Table 1.
Annual characteristics and correlation coefficients (p < 0.05) for rainfall in the open area and in the throughfall in 2010 and 2011 in the Wielkopolski National Park (Jeziory Ecological Station)
| Annual characteristics | 2010 | 2011 | ||
|---|---|---|---|---|
| Open | Throughfall | Open | Throughfall | |
| Average conc. (mg/l) | 0.09 ± 0.01 | 0.16 ± 0.02 | 0.14 ± 0.01 | 0.34 ± 0.03 |
| Weighted average (mg/l) | 0.04 ± 0.01 | 0.10 ± 0.01 | 0.10 ± 0.01 | 0.23 ± 0.02 |
| Concentration range (mg/l) | <0.01–0.55 | 0.01–0.98 | <0.01–0.45 | 0.03–2.10 |
| Number of samples | 87 | 79 | 48 | 47 |
| Rainfall (mm) | 755 | 504 | 436 | 227 |
| Deposition (mg/m2/year) | 30.4 | 51.2 | 45.9 | 51.5 |
| Correlation coeff. SO4 2−/F- | 0.58 | 0.74 | 0.30 | 0.18 |
| Correlation coeff. NO3 −/F- | 0.66 | 0.77 | 0.65 | 0.22 |
| Correlation coeff. Cl−/F− | 0.51 | 0.71 | 0.30 | 0.24 |
| Correlation coeff. NO2 −/F− | 0.42 | 0.47 | 0.61 | 0.86 |
| Correlation coeff. PO4 3−/F− | 0.16 | 0.50 | 0.22 | 0.55 |