A

B

C

D

Mottles (< wet zone >)

Yes

No

Yes

Yes

Granules (< wet zone >)

No

No

No

Yes

Stones (< wet zone >)

Yes

No

Yes

No

Biomass

Roots

Roots

Roots

Roots

Depth of top layer (m)

1.9

1.8

2.1

1.5