Time interval (vears)

Soil organic matter (%)

Moisture color

SVN*

5.6 ± 0.3

10 R2.5/2-10 R3/2

1 - 5

4.8 ± 0.4

10 R2.5/1-10 R2.5/2

6 - 10

4.7 ± 0.2

10 R2.5/2-10 R3/2

11 - 15

4.2 ± 0.2

10 R2.5/2

16 - 20

3.4 ± 0.2

10 R2.5/2

21 - 25

3.7 ± 0.3

10 R2.5/1-10 R3/2

26 - 30

3.7 ± 0.2

10 R2.5/2-10 R3/2