Soil Texture Classification

Gianluca Massei (c) 2007 (g_massa@libero.it)
Derive soil texture classes with USDA scheme from sand, silt and clay contents.

1 - Clay
2 - Silty Clay
3 - Silty Clay-Loam
4 - Sandy Clay
5 - Sandy Clay-Loam
6 - Clay-Loam
7 - Silt
8 - Silt-Loam
9 - Loam
10 - Sand
11 - Loamy Sand
12 - Sandy Loam

Reference:
USDA NRCS Soils Website

Parameters

Grid system
Grid system
Grid system
Sand
Input Grid
sand content given as percentage
Silt
Input Grid
silt content given as percentage
Clay
Input Grid
clay content given as percentage
Soil Texture
Output Grid
soil texture
Sum
Output Grid
Sum of percentages