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. 2013 Jan 22;8(1):e53163. doi: 10.1371/journal.pone.0053163

Table 3. Pearson correlation coefficients between LULC within 200 m and 500 m buffer zone and river major elements of the upper Han River basin, China.

200 m riparian zone
Rainy season					Dry season
	URB	AGR	BAR	VEG	URB	AGR	BAR	VEG
T	0.375	−0.057	0.669^a	−0.424	−0.564	0.360	0.176	−0.294
pH	−0.205	−0.492	−0.426	0.657	−0.439	−0.224	0.311	0.027
EC	−0.263	0.247	0.616	−0.532	0.033	0.439	0.705^a	−0.773^a
TDS	−0.263	0.247	0.615	−0.532	0.033	0.439	0.705^a	−0.773^a
Cl⁻	−0.409	0.258	0.574	−0.480	−0.189	0.613	0.697^a	*−0.864*
NO₃ ⁻	−0.353	0.162	*0.800^b*	−0.563	0.134	0.424	0.719^a	−0.782^a
SO₄ ²⁻	−0.411	0.358	0.682^a	−0.626	−0.203	0.430	*0.849^b*	*−0.816^b*
HCO₃ ⁻	−0.067	0.137	0.211	−0.233	0.093	0.351	0.501	−0.593
Na⁺	−0.268	0.230	*0.862^b*	−0.663	−0.081	0.312	*0.870^b*	−0.758^a
K⁺	−0.473	−0.105	0.720^a	−0.290	−0.344	0.077	0.773^a	−0.483
Ca²⁺	−0.141	0.204	0.485	−0.440	0.213	0.477	0.491	−0.697^a
Mg²⁺	−0.276	0.156	0.560	−0.429	−0.058	0.250	0.694^a	−0.613

VEG, vegetated lands (forest and shrub); AGR, agriculture; URB, urban; BAR, bareland.

Bold values represent correlation with significance (^aSignificance at the 0.05; probability level; ^bSignificance at the 0.01 probability level).