Journal
SOIL BIOLOGY & BIOCHEMISTRY
Volume 40, Issue 11, Pages 2904-2907Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.soilbio.2008.07.020
Keywords
Catabolic response profiles; Fatty acid methyl ester (FAME) analysis; Microbial biomass; Microbial community structure; Soil warming
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Funding
- National Science Foundation
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We examined the effect of chronic soil warming on microbial biomass, functional capacity, and community structure in soil samples collected from the Soil Warming Study located at the Harvard Forest Long-term Ecological Research (LTER) site. Twelve years of chronic soil warming at 5 degrees C above the ambient temperature resulted in a significant reduction in microbial biomass and the utilization of a suite of C substrates which included amino acids, carbohydrates, and carboxylic acids. Heating significantly reduced the abundance of fungal biomarkers. There was also a shift in the mineral soil microbial community towards gram positive bacteria and actinomycetes. (c) 2008 Elsevier Ltd. All rights reserved.
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