Component Table
Filename
slc_v2r2_canada_cmp
Description
The Component Table describes the different soil landscapes which are found in a polygon. Note that components describe only the land area portion of the polygon.Contents
| Field | Name | Type | Width | Description |
|---|---|---|---|---|
| 1 | SL | string | 6 | Soil Landscape Identifier |
| 2 | CMP | string | 2 | Component Number |
| 3 | PERCENT | string | 3 | Percent of polygon occupied by the component |
| 4 | KINDMAT | string | 1 | Kind of Surface Material |
| 5 | VEGET | string | 2 | Vegetation Cover and/or Land Use |
| 6 | PMDEP | string | 3 | Parent Material Mode of Deposition |
| 7 | CFRAG | string | 3 | Coarse Fragment Content of the Control Section |
| 8 | ROOTDP | string | 6 | Rooting Depth, unrestricted |
| 9 | DRAIN | integer | 8 | Drainage Class |
| 10 | DEVEL | integer | 8 | Soil Development |
| 11 | CALC | integer | 8 | Parent Material Calcareous Class |
| 12 | LOCSF | integer | 8 | Local Surface Form |
| 13 | SLOPE | integer | 8 | Slope Gradient |
| 14 | SNF | integer | 8 | Province Code |
| 15 | SOILCODE | integer | 8 | Soil Code |
| 16 | MODIFIER | integer | 8 | Soil Modifier Code |
Relationships
- A record in this file is unique with respect to SL and CMP.
- SNF and SOILCODE and MODIFIER are required to relate (N:1) to the Soil Name Table.
- The LAT contains information about water bodies (information which previously was found in this file).
- A set of associated documentation tables are included as INFO files in these datasets. The naming convention is {covername}.CMP_{field name} where {field name} is the name of the field in the component file.
Note that the dominant component for some polygons will be a non-soil (e.g. ice or rock). Analyses involving dominant soil components should take this fact into account.
Origin
The Soil Landscape Component Table was developed in response to the requirements of the Soil Carbon Data Base. It has been compiled for all map coverages in Canada and is beneficial to all other applications because it consists of major attributes important to plant growth and land management. The attribute list of the component file consists of a subset of those in the original dominant and subdominant files compiled for the provincial map coverages. However, the component file allows for more than two soil landscapes per polygon, and provides explicit descriptions of inclusions.