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

Elucidating three-way interactions between soil, pasture and animals that regulate nitrous oxide emissions from temperate grazing systems

Graham A. McAuliffe, María López‐Aizpún, M. S. A. Blackwell, Antonio Castellano‐Hinojosa, Tegan Darch, Jessica Evans, Claire Horrocks, Kate Le Cocq, Taro Takahashi, Paul Harris, Michael R. F. Lee, L. M. Cardenas

Agriculture Ecosystems & Environment · 2020

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Summary

This field study at the North Wyke Farm Platform examined mechanistic interactions between soil, pasture, and grazing animals in regulating N₂O emissions from temperate grasslands. By using live grazing rather than applied excreta treatments, the research captures realistic variation in herbage intake and excreta composition that influences downstream soil nitrogen cycling and microbial processes. The findings provide empirically grounded evidence for N₂O mitigation strategies in pastoral systems based on soil-plant-animal interactions.

UK applicability

The study was conducted at a UK research facility and directly reflects temperate UK grazing conditions, making the findings highly applicable to UK pastoral farming policy and practice. The mechanistic understanding of how sward management and animal type influence N₂O emissions offers practical guidance for reducing greenhouse gas intensity in UK livestock systems.

Key measures

N₂O gas flux measurements; soil properties; pasture sward type; animal excreta composition; soil microbial activity

Outcomes reported

The study measured nitrous oxide (N₂O) flux rates under three contrasting pasture management strategies with live grazing animals, and examined how interactions between soil properties, sward composition, and animal excreta characteristics regulate N₂O emissions.

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.agee.2020.106978
Catalogue ID
BFmobghqjf-1innr2

Topic tags

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