Long-term prescribed burning does not affect the abundance of denitrifier communities in a wet sclerophyll forest of Australia
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A 35 year old repeated prescribed burning trial, with three treatments (no burning as control, 2 yearly burning and 4 yearly burning), was selected to explore how prescribed burning affects the N2O flux, key soil properties (inorganic N, dissolved organic C and N, pH), N-associated functional gene abundance and their interactions. Overall, our results indicate that biennial burning reduced the microbial biomass significantly but did not change the abundance of genes of denitrifying communities, whereas quadrennial burning did not affect either biomass or gene abundance, which reflected the resilience of microbial community.
Proceedings of the 5th Joint Australian and New Zealand Soil Science Conference