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June 5, 2026BiologyOpen Access

Responses of Methane Emissions to Different Soil Amendments in Paddy Soil: Soil Properties, Microbial Communities, and Functional Genes

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Authors

QWQiong WuGuangdong University of TechnologyDDDalu DengGuangdong University of TechnologyYZYuwen ZhangGuangdong University of Technology

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Implication

Randomized trial evaluates effects of soil amendments on methane emissions in paddy soil, suggesting ways to mitigate greenhouse gases.

Key Points

  • This research aims to evaluate how different soil amendments affect methane emissions from paddy soils.
  • Conducted an anaerobic microcosm experiment with various amendments: microbial inoculants, biochar, humic acid, and montmorillonite.
  • Analyzed changes in soil properties such as pH, electrical conductivity, and acetate concentration, along with microbial community structure.
  • Investigated functional genes related to methane cycling, specifically mcrA and pmoA.
  • Microbial inoculants significantly affected methane emissions; Chabeijian increased emissions by 100.8%, while Duojun-360 reduced them by 57.1%.
  • Chabeijian's effect was linked to greater acetate turnover and an increase in key methanogenic taxa, while Duojun-360 decreased mcrA abundance by 26.9%.
  • Both inoculants increased methanotroph abundance but methane production remained the primary factor influencing net methane emissions.

Cite This Study

Wu et al. (2026) studied this question.

synapsesocial.com/papers/6a2268f9763171746d5477b5https://doi.org/10.3390/biology15110883
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