# 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