Soil Map Unit File (SMUF)

Filename

dss_v1_REGION_smuf

Description

The Soil Map Unit File identifies the soil codes and landscape phases which are components of a polygon. In later versions this file was converted into the CMP and MAPUNIT tables.

Contents

Contents of dataset: dss_v1_REGION_smuf
Field Name Type Width Description
1 PROVINCE string 2 Province Code
2 MAPUNITNOM string 60 Map Unit Symbol
3 SOIL_CODE1 string 3 Soil Code of component 1
4 MODIFIER1 string 3 Soil Code Modifier of component 1
5 EXTENT1 integer 3 Percent of polygon occupied by the component of component 1
6 SOIL_CODE2 string 3 Soil Code of component 2
7 MODIFIER2 string 3 Soil Code Modifier of component 2
8 EXTENT2 integer 3 Percent of polygon occupied by the component of component 2
9 SOIL_CODE3 string 3 Soil Code of component 3
10 MODIFIER3 string 3 Soil Code Modifier of component 3
11 EXTENT3 integer 3 Percent of polygon occupied by the component of component 3
12 SLOPEP1 float 5 Slope Steepness of component 1
13 SLOPEP2 float 5 Slope Steepness of component 2
14 SLOPEP3 float 5 Slope Steepness of component 3
15 STONE1 string 1 Surface Stoniness Class of component 1
16 STONE2 string 1 Surface Stoniness Class of component 2
17 STONE3 string 1 Surface Stoniness Class of component 3
17 DATE string 8 Date

Relationships

Limitations

The proportion of the polygon occupied by each separate component of a map unit is identified. However, their location within any polygon is not defined. The data model limits the number of components to a maximum of three, even though more may have been recognized in the field.

Note that the dominant component for some map units will be a non-soil (i.e. water, rock, or ice). Analyses involving dominant soil components should take this fact into account.