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Updated: Jan 5, 2026

Estimating Sediment Denitrification Rates Using Cores and N2O Microsensors
Published on: December 6, 2018
Looking back to look ahead: a vision for soil denitrification research
Maya Almaraz1, Michelle Y Wong2, Wendy H Yang3
1National Center for Ecological Analysis and Synthesis, University of California-Santa Barbara, Santa Barbara, California, 93101, USA.
Soil denitrification is crucial for nutrient cycling but poorly understood. Future research should focus on measuring nitrogen gas (N2) production, expanding geographic scope, and standardizing methods for better ecosystem nitrogen budgets.
Area of Science:
- Soil Science
- Ecology
- Biogeochemistry
Background:
- Denitrification regulates ecosystem nutrient availability and reactive nitrogen production.
- It is a critical but poorly constrained process in terrestrial ecosystem nitrogen budgets.
Purpose of the Study:
- To identify research gaps and opportunities in soil denitrification studies.
- To provide recommendations for advancing the understanding of denitrification.
Main Methods:
- Censused peer-reviewed soil denitrification literature from 1975-2015.
- Analyzed study methodologies, geographical distribution, and reported measurements.
Main Results:
- Only one-third of studies measured both nitrous oxide (N2O) and dinitrogen (N2) fluxes.
- Most studies were lab-based, focused on surface soils in North America/Europe, and used treatment manipulations.
- Acetylene inhibition was a common method for measuring N2 production.
Conclusions:
- Recommend improved N2 measurement technologies and expanded research in tropics/subsoils.
- Advocate for standardized experiments on unmanipulated soils and precise terminology.
- Propose coordinated research efforts, standardized metadata, and a global research network.
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