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-based study examined whether sowing multi-species plant mixtures into intensively managed grassland swards reduces nitrous oxide emissions compared to conventional single-species pastures. Published research suggests that increased botanical diversity in grassland can mitigate one of agriculture's significant greenhouse gas pathways, with implications for climate-smart pastoral management in temperate regions.

UK applicability

Findings are directly applicable to UK grassland management, particularly for intensive dairy and beef production systems which dominate pastoral agriculture. The research informs on-farm mitigation strategies aligned with UK climate commitments and environmental stewardship schemes.

Key measures

N2O emission rates; soil nitrogen cycling; grassland botanical composition; sward management under intensive grazing or cutting regimes

Outcomes reported

The study measured nitrous oxide (N2O) emissions from grassland swards managed under intensive conditions, comparing single-species and multi-species plant mixtures. It assessed the effect of plant diversity on greenhouse gas emissions and related soil processes.

Theme
Climate & resilience
Subject
Climate & greenhouse gas mitigation
Study type
Research
Study design
Field trial
Source type
Peer-reviewed study
Status
Published
Geography
Ireland
System type
Pasture-based livestock
DOI
10.1016/j.scitotenv.2021.148163
Catalogue ID
BFmou2m2lh-at2bgz

Topic tags

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