ArticleScientific reports2017
Methane Emissions and Microbial Communities as Influenced by Dual Cropping of Azolla along with Early Rice.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 49 citations in OpenAlex.
- Interactions between Cyanobacteria and Methane Processing Microbes Mitigate Methane Emissions from Rice Soils.Microorganisms · 2023Article
- Transfer and transformation characteristics of Zn and Cd in soil-rotation plant (Brassica napus L and Oryza sativa L) system and its influencing factors.Scientific reports · 2023Article
- Management Strategies to Mitigate NLife (Basel, Switzerland) · 2022Review
- Article
- An Exploration of Common Greenhouse Gas Emissions by the Cyanobiont of thePlants (Basel, Switzerland) · 2019Article
- 16S rRNA Gene Amplicon Based Metagenomic Signatures of Rhizobiome Community in Rice Field During Various Growth Stages.Frontiers in microbiology · 2019Article
- Growing Azolla to produce sustainable protein feed: the effect of differing species and COJournal of the science of food and agriculture · 2018Article
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Authors and funding
6 authors at 2 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Azolla caroliniana Willd. is widely used as a green manure accompanying rice, but its ecological importance remains unclear, except for its ability to fix nitrogen in association with cyanobacteria. To investigate the impacts of Azolla cultivation on methane emissions and environmental variables in paddy fields, we performed this study on the plain of Dongting Lake, China, in 2014. The results showed that the dual cropping of Azolla significantly suppressed the methane emissions from paddies, likely due to the increase in redox potential in the root region and dissolved oxygen concentration at the soil-water interface. Furthermore, the floodwater pH decreased in association with Azolla cultivation, which is also a factor significantly correlated with the decrease in methane emissions. An increase in methanotrophic bacteria population (pmoA gene copies) and a reduction in methanogenic archaea (16S rRNA gene copies) were observed in association with Azolla growth. During rice cultivation period, dual cropping of Azolla also intensified increasing trend of 1/Simpson of methanogens and significantly decreased species richness (Chao 1) and species diversity (1/Simpson, 1/D) of methanotrophs. These results clearly demonstrate the suppression of CH
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