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Figure 2
Discriminant analysis for the 0–5 cm soil layer, based on (a) soil chemical parameters, (b) physical parameters, (c) biological parameters and (d) soil physical, chemical and biological parameters. Stands are represented as follows: oak (°), beech (Φ), 40-year-old pine (Ξ), 16-year-old pine (H) and 3-year-old pine (Δ).