Evaluation of the nitrogen isotope-pairing method for measuring benthic denitrification: A simulation analysis

J.J. Middelburg, K.E.R. Soetaert, P.M.J. Herman

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

    Abstract

    The nitrogen isotope-pairing method to measure sedimentary denitrification is evaluated by means of a general diagenetic model that describes the depth distribution of O-2, NH4+, (NO3- )-N-14, and (NO3-)-N-15, among others. The model simulations demonstrate that isotope fractionation effects during denitrification can be neglected, but that nonuniform mixing of added (NO3-)-N-15 with locally produced (NO3-)-N-14 causes underestimation of in situ rates of denitrification. Enrichment of bottom water with (NO3-)-N-15 concentrations above ambient levels not only results in enhanced rates of denitrification, but may also change in situ rates of coupled nitrification- denitrification. However, the resulting rates usually deviate
    Original languageEnglish
    Pages (from-to)1839-1844
    JournalLimnology and Oceanography
    Volume41
    Issue number8
    DOIs
    Publication statusPublished - 1996

    Fingerprint

    Dive into the research topics of 'Evaluation of the nitrogen isotope-pairing method for measuring benthic denitrification: A simulation analysis'. Together they form a unique fingerprint.

    Cite this