USDA Soil taxonomy

United States Department of Agriculture soil taxonomy

compare World Reference Base for Soil Resources

Alfisols

• 
  Alfisol
• 
  Alfisol
• 
  Alfisols distribution

Andisols

• 
  Andisol
• 
  Andisol
• 
  Andisols distribution
• 
  Gli Andisol nel mondo

Aridisols

• 
  Aridisol
• 
  Aridisol
• 
  Aridisols distribution

Entisols

• 
  Entisol
• 
  Entisol
• 
  Entisols distribution

Gelisols

• 
  Gelisol
• 
  Gelisol

Histosols

• 
  Histosol
• 
  Histosol

Inceptisols

• 
  Inceptisol

Mollisols

• 
  Mollisol

Oxisols

• 
  Oxisol

Spodosols

• 
  Spodosol
• 
  Humus Podzol
• 
  Moder podzol

Ultisols

• 
  Ultisol

Vertisols

• 
  Vertisol