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

Beneficial effects of multi-species mixtures on N2O emissions from intensively managed grassland swards

Saoirse Cummins, John A. Finn, Karl G. Richards, Gary Lanigan, Guylain Grange, Caroline Brophy, L. M. Cardenas, T. H. Misselbrook, C.K. Reynolds, Dominika Król

The Science of The Total Environment · 2021

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Summary

This field study examines whether sowing multi-species grassland mixtures reduces nitrous oxide emissions compared to monoculture swards under intensive pasture management. The authors measured N2O fluxes across different sward types to establish relationships between botanical diversity and this potent greenhouse gas. The work provides evidence on potential mitigation strategies for reducing agricultural greenhouse gas emissions from high-input grassland systems whilst maintaining livestock productivity.

UK applicability

The study's findings are directly applicable to UK grassland management, as the research was conducted under UK conditions and addresses the climate impact of the nation's dominant grassland production system. The results may inform UK agricultural policy and farm-level decisions regarding pasture composition and intensification strategies.

Key measures

N2O flux emissions (likely in mg N2O-N m⁻² h⁻¹ or similar units); botanical composition of sward; management intensity parameters

Outcomes reported

The study measured nitrous oxide (N2O) flux emissions from intensively managed grassland swards comparing multi-species botanical mixtures to monoculture swards. The research quantified how botanical diversity influences N2O emissions under high-input grassland management systems.

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.2021.148163
Catalogue ID
BFmobghqjf-ug6v96

Topic tags

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