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dc.contributor.author Mubyana-John, T.
dc.contributor.author Wutor, V.C.
dc.contributor.author Yeboah, S.O.
dc.contributor.author Ringrose, S.
dc.date.accessioned 2009-07-07T10:28:30Z
dc.date.available 2009-07-07T10:28:30Z
dc.date.issued 2007
dc.identifier.citation Mubyana-John, T. et al (2007) Fire and its influence on microbial community structure and soil biochemical properties in the Okavango Delta, Botswana, Scientific Research and Essay, vol. 2 (2), pp. 047-054 en_US
dc.identifier.issn 1992-2248
dc.identifier.uri http://hdl.handle.net/10311/349
dc.description.abstract The influence of wild fires on microbial community structure, soil organic matter, sulphur oxidising and nitrifying microbial populations in the floodplains of the Okavango Delta of Botswana was assessed. Microbial community structure was assessed by phospholipids ester-linked fatty acids (PLFA) quantification while microbial sulphur oxidisers were assessed by Most Probable Number (MPN). Community structure assessment showed that burning shifted the microbial community structure from single cellular bacteria being the dominant groups to filamentous fungi and actinomycetes being the most dominant groups. Generally burning increased the fungal component (18:2 w6) matrix from 3.40 to 8.35 while the actinomycetes and sulphur reducing bacterial (10 Me 16:0) component also increased from 1.02 to 1.70 mostly in the floodplains. Generally, the organic matter content declined with burning. However, the influence of burning on soil pH was non conclusive. Soil microbial biomass carbon increased slightly after the fire. The number of heterotrophic and nitrite-oxidizing and sulphur reducing bacteria increased. Overall, these results indicate that burning significantly alters the microbial community structure as large above ground losses of nutrients during and after burning often results in low quantities of nutrients released into the soil. en_US
dc.language.iso en en_US
dc.publisher Academic Journals. http://www.academicjournals.org/SRE en_US
dc.subject Okavango Delta en_US
dc.subject Botswana en_US
dc.subject fire en_US
dc.subject soil microorganisms en_US
dc.subject organic matter en_US
dc.subject PLFA and nitrogen en_US
dc.title Fire and its influence on microbial community structure and soil biochemical properties in the Okavango Delta, Botswana en_US
dc.type Published Article en_US


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