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Updated: Jun 5, 2026

Estimating Sediment Denitrification Rates Using Cores and N2O Microsensors
Published on: December 6, 2018
Measuring nitrification, denitrification, and related biomarkers in terrestrial geothermal ecosystems
Jeremy A Dodsworth1, Bruce Hungate, José R de la Torre
1School of Life Sciences, University of Nevada, Las Vegas, Nevada, USA.
Abstract:
Research on the nitrogen biogeochemical cycle in terrestrial geothermal ecosystems has recently been energized by the discovery of thermophilic ammonia-oxidizing archaea (AOA). This chapter describes methods that have been used for measuring nitrification and denitrification in hot spring environments, including isotope pool dilution and tracer approaches, and the acetylene block approach. The chapter also summarizes qualitative and quantitative methods for measurement of functional and phylogenetic biomarkers of thermophiles potentially involved in these processes.
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