cor	pH	OM	TN	NO3	NH4
pH	1	0.764124802	0.069331823	-0.5473771	0.479551105
OM	0.764124802	1	-0.498710581	-0.909469736	0.90704531
TN	0.069331823	-0.498710581	1	0.557329022	-0.628039343
NO3	-0.5473771	-0.909469736	0.557329022	1	-0.977679213
NH4	0.479551105	0.90704531	-0.628039343	0.55	1