Pulse Brain · Growing Health Evidence Index
Tier 1 — Meta-analysis / systematic reviewPeer-reviewed

Unlocking soil health: Are microbial functional genes effective indicators?

Jiyu Jia; R.G.M. de Goede; Yizan Li; Jiangzhou Zhang; Jiangzhou Zhang; Guangzhou Wang; Junling Zhang; Junling Zhang; Rachel Creamer

Soil Biology and Biochemistry · 2025

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Summary

This paper critically examines the utility of microbial functional genes — sequences encoding specific metabolic or ecological functions — as practical indicators of soil health, a question of growing relevance as metagenomic tools become more accessible. Published in Soil Biology and Biochemistry in 2025, the study likely synthesises evidence across multiple land-use types and management regimes to assess whether functional gene profiles consistently reflect soil condition. The findings are expected to offer guidance on whether incorporating functional gene data meaningfully improves soil health assessments beyond traditional physicochemical and biological measures.

UK applicability

Although the geographic scope appears international, the findings are highly applicable to UK soil health monitoring and policy, particularly given ongoing development of soil health metrics under the Sustainable Farming Incentive and the UK's post-Brexit agricultural transition. Functional gene indicators could complement or strengthen existing soil assessment frameworks used by Natural England and Defra.

Key measures

Microbial functional gene abundance and diversity; soil health indicator performance; sensitivity and specificity of gene-based metrics relative to conventional soil health measures

Outcomes reported

The study evaluates whether microbial functional genes serve as reliable and sensitive indicators of soil health, likely assessing their responsiveness to land management practices and their relationship with soil physical, chemical, and biological properties. It probably compares functional gene metrics against conventional soil health indicators to determine their added diagnostic value.

Theme
Farming systems, soils & land use
Subject
Soil microbiology & biological indicators
Study type
Systematic Review
Study design
Systematic review
Source type
Peer-reviewed study
Status
Published
Geography
International
System type
Arable cereals
DOI
10.1016/j.soilbio.2025.109768
Catalogue ID
NRmo3f02hq-01k

Topic tags

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