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

Spatial patterns of causality in temperate silvopastoral systems: a perspective on nitrification stability in response to flooding

Romane Mettauer, Mathieu Emily, Zita Bednar-Konski, Anaïs Widmer, Olivier Godinot, Lukas Beule, Edith Le Cadre

Ecological Processes · 2024

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Summary

This study examined how silvopastoral agroforestry systems respond to flooding stress by assessing nitrification stability across tree rows and grass alleys in hedgerow and alley-cropping configurations. Using multigroup structural equation modelling, the authors identified spatial variation in causal mechanisms: tree rows showed greater nitrification resistance, whilst grass alleys maintained higher nitrification potential under flooding. The findings suggest that system design and position relative to trees significantly influence nitrogen cycle stability during extreme rainfall events.

Regional applicability

The study's focus on temperate silvopastoral systems is directly applicable to United Kingdom agroforestry practice, particularly given projected increases in extreme rainfall frequency under climate change. The findings support the potential role of silvopastures in enhancing nitrogen cycle resilience on UK farms, though local soil and hydrology conditions would require site-specific validation.

Key measures

Nitrification potential under flooded and non-flooded conditions; soil physical properties; soil resources availability; resistance and resilience metrics

Outcomes reported

The study measured nitrification resistance and resilience in two silvopastoral systems (hedgerows and alley cropping) following four weeks of flooding stress and four weeks of recovery. It identified spatial causal relations between soil properties and nitrification stability using multigroup latent structural equation modelling.

Theme
Climate & resilience
Subject
Soil biology & microbiology
Study type
Research
Study design
Field trial with laboratory analysis and structural equation modelling
Source type
Peer-reviewed study
Status
Published
Geography
Europe
System type
Agroforestry
DOI
10.1186/s13717-024-00538-0
Catalogue ID
SNmonuu63h-27ir8s

Topic tags

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