Table 2.

Correlations between sediment and nutrient yields and predictors of spatial variability based on Pearson’s r coefficient of determination. N = 5 for each comparison. P GEOL is the potential watershed phosphorus contribution from naturally occurring geological materials, and P Soil A is the estimated phosphorus concentration in the Soil A horizon. A full list of predictor variable definitions are provided in Table S3. Bold results are statistically significant at p-value ≤ 0.1

Predictor	Suspended sediment	Total particulate phosphorus	Total dissolved phosphorus	Total particulate nitrogen	Total dissolved nitrogen
Bank height	0.90	0.80	− 0.21	0.83	− 0.63
Channel width	− 0.12	0.36	0.76	0.35	− 0.55
Clay	− 0.63	− 0.41	0.59	− 0.36	− 0.02
P GEOL	− 0.66	− 0.15	0.85	0.02	0.00
P SOIL A	− 0.19	0.06	0.44	0.26	− 0.08
Soil depth	0.80	0.51	− 0.64	0.45	− 0.14
Sanitary sewer	0.07	0.55	0.85	0.72	− 0.73
Sand	0.75	0.44	− 0.63	0.41	− 0.12
Septic density	− 0.09	− 0.50	− 0.84	− 0.68	0.81
Silt	− 0.88	− 0.44	0.61	− 0.47	0.35
Turfgrass cover	− 0.46	0.19	0.98	0.30	− 0.29
Stream density	− 0.56	− 0.45	− 0.21	− 0.68	0.78
Stream length	− 0.50	− 0.57	− 0.43	− 0.79	0.88
Daily max WT	− 0.36	0.11	0.89	0.20	− 0.46
Daily min DO	0.55	0.13	− 0.88	0.01	0.29