Nutrient ratio

Site

Soil

K_tot

[g∙kg^–1]

Na_tot

[g∙kg^–1]

Ca_tot [g∙kg^–1]

Mg_tot [g∙kg^–1]

CEC_pot ratio

DAI16

modern

soil

37.4

12.8

29.2

11.4

0.16

0.55

3.80

1.79

1.50

pre-AD 79

paleosol

25.8

8.4

31.7

9.2

0.16

0.79

1.57

2.99

1.27

DAI18

modern

soil

38.6

13.5

38.2

13.1

0.07

0.49

0.77

0.86

0.26

pre-AD 79

paleosol

33.2

16.7

30.3

8.3

0.15

0.49

0.40

4.57

1.29

VdM

modern

soil

37.3

11.9

31.6

9.7

0.24

0.90

0.47

5.19

1.47

pre-AD 79

paleosol

15.0

9.8

23.0

6.4

0.29

1.47

0.85

7.70

2.36

VdR

modern

soil

35.4

10.7

32.5

10.5

1.21

0.18

0.72

2.58

0.92

pre-AD 79

paleosol

21.1

6.6

23.2

7.8

3.13

0.89

4.05

5.40

1.63