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

Atmospheric ammonia concentration modulates soil enzyme and microbial activity in an oak forest affecting soil microbial biomass

María López‐Aizpún, Carlos ARANGO-MORA, Carolina Santamaría, Esther Lasheras, Jesús Miguel Santamaría, Verónica Ciganda, L. M. Cardenas, David Elustondo

Soil Biology and Biochemistry · 2017

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Summary

This field study investigates the mechanistic pathways by which atmospheric ammonia deposition influences soil microbial structure and function in oak forest systems. The authors measured soil enzyme activity and microbial biomass as integrative indicators of soil biological health under varying ammonia exposure. The work suggests that atmospheric nitrogen pollution modulates belowground microbial communities, with potential cascading effects on nutrient cycling and soil function.

UK applicability

Findings are relevant to UK woodland management and air quality impacts on forest soils, particularly given UK exposure to atmospheric ammonia from livestock production and agricultural practices. However, direct applicability may be limited by differences in forest type, climate, and baseline ammonia deposition between Spain and the United Kingdom.

Key measures

Soil enzyme activity (likely hydrolytic and oxidative enzymes), microbial biomass carbon, microbial community composition, atmospheric ammonia concentration

Outcomes reported

The study examined how atmospheric ammonia concentration influences soil enzyme activity, microbial community composition, and microbial biomass in an oak forest ecosystem. Measurements included enzyme assays and microbial biomass quantification in relation to ambient ammonia levels.

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
Spain
System type
Agroforestry
DOI
10.1016/j.soilbio.2017.10.020
Catalogue ID
MGmoqknpn8-lbwkbs

Topic tags

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