Breitenbach, S., A.S. Grandy, K. Huizinga, T. Schmidt, and G.P. Robertson
Presented at the All Scientist Poster Reception (2006-05-09 )
Changes in nitrifier and denitrifier populations following intense soil disturbance may control inorganic soil N availability and alter trace gas fluxes. Long-term studies have demonstrated changes in these organisms and their function following long-term cultivation but the immediate and short-term effects of cultivation remain largely unknown. Our objectives are to investigate changes in nitrifier and denitrifier enzyme dynamics and their relationship to patterns of nitrous oxide flux and soil inorganic N concentrations. Additionally, we examine microbial functional diversity and species composition of cultivated and uncultivated soils.
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