Biogeosciences
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Articles | Volume 17, issue 6
Articles | Volume 17, issue 6
https://doi.org/10.5194/bg-17-1451-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-17-1451-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 6
Research article
 | 
23 Mar 2020
Research article |  | 23 Mar 2020

The pH-based ecological coherence of active canonical methanotrophs in paddy soils

Jun Zhao, Yuanfeng Cai, and Zhongjun Jia

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Short summary
We show that soil pH is a key factor in selecting distinct phylotypes of methanotrophs in paddy soils. Type II methanotrophs dominated the methane oxidation in low-pH soils, while type I methanotrophs were more active in high-pH soils. This pH-based niche differentiation of active methanotrophs appeared to be independent of nitrogen fertilization, but the inhibition of type II methanotrophic rate in low-pH soils by the fertilization might aggravate the emission of methane from paddy soils.
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