Table 2 Pearson correlation coefficients among the water chemistry parameters, habitat parameters and land uses at the sampling stations in the Qing River basin.

From: Estimating the nutrient thresholds of a typical tributary in the Liao River basin, Northeast China

Parameter	TP	TN	NH₄⁺-N	COD_Cr	BOD₅	DO	pH	EC	NO₃⁻N	Chloride	Sulfate	FCC	TBC
Physical-Chemical Parameter
TP	1
TN	0.226	1
NH₄⁺-N	0.295	−0.077	1
COD_Cr	0.711**	0.409*	0.474**	1
BOD₅	0.707**	0.151	0.187	0.680**	1
DO	0.164	−0.433*	0.198	0.228	0.355*	1
pH	0.027	−0.5	0.306	0.006	−0.014	0.711**	1
EC	0.420*	0.190	0.785**	0.558**	0.377**	0.080	−0.008	1
NO₃⁻N	−0.312	0.646**	0.433	0.404	0.068	−0.055	−0.146	−0.561*	1
Chloride	0.250	0.461*	0.908**	0.562*	−0.101	−0.575**	−0.323	0.894**	0.544*	1
Sulfate	0.221	0.690**	0.755**	0.708**	−0.128	−0.534*	−0.682**	0.829**	0.447	0.736**	1
FCC	0.212	0.047	0.183	0.149	0.332	−0.343	−0.367	0.396	0.375	0.393	0.305	1
TBC	−0.027	0.608**	0.377	0.137	−0.063	−0.231	−0.202	0.406	0.314	0.256	0.449	−0.004	1
Habitat Descriptors
Epifaunal Substrate⁄Available Cover	−0.35*	−0.226	−0.313	−0.539**	−0.302	−0.105	−0.029	−0.293	−0.257	−0.659**	−0.711^**	−0.100	−0.463*
Embeddedness	−0.378*	−0.372*	−0.377*	−0.574**	−0.326	−0.093	−0.024	−0.372*	−0.253	−0.659**	−0.697^**	−0.060	−0.493^*
Velocity/Depth Regime	−0.354*	−0.329	−0.266	−0.507**	−0.332	−0.106	−0.020	−0.267	−0.235	−0.609**	−0.673^**	−0.088	−0.382
Sediment Deposition	−0.374*	−0.376*	−0.341*	−0.571**	−0.356*	−0.117	−0.035	−0.318	−0.258	−0.645**	−0.669^**	−0.116	−0.508^*
Channel Flow Status	−0.354*	−0.366*	−0.304	−0.537**	−0.338*	−0.092	−0.006	−0.317	−0.245	−0.578**	−0.683^**	−0.106	−0.431
Channel Alteration	−0.416*	−0.381*	−0.275	−0.517**	−0.362*	−0.048	0.016	−0.303	−0.225	−0.573*	−0.676^**	−0.045	−0.392
Frequency of Riffles	−0.352*	−0.345*	−0.252	−0.518**	−0.338*	−0.111	−0.010	−0.259	−0.263	−0.595**	−0.708^**	−0.086	−0.443
Bank Stability	−0.346*	−0.343*	−0.216	−0.482**	−0.309	−0.092	−0.014	−0.227	−0.196	−0.511*	−0.674^**	−0.076	−0.369
Vegetative Protection	−0.366*	−0.354*	−0.293	−0.533**	−0.333	−0.128	−0.053	−0.293	−0.229	−0.602^**	−0.690^**	−0.066	−0.417
Riparian Vegetative Zone Width	−0.354*	−0.369*	−0.293	−0.519**	−0.311	−0.102	−0.033	−0.295	−0.187	−0.573^*	−0.686^**	−0.033	−0.448
Land Use
Cropland	0.497**	0.650**	0.374*	0.664**	0.435**	−0.080	−0.196	0.524**	0.308	0.717**	0.698**	0.088	0.632*
Urban Land	0.779**	0.105	0.527**	0.738**	0.751**	0.368*	0.121	0.623**	0.322	0.820**	0.356	0.313	0.234
Forest Land	−0.549**	−0.615**	−0.408*	−0.698**	−0.484**	0.038	0.169	−0.56**	−0.312	−0.738**	−0.693**	−0.100	−0.623**
Population	0.813**	0.074	0.520**	0.788**	0.832**	0.388*	0.153	0.571**	0.118	0.536*	0.166	0.309	0.099

^*Indicates significance at the 0.05 probability level.
^**Indicates significance at the 0.01 probability level.

Back to article page

Table 2 Pearson correlation coefficients among the water chemistry parameters, habitat parameters and land uses at the sampling stations in the Qing River basin.

Search

Quick links