Table 1 Soil pedological properties (mean ± standard deviation) of the studied sites measured between 0 and 10 cm depth and FAO soil classification.

From: Coronilla juncea, a native candidate for phytostabilization of potentially toxic elements and restoration of Mediterranean soils

Soil pedological properties

Sites

S

E1

E2

pHwater

8.08 ± 0.03a

7.94 ± 0.10a

8.11 ± 0.12a

CEC (meq/100 g)

20.30 ± 3.00ab

24.82 ± 7.74a

16.20 ± 3.52b

Clay (%)

20.92 ± 6.26a

20.00 ± 6.02a

15.76 ± 5.52a

Fine silt (%)

19.08 ± 1.05a

16.3 ± 6.45a

19.36 ± 8.27a

Coarse silt (%)

27.16 ± 6.41a

35.78 ± 5.41a

33.06 ± 7.49a

Fine sand (%)

14.4 ± 3.89a

10.56 ± 3.12a

12.5 ± 2.04a

Coarse sand (%)

18.5 ± 3.79a

17.36 ± 5.75a

19.34 ± 6.06a

CaO (g/kg)

10.86 ± 1.48a

11.09 ± 1.62a

9.03 ± 1.31a

K2O (g/kg)

0.22 ± 0.05a

0.21 ± 0.055a

0.19 ± 0.05a

MgO (g/kg)

0.42 ± 0.10a

0.21 ± 0.06b

0.18 ± 0.06b

Na2O (mg/kg)

36.2 ± 14.52a

28.8 ± 10.38a

36.4 ± 25.70a

P2O5 (mg/kg)

26.6 ± 11.35a

59.8 ± 38.54a

37.8 ± 9.98a

NTK (mg/g)

2.85 ± 0.77a

3.88 ± 2.13a

2.69 ± 0.94a

TC (%)

7.12 ± 2.47a

9.28 ± 2.27a

6.85 ± 1.27a

IC (%)

3.23 ± 1.12a

4.51 ± 1.81a

4.04 ± 0.68a

TOC (%)

3.89 ± 1.48a

4.78 ± 2.66a

2.82 ± 1.04a

SIR/BR (%)

794 ± 51a

757 ± 121a

493 ± 136b

FAO soil classification

Calcisol

Calcisol

Calcisol

  1. Means (n = 5) followed by different letters are significantly different (Wilcoxon test. p ≤ 0.05). Sites: S = reference site at Sormiou. E1 = Escalette 1 and E2 = Escalette 2. Parameters: CEC = cation exchange capacity; NTK = total Kjeldahl nitrogen; TC = total carbon; IC = inorganic carbon; TOC = total organic carbon; SIR/BR = substrate-induced respiration/soil basal respiration.
Back to article page