Research Article
Effects of Urbanization on Water Quality and the Macrobenthos Community Structure in the Fenhe River, Shanxi Province, China
Table 2
Environmental parameters for sediment at the sampling sites and the relationships between the parameters and land use.
| Variable | Min | Max | Mean | SD | r | Cropland (%) | Grassland (%) | Forest (%) | Wetland (%) | Percentage of impervious area (PIA, %) |
| TN (g/kg) | 0.74 | 1.49 | 1.02 | 0.19 | 0.260 | −0.240 | −0.195 | 0.220 | 0.449 | TP (mg/kg) | 0.60 | 1.65 | 0.80 | 0.24 | 0.322 | −0.216 | −0.270 | −0.037 | 0.219 | SOM (g/kg) | 13.71 | 84.05 | 32.99 | 18.95 | 0.253 | −0.260 | −0.126 | 0.051 | 0.322 | Particle size >2 mm (%) | 0.00 | 38.69 | 6.22 | 10.95 | −0.139 | −0.196 | 0.294 | 0.307 | −0.54 | Particle size <2 mm (%) | 61.31 | 100.00 | 93.78 | 10.95 | 0.139 | 0.196 | −0.294 | −0.307 | 0.54 | PAHs (mg/kg) | 0.28 | 23.33 | 2.83 | 5.03 | 0.026 | −0.185 | −0.296 | 0.206 | 0.658 | Zn (mg/kg) | 28.91 | 119.73 | 48.7 | 21.69 | −0.024 | −0.034 | −0.183 | 0.276 | 0.353 | Pb (mg/kg) | 8.47 | 20.74 | 13.44 | 3.19 | 0.414 | −0.591 | −0.140 | 0.140 | 0.209 | Cd (mg/kg) | 0.06 | 0.27 | 0.12 | 0.05 | 0.351 | −0.436 | −0.185 | 0.152 | 0.363 | Cr (mg/kg) | 16.33 | 98.64 | 37.10 | 16.06 | 0.232 | −0.014 | −0.439 | 0.164 | 0.394 | Ni (mg/kg) | 7.21 | 32.27 | 16.08 | 5.90 | −0.150 | −0.094 | −0.165 | 0.573 | 0.538 | Cu (mg/kg) | 5.85 | 65.78 | 15.89 | 12.61 | −0.107 | −0.210 | −0.276 | 0.636 | 0.787 |
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TN, total nitrogen concentration; TP, total phosphorus concentration; SOM, sediment organic matter content; PAHs, polycyclic aromatic hydrocarbon concentration; SD, standard deviation. ; . |