Fluxes of nitric oxide from soils following the clearing and burning of a secondary tropical rain forest

Washington D.C.

1995

S. 25913-C25922

SonderdruckBandaufführung

174960

The oxygen treatment had no effect on NO production while acetylene significantly reduced NO emissions. The results from the substrate addition and inhibition experiments demonstrate that microbial denitrification is not a major pathway to NO production in these soils. In contrast, microbial nitrification apperars to be a critical process responsible for NO emissions throughout the clearing and burning period. Field experiments with acetylene as an inhibitor show that immediately following burning, chemical denitrification of nitrite deposited in ash supports a large peak in NO fluxes.