Variable | Agriculture | Forest | Season | Main effect (stream type) | Interaction (season × stream type) | |
---|---|---|---|---|---|---|
Temperature (°C) | 23.32 ± 5.75 | 21.80 ± 4.60 | < 0.001 | 0.209 | 0.228 | |
DO (mg/L) | 7.00 ± 2.46 | 6.80 ± 1.14 | 0.323 | 0.901 | 0.111 | |
Specific conductance (µS/cm) | 311.79 ± 197.46 | 231.15 ± 63.22 | < 0.001 | 0.160 | 0.002 | |
Summer | 0.012 | |||||
Fall | 0.024 | |||||
pH (su) | 7.96 ± 0.87 | 7.98 ± 0.41 | < 0.001 | 0.826 | 0.007 | |
Spring | 0.021 | |||||
Turbidity (NTU) | 219.08 ± 305.75 | 49.38 ± 16.10 | 0.043 | 0.060 | 0.045 | |
Spring | 0.002 | |||||
Total suspended solids (mg/L) | 48.93 ± 44.26 | 27.35 ± 11.55 | 0.057 | 0.117 | 0.047 | |
Spring | 0.004 | |||||
Chloride (mg/L) | 21.03 ± 17.83 | 13.21 ± 8.92 | 0.005 | 0.304 | 0.434 | |
Alkalinity (mg/ L as CaCO3) | 93.03 ± 62.54 | 98.60 ± 26.80 | < 0.001 | 0.750 | < 0.001 | |
Spring | 0.028 | |||||
Hardness (mg/L as CaCO3) | 122.53 ± 77.34 | 105.53 ± 27.72 | < 0.001 | 0.562 | < 0.001 | |
Summer | 0.038 | |||||
TAN (mg/L) | 0.18 ± 0.22 | 0.03 ± 0.03 | 0.018 | 0.005 | 0.002 | |
Summer | < 0.001 | |||||
Nitrate (mg/L) | 1.09 ± 0.56 | 0.54 ± 0.14 | 0.269 | 0.010 | 0.102 | |
Total nitrogen (mg/L) | 2.52 ± 0.82 | 2.22 ± 0.40 | 0.018 | 0.001 | 0.212 | |
Phosphate (mg/L) | 0.16 ± 0.08 | 0.05 ± 0.03 | 0.290 | < 0.001 | 0.638 | |
Total phosphorus (mg/L) | 0.47 ± 0.20 | 0.21 ± 0.13 | 0.003 | < 0.001 | 0.678 | |
Water-column Chl-a (μg /L) | 25.29 ± 18.01 | 11.83 ± 4.74 | 0.030 | 0.087 | 0.193 | |
Benthic Chl-a (μg/cm3) | 0.42 ± 0.27 | 0.32 ± 0.22 | 0.002 | 0.329 | 0.988 | |
Total Habitat Score | 150 ± 26 | 182 ± 10 | 0.022 | 0.020 | 0.372 | |
Instream Habitat Score | 70 ± 9 | 83 ± 9 | 0.039 | 0.010 | 0.829 | |
Riparian Habitat Score | 80 ± 18 | 98 ± 2 | 0.056 | 0.040 | 0.055 |