Pulse Brain · Growing Health Evidence Index
Tier 4 — Narrative / commentaryPeer-reviewed

Measuring denitrification and the N2O:(N2O + N2) emission ratio from terrestrial soils

Johannes Friedl, L. M. Cardenas, Timothy J. Clough, Michael Dannenmann, Chunsheng Hu, Clemens Scheer

Current Opinion in Environmental Sustainability · 2020

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Summary

This review synthesises methodological approaches for quantifying denitrification products from terrestrial soils, addressing the particular challenge of measuring dinitrogen (N2) against atmospheric background. The authors evaluate inhibitor-based, atmospheric exchange, and isotopic methods, proposing quality parameters for application across scales. They conclude that method combinations with real-time monitoring and soil-gas diffusivity modelling offer promise for improved quantification, but highlight the need for more accessible field methods.

UK applicability

These methodological recommendations are directly applicable to UK upland and lowland soil research, particularly given the relevance of denitrification to nitrogen management in agriculture and water quality. The emphasis on field-scale methods is pertinent to UK farming and environmental monitoring contexts.

Key measures

N2O and N2 emission rates; N2O:(N2O + N2) emission ratio; denitrification pathways and production mechanisms

Outcomes reported

This review examined and evaluated multiple methodological approaches for quantifying both dinitrogen (N2) and nitrous oxide (N2O) emissions from soil denitrification, including inhibitor-based, helium/oxygen atmosphere exchange, and isotopic methods. The authors identified quality parameters for measuring denitrification across scales from controlled environments to field conditions.

Theme
Measurement & metrics
Subject
Measurement methods & nutrient profiling
Study type
Narrative Review
Study design
Narrative review
Source type
Peer-reviewed study
Status
Published
Geography
International
System type
Laboratory / in vitro
DOI
10.1016/j.cosust.2020.08.006
Catalogue ID
BFmowc1zyw-w8jizv

Topic tags

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