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 evaluated the potential for increasing plant species diversity in intensively managed grassland swards to mitigate nitrous oxide emissions, a potent greenhouse gas associated with livestock production. As suggested by the research design and authorship, the work examined whether multi-species grassland mixtures could reduce N₂O flux without compromising agronomic productivity. The findings indicate that botanical diversity may offer a practical agronomic pathway to lower emissions intensity in conventional grassland management systems used in livestock farming.

UK applicability

This work is highly applicable to United Kingdom grassland and livestock systems, given the shared intensity of dairy and beef production on managed swards and comparable soil and climate conditions. The findings could inform grassland management recommendations and agri-environment schemes targeting emissions reduction in UK pastoral farming.

Key measures

Nitrous oxide (N₂O) emissions flux; plant species richness and composition; grassland productivity; soil and management variables in intensive grazing systems

Outcomes reported

The study measured nitrous oxide emissions from intensively managed grassland swards varying in plant species composition. The research assessed whether multi-species mixtures could reduce N₂O flux whilst maintaining or sustaining productivity in livestock grazing systems.

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
BFmoc27pk5-svdneg

Topic tags

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