. Roč. 46, č. 1 (2009), s. 27-36. ISSN 0178-2762. E-ISSN 1432-0789
R&D Projects: GA MŠMT LC06066; GA AV ČR IAA600660605
Institutional research plan: CEZ:AV0Z60660521
Keywords : nitrous oxide * nitrate * emissions
Subject RIV: EH - Ecology, Behaviour
Impact factor: 1.757, year: 2009

At cattle overwintering areas, inputs of nutrients in animal excrements create conditions favourable for intensive microbial activity in soil. During nitrogen transformations, significant amounts of N₂O are released, which makes overwintering areas important sources of N₂O emission. In previous studies, however, increasing intensity of long-term cattle impact did not always increase emissions of N₂O from the soil: in some cases, N₂O emissions from the soil were lower at the most impacted area than at the moderately impacted one. Thus, the relationships between the level of long-term animal impact and potential production of N₂O from soil by denitrification were investigated in field and laboratory experiments. Field measurements indicated that the production of N₂O after glucose and nitrate amendments was greater in severely and moderately impacted locations than in an unimpacted location.
Permanent Link: http://hdl.handle.net/11104/0178845