SAGA-GIS Tool Library Documentation (v7.7.0)

Tool Soil Texture Classification

Derive soil texture classes from sand, silt and clay contents. Currently supported schemes are USDA and German Kartieranleitung 5.


References


Parameters

 NameTypeIdentifierDescriptionConstraints
InputSand (*)Grid, input, optionalSANDsand content given as percentage-
Silt (*)Grid, input, optionalSILTsilt content given as percentage-
Clay (*)Grid, input, optionalCLAYclay content given as percentage-
OutputSoil TextureGrid, outputTEXTUREsoil texture-
Sum (*)Grid, output, optionalSUMSum of percentages-
Scheme as Polygons (*)Shapes, output, optionalPOLYGONS--
OptionsGrid SystemGrid systemPARAMETERS_GRID_SYSTEM--
ClassificationChoiceSCHEME-Available Choices:
[0] USDA
[1] Germany KA5
[2] Belgium/France
[3] user defined
Default: 0
Default Colour SchemeChoiceCOLORS-Available Choices:
[0] Scheme 1
[1] Scheme 2
[2] Scheme 3
Default: 0
User DefinitionStatic tableUSERThe colour is defined as comma separated red, green and blue values (in the range 0 to 255). If the colour field is empty it will be generated from the chosen default colour scheme. Key and name are simple text labels specifying each class. The polygon is defined as pairs of sand (=x) and clay (=y) separated by a blank and separated from the next pair by a comma. 4 Fields:
- 1. [string] COLOR
- 2. [string] KEY
- 3. [string] NAME
- 4. [string] POLYGON
X/Y AxesChoiceXY_AXES-Available Choices:
[0] Sand and Clay
[1] Sand and Silt
[2] Silt and Sand
[3] Silt and Clay
[4] Clay and Sand
[5] Clay and Silt
Default: 3
TriangleChoiceTRIANGLE-Available Choices:
[0] right-angled
[1] isosceles
Default: 1
(*) optional

Command-line

Usage: saga_cmd grid_analysis 14 [-SAND <str>] [-SILT <str>] [-CLAY <str>] [-TEXTURE <str>] [-SUM <str>] [-SCHEME <str>] [-COLORS <str>] [-USER <str>] [-POLYGONS <str>] [-XY_AXES <str>] [-TRIANGLE <str>]
  -SAND:<str>    	Sand
	Grid, input, optional
  -SILT:<str>    	Silt
	Grid, input, optional
  -CLAY:<str>    	Clay
	Grid, input, optional
  -TEXTURE:<str> 	Soil Texture
	Grid, output
  -SUM:<str>     	Sum
	Grid, output, optional
  -SCHEME:<str>  	Classification
	Choice
	Available Choices:
	[0] USDA
	[1] Germany KA5
	[2] Belgium/France
	[3] user defined
	Default: 0
  -COLORS:<str>  	Default Colour Scheme
	Choice
	Available Choices:
	[0] Scheme 1
	[1] Scheme 2
	[2] Scheme 3
	Default: 0
  -USER:<str>    	User Definition
	Static table
	4 Fields:
	- 1. [string] COLOR
	- 2. [string] KEY
	- 3. [string] NAME
	- 4. [string] POLYGON
	
  -POLYGONS:<str>	Scheme as Polygons
	Shapes, output, optional
  -XY_AXES:<str> 	X/Y Axes
	Choice
	Available Choices:
	[0] Sand and Clay
	[1] Sand and Silt
	[2] Silt and Sand
	[3] Silt and Clay
	[4] Clay and Sand
	[5] Clay and Silt
	Default: 3
  -TRIANGLE:<str>	Triangle
	Choice
	Available Choices:
	[0] right-angled
	[1] isosceles
	Default: 1