Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

The contribution of cattle urine and dung to nitrous oxide emissions: Quantification of country specific emission factors and implications for national inventories

David R. Chadwick, L. M. Cardenas, M.S. Dhanoa, N. Donovan, T. H. Misselbrook, J. R. Williams, R. E. Thorman, Karen McGeough, Catherine J. Watson, M.J. Bell, S.G. Anthony, Robert M. Rees

The Science of The Total Environment · 2018

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Summary

This empirical field study isolated the separate contributions of cattle urine and dung to N₂O emissions under UK grazing conditions, addressing a significant data gap in country-specific emission factors. By measuring N₂O fluxes across multiple sites and timing conditions, the authors provide an evidence base for refining UK national agricultural greenhouse gas inventories and improving the accuracy of livestock production's climate impact quantification. The findings support more precise emissions accounting and inform targeted mitigation strategies for pastoral farming systems.

UK applicability

The study was conducted under UK environmental and management conditions, making the derived emission factors directly applicable to UK national greenhouse gas inventory calculations and policy frameworks for agricultural emissions reporting. The country-specific data addresses limitations of using generic international emission factors and supports more accurate representation of UK pastoral farming's climate footprint.

Key measures

N₂O flux rates (mg N₂O-N m⁻² h⁻¹) from urine and dung patches; emission factors (kg N₂O-N per kg N excreted); temporal variation in emissions across seasons and soil conditions

Outcomes reported

The study quantified nitrous oxide (N₂O) emission factors separately for cattle urine and dung under UK grazing conditions across multiple sites and seasons. The research generated country-specific emission factor data to improve the accuracy of UK national agricultural greenhouse gas inventories.

Theme
Climate & resilience
Subject
Climate & greenhouse gas mitigation
Study type
Research
Study design
Field trial
Source type
Peer-reviewed study
Status
Published
Geography
United Kingdom
System type
Pasture-based livestock
DOI
10.1016/j.scitotenv.2018.04.152
Catalogue ID
BFmobghqj6-s2pxsc

Topic tags

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