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

Converting paddy fields to areca nut plantations aggravate soil microbial N limitation through decreasing inorganic nitrogen production and immobilization in the tropics

Lijun Liu, Juan Liu, Xiaoqian Dan, Huanyu Bao, Qilin Zhu, Lei Meng, Tongbin Zhu, Ahmed S. Elrys, Jinbo Zhang, Christoph Müller

Plant and Soil · 2026

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Summary

This field-based study investigates how conversion of traditional flooded paddy rice systems to areca nut monoculture in tropical regions alters soil microbial nitrogen cycling. The research indicates that this land use change exacerbates microbial nitrogen limitation through concurrent reductions in both inorganic nitrogen production and immobilisation capacity, as suggested by shifts in microbial community function. The findings imply potential long-term consequences for soil fertility sustainability and plantation productivity under this conversion scenario.

UK applicability

Direct applicability to UK agriculture is limited, as areca nut cultivation is confined to tropical and subtropical climates. However, the mechanistic insights into how land use intensification and monoculture adoption affect soil microbial function and nutrient cycling may inform UK policy discussions on sustainable intensification and soil health in arable and horticultural systems.

Key measures

Soil microbial community composition and function; inorganic nitrogen production rates; nitrogen immobilisation capacity; microbial nitrogen limitation indices

Outcomes reported

The study measured changes in soil microbial nitrogen cycling processes, including inorganic nitrogen production and immobilisation capacity, following conversion of flooded paddy rice systems to areca nut monoculture in tropical regions.

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
China
System type
Agroforestry
DOI
10.1007/s11104-026-08445-3
Catalogue ID
SNmov0fb79-5ubs5s

Topic tags

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