Domsub Table
Filename
slc_v2r2_canada_domsub
Description
The DOMSUB file describes aspects of soil landscapes which had been described in version 1.1, but not carried forward into the Component / Carbon Layer Table structure.
Contents
| Field | Name | Type | Width | Description |
|---|---|---|---|---|
| 1 | SL | string | 6 | Soil Landscape Identifier |
| 2 | RELIABILITY | string | 1 | Reliability class of polygon |
| 3 | COMPLEXITY | string | 1 | Complexity class of polygon |
| 4 | DISTRDOM | integer | 3 | Percentage of the polygon dominant soil landscape |
| 5 | DISTRSUB | string | 3 | Percentage of the polygon subdominant soil landscape |
| 6 | REGFMDOM | string | 1 | Regional Landform (dominant soil landscape) |
| 7 | REGFMSUB | string | 1 | Regional Landform (subdominant soil landscape) |
| 8 | CMPLRDOM | string | 1 | Kind of compacted, consolidated, or contrasting layer(dominant soil landscape) |
| 9 | CMPLRSUB | string | 1 | Kind of compacted, consolidated, or contrasting layer(subdominant soil landscape) |
| 10 | CMPDPDOM | string | 1 | Depth to compacted, consolidated, or contrasting layer (dominant soil landscape) |
| 11 | CMPDPSUB | string | 1 | Depth to compacted, consolidated, or contrasting layer (subdominant soil landscape) |
| 12 | AVWATDOM | string | 1 | Available water capacity in upper 120 cm (dominant soil landscape) |
| 13 | AVWATSUB | string | 1 | Available water capacity in upper 120 cm (subdominant soil landscape) |
| 14 | WATABDOM | string | 1 | Average depth to water table (dominant soil landscape) |
| 15 | WATABSUB | string | 1 | Average depth to water table (subdominant soil landscape) |
| 16 | PHCALDOM | decimal | 3 | pH of upper 15 cm of soil measured in CaCl2 (dominant soil landscape) |
| 17 | PHCALSUB | decimal | 3 | pH of upper 15 cm of soil measured in CaCl2 (subdominant soil landscape) |
| 18 | PHWATDOM | decimal | 3 | pH of upper 15 cm of soil measured in water (dominant soil landscape) |
| 19 | PHWATSUB | decimal | 3 | pH of upper 15 cm of soil measured in water (subdominant soil landscape) |
| 20 | NITRODOM | string | 1 | Nitrogen content (dominant soil landscape) |
| 21 | NITROSUB | string | 1 | Nitrogen content (subdominant soil landscape) |
| 22 | WATBDDOM | string | 1 | Water bodies (dominant soil landscape) |
| 23 | WATBDSUB | string | 1 | Water bodies (subdominant soil landscape) |
| 24 | NAME1DOM | string | 6 | Most representative soil name code (dominant soil landscape) |
| 25 | NAME1SUB | string | 6 | Codominant or closely associated soil name code (dominant soil landscape) |
| 26 | NAME2DOM | string | 6 | Most representative soil name code (subdominant soil landscape) |
| 27 | NAME2SUB | string | 6 | Codominant or closely associated soil name code (subdominant soil landscape) |
Relationships
- A record in this file is unique with respect to SL.
- SL is required to relate (1:1) to the PAT.
The proportion of the polygon occupied by the dominant and subdominant soil landscapes is identified. However, their location within the polygon is not defined.
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.
Limitations
- The SLCs have seen quite a few updates and boundary changes since version 1.1, but the DOMSUB data has not been validated or upgraded. Consequently, the reliability of this information may be poorer than the data found in the Component Table.
Origin
The DOMSUB file was extracted from the original dominant and subdominant files found in SLC version 1.1, in response to continuing requirements for pH and other attributes found only in these files. It was compiled from all existing 1.1 GIS coverages by intersecting those polygons with the more current version 2.2 polygons, and linking the version 2.2 polygon to the most dominant version 1.1 data.