Soil microbial populations after wildfire

Population fluctuations were increased by burning, which also modified the incubation patterns and the densities of several microbial groups, although without changing the order of their population sizes. In the short term, fire produced a sharp increase in microbes but affected the groups studied d...

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Bibliographic Details
Published in:FEMS microbiology ecology 1993-12, Vol.13 (2), p.93-103
Main Authors: Vázquez, Francisco J., Acea, María J., Carballas, Tarsy
Format: Article
Language:English
Subjects:
Algae
Animal, plant and microbial ecology
Bacteria
Biological and medical sciences
Burning
Cyanobacteria
Forest ecosystem
FOREST FIRES
FOREST SOILS
Fundamental and applied biological sciences. Psychology
Fungi
INCENDIE DE FORET
INCENDIOS FORESTALES
Microbial ecology
MICROORGANISME
MICROORGANISMOS
MICROORGANISMS
Soil
SOL DE FORET
SUELO FORESTAL
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Summary:Population fluctuations were increased by burning, which also modified the incubation patterns and the densities of several microbial groups, although without changing the order of their population sizes. In the short term, fire produced a sharp increase in microbes but affected the groups studied differently. Aerobic heterotrophic bacteria, including the acidophilic and sporulating ones, were stimulated by fire while cyanobacteria, algae and fungi (propagules as well as hyphae length) were clearly depressed. In the long term, the positive effect of fire on bacteria was nullified except on the sporulating ones; fungal propagules, but not mycelium, reached the unburned soil values, cyanobacteria and algae also increased. Soil incubation both improved the beneficial and diminished the negative fire effect on the microbiota.
ISSN:0168-6496
1574-6941
DOI:10.1016/0168-6496(93)90027-5