Estimating daytime ecosystem respiration from eddy-flux data

Dan Bruhn, Teis Nørgaard Mikkelsen, Mathias Herbst, Werner L. Kutsch, Marilyn C. Ball, Kim Pilegaard

    Research output: Contribution to journalJournal articleResearchpeer-review


    To understand what governs the patterns of net ecosystem exchange of CO2, an understanding of factors influencing the component fluxes, ecosystem respiration and gross primary production is needed. In the present paper, we introduce an alternative method for estimating daytime ecosystem respiration based on whole ecosystem fluxes from a linear regression of photosynthetic photon flux density data vs. daytime net ecosystem exchange data at forest ecosystem level. This method is based on the principles of the Kok-method applied at leaf level for estimating daytime respiration. We demonstrate the method with field data and provide a discussion of the limitations of the method.
    Original languageEnglish
    Issue number2
    Pages (from-to)309-313
    Publication statusPublished - 2011


    • Bio systems
    • Environment and climate


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