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

Erosion reduces soil microbial diversity, network complexity and multifunctionality

Liping Qiu, Qian Zhang, Hansong Zhu, Peter B. Reich, Samiran Banerjee, Marcel G. A. van der Heijden, Michael J. Sadowsky, Satoshi Ishii, Xiaoxu Jia, Mingan Shao, Baoyuan Liu, Huan Jiao, Haiqiang Li, Xiaorong Wei

The ISME Journal · 2021

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Summary

This field-based study quantifies the impact of soil erosion on soil microbial communities and ecosystem functions across two sites with contrasting soil texture and climate. Eroded plots exhibited significantly lower microbial diversity, reduced network complexity, and decreased multifunctionality compared to non-eroded plots, alongside shifts in bacterial community composition characterised by loss of dominant phyla and selective enrichment of nitrogen-cycling bacterial families. The findings establish soil erosion as a driver of microbial community degradation and functional impairment, with implications for understanding soil ecosystem service loss and restoration priorities.

UK applicability

The study's findings are relevant to UK agricultural and land management contexts where soil erosion is an ongoing concern, particularly in intensive arable regions and areas with high rainfall and sloping topography. However, the two study sites' specific soil textures and climatic conditions would need evaluation against UK soil and climate zones to assess direct applicability of quantitative findings to particular UK farming systems.

Key measures

Microbial network complexity; microbial taxon richness; microbial community composition (relative abundance of phyla including Proteobacteria, Bacteroidetes, Gemmatimonadetes, Acetobacteraceae, Beijerinckiaceae); soil multifunctionality; microbial associations

Outcomes reported

The study measured changes in soil microbial community composition, microbial network complexity, and multiple soil functions in eroded versus non-eroded plots at two geographically contrasting sites. Erosion reduced microbial diversity, network complexity, and associations among microbial taxa, with shifts in dominant bacterial phyla and changes in soil multifunctionality.

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
International
System type
Laboratory / in vitro
DOI
10.1038/s41396-021-00913-1
Catalogue ID
BFmou2mhmp-16qruv

Topic tags

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