NDLI: Wetland rice soils as sources and sinks of methane: a review and prospects for research

Content Provider	Springer Nature Link
Author	Kumaraswamy, S. Kumar Rath, Arun Ramakrishnan, B. Sethunathan, N.
Copyright Year	2000
Abstract	Rice paddies are an important human-made ecosystem for the global CH4 budget. CH4, which is produced in the predominantly anaerobic bulk soil layers, is oxidized significantly before it reaches the atmosphere. Roots of rice, in addition to supporting the consumption of CH4, contribute to the total CH4 production in the soil. The various controls of CH4 emission from this ecosystem depend on the structure of plant and microbial communities and their interactions. Availability of organic substrates, electron acceptors and other soil- and plant-related factors influence the activities of microbial communities. Agronomic practices including fertilization and application of pesticides have effects on CH4 emission. Recent studies using molecular retrieval approaches with small subunit rRNA-encoding gene (rDNA) sequences and functional genes, showed the richness of diversity of the microbial community in rice paddy soils, which includes members of the Archaea and methanotrophs. There is need for further research to know the consequences, at the ecosystem level, of changes in microbial diversity and microbial communities in paddy soils. This will aid in understanding the mechanisms involved in the mitigating effects of certain agricultural practices.
Starting Page	449
Ending Page	461
Page Count	13
File Format	PDF
ISSN	01782762
Journal	Biology and Fertility of Soils
Volume Number	31
Issue Number	6
e-ISSN	14320789
Language	English
Publisher	Springer-Verlag
Publisher Date	2000-09-05
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Agronomy and Crop Science Soil Science Microbiology

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