Table 4.

Pearson’s product moment correlations between measures of microbial activity/pH and potential explanatory variables.

Dependent variable	Independent variable	Test statistic	r	Consistent with hypothesis
Basal CO2 mg	pH	t7 = 2.9, p < 0.05	0.74	Yes
	Archaea Shannon	t7 = 2.0, p < 0.1	0.6	Yes
	NMDS enzyme	t7 = 2.2, p < 0.1	0.65	Yes
	β-1-4-glucosidase	t7 = 3.9, p < 0.05	0.83	Yes
	Cellobiohydrolase	t7 = 3.4, p < 0.05	0.79	Yes
	β-N-acetyl-glucosaminidase	t7 = 4.3, p < 0.05	0.85	Yes
	Peroxidiase	t7 = 3.1, p < 0.05	0.76	Yes
	Phenol oxidase	t7 = 2.5, p < 0.05	0.69	Yes
	Sulfatase	t7 = 5.3, p < 0.001	0.9	Yes
	B-xylosidase	t7 = 4.1, p < 0.01	0.84	Yes
NMDS initial EEA	NMDS bacteria	t7 = 2.2, p < 0.01	−0.64	Yes
NMDS oxic SIR	MB-C	t7 = 2.4, p < 0.05	−0.68	Yes
	MB-N	t7 = 2.2, p < 0.01	−0.65	Yes
	NMDS archaea	t7 = 2.2, p < 0.01	−0.63	Yes
NMDS anoxic SIR	pH	t7 = 5.7, p < 0.001	−0.91	Yes
	β-1-4-glucosidase	t7 = 1.9, p < 0.1	−0.59	Yes
	Cellobiohydrolase	t7 = 2.5, p < 0.05	−0.68	Yes
	β-N-acetyl-glucosaminidase	t7 = 2.5, p < 0.05	−0.67	Yes
	Peroxidase	t7 = 2.9, p < 0.05	−0.73	Yes
	Sulfatase	t7 = 1.9, p < 0.1	−0.58	Yes
pH	Archaea Shannon	t7 = 2.5, p < 0.05	0.68	Yes
	NMDS Archaea	t7 = 2.2, p < 0.01	−0.63	Yes
	β-1-4-glucosidase	t7 = 3.4, p < 0.05	0.79	Yes
	Cellobiohydrolase	t7 = 4.2, p < 0.01	0.85	Yes
	β-N-acetyl-glucosaminidase	t7 = 3.6, p < 0.01	0.8	Yes
	Peroxidase	t7 = 6.5, p < 0.001	0.93	Yes
	Sulfatase	t7 = 2.9, p < 0.05	0.73	Yes
	Xylase	t7 = 2.1, p < 0.01	0.63	Yes

NMDS represents the first axis from the respective NMDS plot.