Cited by 163Soil Carbon and Nitrogen DynamicsWastewater Treatment and Nitrogen RemovalSoil and Water Nutrient Dynamics

Quantifying the contribution of nitrification and denitrification to the nitrous oxide flux using 15N tracers.

Mathieu, O., Hénault, C., Lévêque, J., Baujard, E., Milloux, M.-J., Andreux, F.·2006·Environmental Pollution

Abstract

Microbial transformations of nitrification and denitrification are the main sources of nitrous oxide (N2O) from soils. Relative contributions of both processes to N2O emissions were estimated on an agricultural soil using 15N isotope tracers (15NH4+ or 15NO3-), for a 10-day batch experiment. Under unsaturated and saturated conditions, both processes were significantly involved in N2O production. Under unsaturated conditions, 60% of N-N2O came from nitrification, while denitrification contributed around 85-90% under saturated conditions. Estimated nitrification rates were not significantly different whatever the soil moisture content, whereas the proportion of nitrified N emitted as N2O changed from 0.13 to 2.32%. In coherence with previous studies, we interpreted this high value as resulting from the decrease in O2 availability through the increase in soil moisture content. It thus appears that, under limiting aeration conditions, some values for N2O emissions through nitrification could be underestimated.

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Crossref · 10.1016/j.envpol.2006.02.005

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Authors
Mathieu, O., Hénault, C., Lévêque, J., Baujard, E., Milloux, M.-J., & Andreux, F.
Affiliations
Université de Bourgogne (FR)
Corresponding author
Mathieu, O.
Venue
Environmental Pollution
Publisher
Elsevier BV
Published
2006-12
Volume
144
Issue
3
Pages
933-940
ISSN
0269-7491 (ISSN-L)
OpenAlex
W2067244712
Cited by
163
References
44
Citations by year
2026: 5 · 2025: 6 · 2024: 12 · 2023: 10 · 2022: 13 · 2021: 19 · 2020: 12 · 2019: 9 · 2018: 8 · 2017: 6 · 2016: 10 · 2015: 6 · 2014: 7 · 2013: 15 · 2012: 6
FWCI
4.99
Type
journal article
Language
en
Open access
closed
Locations
  • Environmental Pollution (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Funders
Conseil régional de Bourgogne-Franche-Comté
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Physical Sciences › Environmental Science › Pollution › Wastewater Treatment and Nitrogen Removal
  • Physical Sciences › Environmental Science › Environmental Chemistry › Soil and Water Nutrient Dynamics
Keywords
nitrous oxide emissions, nitrification, denitrification, 15N tracer, soil nitrogen cycling, soil moisture, aeration, agricultural soils
MeSH terms
Air Pollutants, Bacteria, Biotransformation, Environmental Monitoring, Fertilizers, Isotope Labeling, Nitrogen Isotopes, Nitrous Oxide, Soil Pollutants, Greenhouse Effect

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