Interactions among Prescribed Fire, Soil Attributes, and Mycorrhizal Community Structure at Crater Lake National Park, Oregon, USA

Fire Ecology

Table 2 Bonferroni-adjusted Pearson’s correlations between habitat attributes. Estimates are above P value. A negative sign preceding the estimate indicates an inverse correlation; P values significant at α ≤ 0.05 are bolded.

	Mineral soil bulk density	Total C %	δ¹³C depletion	Total N %	δ¹⁵N enrichment	C:N ratio	Coarse woody debris mass	Fine woody debris mass	Litter mass	Mineral soil pH	Collections
Total C %	−0.5926
Total C %	0.7833
δ¹³C depletion	0.6000	−0.1487
δ¹³C depletion	0.0019	0.4881
Total N %	0.3552	0.5702	−0.4222
Total N %	0.0892	0.0030	0.0378
δ¹⁵N enrichment	−0.1918	0.0469	−0.0495	−0.1794
δ¹⁵N enrichment	0.3693	0.8277	0.8183	0.3970
C:N ratio	−0.5008	−0.0756	−0.6379	−0.6954	0.1736
C:N ratio	0.0065	0.8699	0.0004	0.0001	0.2016
CWD mass	−0.2772	0.5580	−0.3842	0.1304	0.1491	0.4811
CWD mass	0.2134	0.0059	0.0702	0.6629	0.4949	0.0154
FWD mass	−0.1979	0.3883	−0.0890	0.2560	0.1117	0.2022	0.7458
FWD mass	0.3539	0.0608	0.6789	0.3529	0.6033	0.1324	0.0001
Litter mass	−0.2813	0.5716	−0.2798	0.2947	0.0604	0.2771	0.8911	0.8928
Litter mass	0.1830	0.0035	0.1855	0.2345	0.7792	0.1024	0.0001	0.0001
Mineral soil pH	0.1772	−0.2076	−0.0673	0.0745	−0.2037	−0.3766	−0.4623	−0.5109	−0.4762
Mineral soil pH	0.4874	0.3025	0.7784	0.8700	0.3191	0.1105	0.0147	0.0115	0.0154
Collections	−0.5979	0.1333	−0.4795	−0.3219	0.1366	0.5962	0.2336	0.1167	0.1943	−0.2776
Collections	0.0070	0.5558	−0.0618	−0.1117	0.3573	0.0047	0.2412	0.6428	0.4014	−0.2401
Number of fungal species	−0.5861	0.0950	−0.4737	−0.3222	0.1009	0.5818	0.2293	0.1223	0.1989	−0.2535	0.9963
Number of fungal species	0.0098	0.7940	0.0744	0.1126	0.4571	0.0072	0.2677	0.6577	0.4174	0.2975	0.0098