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Fig. 1. Principle component analysis (PCA) of microbial data: (1A) PCA clustering of pretreatments based on integrative measures of microbial biomass and activity that included total fatty acid methyl ester (FAME) and total DNA yield, microbial biomass C, respiration, and enzyme activities; (1B) PCA clustering of pretreatments based on individual FAME concentrations (D/R pretreatment: air drying followed by rewetting and 14-d incubation).
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