Table 3.

Pairwise comparisons of species compositions of rDNA libraries from triplicate unimproved and improved grassland soil samples

Soil samplesLibrarySimilarity coefficienta
Libraries from unimproved grasslandLibraries from improved grassland
SAF1SAF2SAF3SL1SL2
UnimprovedSAF1
SAF20
SAF30.0750.049
ImprovedSL10.0250.0250
SL20.1320.0260.1250
SL30.0510.0510.0730.1230.026
• a The similarity coefficient (S) was determined as follows: S = 2 C/(A +B), where A and B are the numbers of OTUs in libraries A and B, respectively, and C is the number of shared OTUs.