Table 1.
Overview of study plot parameters and ranges
| Variable | Mean ± SE | Median | Range (min–max) | 1st quartile | 3rd quartile |
|---|---|---|---|---|---|
| Distance from the river (m) | 10.7 ± 0.7 | 5 | 1–60 | 1 | 15 |
| DIFN (diffusive non-interceptance) | 0.057 ± 0.004 | 0.035 | 0.003–0.751 | 0.017 | 0.066 |
| Soil pH | 4.02 ± 0.03 | 3.94 | 3.15–6.72 | 3.68 | 4.23 |
| Soil organic layer thickness (cm) | 4.4 ± 0.2 | 3.5 | 0.5–20 | 2 | 6 |
| Understory biomass (g m−2) | 91.43 ± 5.19 | 57.99 | 0.0–530.55 | 17.65 | 138.49 |
| Cover proportion of Carpino-Fagetea sylvaticae and Alno glutinosae–Populetea albae classes plants in understory | 0.046 ± 0.005 | 0.0 | 0.0–0.763 | 0.000 | 0.442 |
| Cover proportion of Vaccinio-Piceetea class plants in understory | 0.486 ± 0.016 | 0.47 | 0.0–0.965 | 0.251 | 0.761 |
| Abundance per sample | 14.2 ± 0.7 | 11 | 0–66 | 5 | 20 |
| Species richness | 4.9 ± 0.2 | 5 | 0–13 | 3 | 7 |
| Shannon H′ | 1.180 ± 0.033 | 1.317 | 0.000–2.302 | 0.717 | 1.629 |
| Density (no. individuals m−2) | 3545.0 ± 167.2 | 2750 | 0–16,500 | 1250 | 5000 |