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

Nutrient enrichment mitigates estuarine wetland CO2 emissions by reducing fungal stability and temperature sensitivity

Chunmei Wu, Lin Wang, Jiayi Li, Ning Hou, Yuan Li, Weiqi Wang, Jordi Sardans

Environmental Research · 2026

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Summary

This 2026 field study investigates how nutrient enrichment modifies estuarine wetland CO₂ emissions by altering fungal community structure and reducing the temperature sensitivity of soil respiration. As suggested by the title, nutrient additions appear to shift fungal assemblages in ways that stabilise microbial function and dampen the accelerating effect of temperature on carbon loss. The findings suggest a potential mechanism by which nutrient status influences greenhouse gas dynamics in coastal wetland ecosystems.

UK applicability

Salt marshes and estuarine wetlands occur around the UK coast and are subject to eutrophication pressures; however, the study's specific soil conditions and climate may limit direct transferability. UK wetland managers may find the fungal-mediated mechanisms relevant to understanding how nutrient loading affects carbon cycling, though local validation would be warranted.

Key measures

CO₂ emissions rates, fungal community composition and stability, temperature sensitivity of respiration, soil nutrient concentrations

Outcomes reported

The study examined how nutrient enrichment alters fungal community stability and temperature sensitivity of CO₂ emissions in estuarine wetland soils. Changes in fungal composition and their relationship to greenhouse gas release were measured.

Theme
Climate & resilience
Subject
Soil biology & microbiology
Study type
Research
Study design
Field trial
Source type
Peer-reviewed study
Status
Published
Geography
China
System type
Other
DOI
10.1016/j.envres.2026.124405
Catalogue ID
SNmoqqsm94-8qza7g

Topic tags

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