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

Biochar affects community composition of nitrous oxide reducers in a field experiment

Hans-Martin Krause, Roman Hüppi, Jens Leifeld, Mohamed El-Hadidi, Johannes Harter, Andreas Kappler, Martin Hartmann, Sebastian Behrens, Paul Mäder, Andreas Gattinger

Soil Biology and Biochemistry · 2018

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Summary

This field study investigates how biochar soil amendment influences the diversity and composition of microbial communities responsible for reducing nitrous oxide to dinitrogen in agricultural soil. By characterising nitrous oxide-reducing populations under biochar treatment, the work contributes to understanding mechanisms by which soil carbon amendments may affect greenhouse gas emissions and soil microbiological function. The findings are relevant to assessing biochar's potential as a climate mitigation tool in farming systems.

UK applicability

Biochar application is an emerging practice in UK farming aimed at carbon sequestration and soil improvement; this work provides mechanistic insight into microbial responses that could inform adoption protocols and emissions accounting in UK arable and mixed systems, though local soil types and climatic conditions may modulate the effects observed.

Key measures

Microbial community composition of nitrous oxide reducers (likely via 16S rRNA or nosZ gene sequencing); soil N₂O flux; soil physico-chemical properties

Outcomes reported

The study examined how biochar application altered the taxonomic and functional composition of soil microbial communities responsible for nitrous oxide (N₂O) reduction. Community structure was characterised using molecular methods, likely in relation to N₂O emissions and soil biogeochemistry.

Theme
Farming systems, soils & land use
Subject
Soil biology & microbiology
Study type
Research
Study design
Field trial
Source type
Peer-reviewed study
Status
Published
Geography
Switzerland
System type
Mixed farming
DOI
10.1016/j.soilbio.2018.01.018
Catalogue ID
BFmovi21by-bimce6

Topic tags

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