Počet záznamů: 1

Insights into the effect of soil pH on N.sub.2./sub.O and N.sub.2./sub. emissions and denitrifier community size and activity

  1. 1.
    0349812 - BC-A 2011 RIV US eng J - Článek v odborném periodiku
    Čuhel, Jiří - Šimek, Miloslav - Laughlin, R.J. - Bru, D. - Chéneby, D. - Watson, C.J. - Philippot, L.
    Insights into the effect of soil pH on N2O and N2 emissions and denitrifier community size and activity.
    Applied and Environmental Microbiology. Roč. 76, č. 6 (2010), s. 1870-1878 ISSN 0099-2240
    Grant CEP: GA MŠk MEB020726; GA MŠk LC06066; GA AV ČR IAA600660605
    Výzkumný záměr: CEZ:AV0Z60660521
    Klíčová slova: soil pH * N2O and N2 emissions * denitrifier community
    Kód oboru RIV: EH - Ekologie - společenstva
    Impakt faktor: 3.778, rok: 2010

    The objective of this study was to investigate how changes in soil pH affect the N2O and N2 emissions, denitrification activity, and size of a denitrifier community. We established a field experiment, situated in a grassland area, which consisted of three treatments which were repeatedly amended with a KOH solution (alkaline soil), an H2SO4 solution (acidic soil), or water (natural pH soil) over 10 months. At the site, we determined field N2O and N2 emissions using the 15N gas flux method and collected soil samples for the measurement of potential denitrification activity and quantification of the size of the denitrifying community by quantitative PCR of the narG, napA, nirS, nirK, nosZ denitrification genes. Overall, our results indicate that soil pH is of importance in determining the nature of denitrification end products.
    Trvalý link: http://hdl.handle.net/11104/0189955