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

Soil organic matter stoichiometry as indicator for peatland degradation

Jens Leifeld, Kristy Klein, Chloé Wüst‐Galley

Scientific Reports · 2020

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Summary

This study examined how peatland soil stoichiometry varies with land use intensity and organic matter content across Swiss sites, using measurements from 1310 samples. Soil OM content and C/N ratio proved most sensitive to land use conversion, with cropland showing the lowest OM content and highest nitrogen mobilisation rates, suggesting progressed soil degradation in agricultural contexts. The findings suggest that stoichiometric indicators may serve as practical proxies for assessing peatland degradation state.

UK applicability

The UK contains extensive peatlands, particularly in Scotland, Wales, and northern England, with similar drainage histories for agriculture and forestry. These stoichiometric indicators may be applicable for monitoring UK peatland condition and informing restoration prioritisation, though regional peat composition and climate differences should be considered.

Key measures

Soil organic matter content; organic carbon and nitrogen concentrations; H/C, O/C, and C/N ratios; organic matter oxidation states; nitrogen fate during peat decomposition

Outcomes reported

The study measured soil organic matter (OM) content, carbon, nitrogen, hydrogen, and oxygen stoichiometry across 1310 soil samples from 48 Swiss sites under four land use types (cropland, grassland, forest, natural peatland). It identified OM content and C/N ratio as the most sensitive indicators of peatland degradation and documented differential nitrogen mobilisation rates between land use types.

Theme
Farming systems, soils & land use
Subject
Soil carbon & organic matter
Study type
Research
Study design
Observational cross-sectional survey
Source type
Peer-reviewed study
Status
Published
Geography
Switzerland
System type
Mixed farming
DOI
10.1038/s41598-020-64275-y
Catalogue ID
BFmovi21by-fwug3u

Topic tags

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