. 2012 Jun 29;7(6):e40059. doi: 10.1371/journal.pone.0040059

Table 3. Effect of metal contamination, pH and soil organic matter on diversity and evenness metrics of total soil communities¹.

α-Diversity Metric²	pH	Organic Matter	As	Cr (total)	Cr (IV)
Chao	**	ns	ns	*	ns
ACE	**	ns	ns	*	*
Shannon	***	ns	ns	*	*
Phylo Diversity	ns	ns	ns	ns	ns

Significance was assessed using a two-tailed t-test (n = 9) and p-values are represented by: * ≤0.05, ** ≤0.01, and *** ≤0.001.

Abbreviations: Abundance-based Coverage Estimator (ACE), Chao’s species richness estimator, Shannon-Weiner Index, Faith’s Phylogenetic Diversity, and ns, not significantly different.

Table 3. Effect of metal contamination, pH and soil organic matter on diversity and evenness metrics of total soil communities1.

Table 3. Effect of metal contamination, pH and soil organic matter on diversity and evenness metrics of total soil communities¹.