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

A 40 % paddy surface soil organic carbon increase after 5-year no-tillage is linked with shifts in soil bacterial composition and functions

Jianying Qi, Xiangbin Yao, Jian Lu, Longxin He, Junli Cao, Zheng‐Rong Kan, Xing Wang, Shenggang Pan, Xiangru Tang

The Science of The Total Environment · 2022

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Summary

This field trial documents a substantial 40% increase in paddy surface soil organic carbon following five years of no-tillage practice, with associated shifts in soil bacterial composition and metabolic functions. The study suggests that conservation tillage alters the soil microbial ecosystem in ways that support organic matter accumulation in rice systems. The findings contribute to understanding of how tillage abandonment affects both soil carbon sequestration and the microbial processes underpinning soil health in paddy agriculture.

UK applicability

Whilst the study focuses on paddy rice systems typical of East Asian agriculture, the underlying principles linking no-tillage to SOC accumulation and bacterial community shifts may have relevance to UK arable systems, particularly for carbon sequestration policy. However, direct application requires consideration of different soil types, climate, and crop rotations in the UK context.

Key measures

Soil organic carbon concentration and percentage increase; soil bacterial taxonomy and functional gene abundance; microbial community structure analysis

Outcomes reported

The study measured changes in soil organic carbon (SOC) content and bacterial community composition and function in paddy rice fields after 5 years of no-tillage management compared to conventional tilled systems.

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
Arable cereals
DOI
10.1016/j.scitotenv.2022.160206
Catalogue ID
SNmok3j00y-z09673

Topic tags

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