Significance and Quantitative Approaches

The applieation of aeetylene and nitrogen labeling methods usually results in the determination of lower denitrification rates when compared to total nitrogen fluxes (Seitzinger et al. 1993 ef. Seetion 6.5). Apart from the above restrietions inherent to the methods themselves, the reeently published coneept of Luther et al. 

This process may outweigh nitrification in manganese-rich surface sediments and circumvents denitrification. Elevated fluxes without increasing denitrification rates and even production in oxidized sediments as observed by Seitzinger (1988) may be explained by this process. 

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