Changing concepts in soil classification. The structure of
Changing concepts in soil classification. The structure of
Changing concepts in soil classification. The structure of
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Histic or Folic horizon > 40 cm deep<br />
↓no<br />
Cryic horizon<br />
↓ no<br />
Human modifications<br />
↓ no<br />
Depth < 25 cm<br />
↓ no<br />
> 35% clay, vertic horizon<br />
↓ no<br />
Fluvic materials<br />
↓ no<br />
Salic horizon<br />
↓ no<br />
Gleyic properties<br />
↓ no<br />
Andic or vitric horizon<br />
↓ no<br />
Spodic horizon<br />
yes<br />
→<br />
yes<br />
→<br />
yes<br />
→<br />
yes<br />
→<br />
yes<br />
→<br />
yes<br />
→<br />
yes<br />
→<br />
yes<br />
→<br />
yes<br />
→<br />
yes<br />
→<br />
HISTOSOLS<br />
CRYOSOLS<br />
ANTHROSOLS<br />
LEPTOSOLS<br />
VERTISOLS<br />
FLUVISOLS<br />
SOLONCHAKS<br />
GLEYSOLS<br />
ANDOSOLS<br />
PODZOLS
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