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- Title
Methane formation in soil-plant systems treating wastewater as influenced by microbial populations.
- Authors
Wang, Yan-hua; Ye, Chun; Yang, Hao; Zhang, Ji-xiang; Huang, Chang-chun; Xie, Biao
- Abstract
The present study evaluated the effect of plant species on methane (CH) emission and microbial populations in three types of soil-plant systems. Results showed large variation of CH flux rate ranging from 1.35 to 212.61 mg CH m h. Emission peak of CH occurred in July. No significant difference was found in the non-vegetation system spanning 2 years. Compared with non-vegetation, vegetation systems had much higher flux of CH, and obvious seasonal variation was observed. The polyculture system planted with Zizania latifolia ( Z. latifolia) and Phragmites australis ( P. australis) released higher CH fluxes than the mono system ( P. australis), reflecting that Z. latifolia growth could simulate CH emission. The fluorescence in situ hybridization (FISH) results support the characteristics of CH fluxes. Much higher methanotrophs amount and lower methanogens amount from the mono system than those from the polyculture system was observed indicating that Z. latifolia growth may limit the oxygen transportation resulting in higher CH emission. The polyculture system has the highest potential of CH emission.
- Subjects
METHANE; PLANT species; WASTEWATER treatment; MICROBIAL ecology; MICROORGANISM populations; POLY-aquaculture
- Publication
Environmental Earth Sciences, 2013, Vol 70, Issue 4, p1647
- ISSN
1866-6280
- Publication type
Article
- DOI
10.1007/s12665-013-2251-0