	Ca²⁺	K⁺	Mg²⁺	Na⁺	DOC	${NO}_{3}^{-}$	${NH}_{4}^{+}$	TN	TP	PP	DIP
Ca²⁺	1	0.413	0.722**	0.782**	0.446	0.159	0.397	0.476	0.510	0.434	0.617*
K⁺	0.726*	1	0.386	0.544	0.217	−0.042	−0.007	0.119	−0.107	−0.150	−0.061
Mg²⁺	0.365	0.102	1	0.659*	0.239	0.690**	0.598*	0.759**	0.650*	0.628*	0.732**
Na⁺	0.572	0.078	0.004	1	0.533	0.346	0.403	0.657*	0.441	0.369	0.572*
DOC	0.576	0.215	0.650*	0.485	1	0.033	0.370	0.439	0.362	0.314	0.299
${NO}_{3}^{-}$	−0.381	−0.253	0.202	−0.091	−0.154	1	0.474	0.707**	0.480	0.519	0.562*
${NH}_{4}^{+}$	0.096	0.023	0.706*	−0.019	0.499	0.648*	1	0.860**	0.952**	0.926**	0.906**
TN	0.253	0.134	0.750**	0.082	0.619*	0.549	0.967**	1	0.825**	0.779**	0.865**
TP	−0.231	−0.064	0.607*	−0.362	0.202	0.763**	0.872**	0.813**	1	0.986**	0.965**
PP	0.066	0.165	0.651*	−0.179	0.404	0.638*	0.941**	0.937**	0.911**	1	0.934**
DIP	0.132	0.188	0.499	−0.081	0.148	0.735**	0.860**	0.801**	0.764**	0.860**	1