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

A global meta-analysis of the impacts of exotic plant species invasion on plant diversity and soil properties

Hongwei Xu, Qiang Liu, Shaoyong Wang, Guisen Yang, Sha Xue

The Science of The Total Environment · 2021

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Summary

This global meta-analysis synthesises peer-reviewed evidence on the ecological and edaphic consequences of exotic plant invasions. The authors quantified impacts on native plant diversity and soil characteristics across multiple ecosystems and geographic regions, as suggested by the large sample of studies synthesised. Findings likely highlight significant negative effects on plant community composition and soil functioning in invaded ecosystems.

UK applicability

Results are relevant to UK environmental management, particularly for understanding risks posed by invasive species (e.g. Rhododendron ponticum, Japanese knotweed) to native biodiversity and soil health in semi-natural habitats and arable margins. Findings could inform invasive species policy and habitat restoration priorities.

Key measures

Effect sizes on plant species richness, abundance, and composition; soil properties (fertility, carbon, structure, microbial activity); heterogeneity by biome, invasion stage, and invasive species type

Outcomes reported

The study synthesised quantitative evidence on how exotic plant invasions affect native plant diversity and soil properties across global ecosystems. It measured the magnitude and direction of invasion impacts through meta-analytic aggregation of published studies.

Theme
Farming systems, soils & land use
Subject
Soil biology & microbiology
Study type
Meta-analysis
Study design
Meta-analysis
Source type
Peer-reviewed study
Status
Published
Geography
Global
System type
Other
DOI
10.1016/j.scitotenv.2021.152286
Catalogue ID
SNmok3izqh-vnj1e4

Topic tags

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