FAO Soil Texture

Texture is the relative proportion of sand, silt and clay of the dominant soil for each soil map polygon. Texture classes are:

Coarse texture: sands, loamy sand and sandy loams with less than 18 % clay, and more than 65 % sand.

Medium texture: sandy loams, loams, sandy clay loams, silt loams with less than 35 % clay and less than 65 % sand; the sand fractions may be as high as 82 % if a minimum of 18 % clay is present.

Fine texture: clays, silty clays, sandy clays, clay loams and silty clay loams with more than 35 % clay.

Where two or three texture names appears, this means that all named textures are present in the map unit.

Texture Codeset

  • COARSE
  • FINE
  • FINE-COARSE
  • FINE-MED-CRS
  • FINE-MEDIUM
  • MEDIUM
  • MEDIUM-COARSE