National Ecological Framework (10 of 23)
Surface Material
These data are presented as a set of components within each
polygon. The following attributes are included:
| Name | Description |
|---|---|
| CMP | Component Number (arbitrary) |
| PERCENT | Percent of polygon occupied by the component |
| MATERIAL | Surface Material |
Surface material includes the abiotic material at the earth's surface. The following table shows the class definitions that are used.
| Code | Class | Description |
|---|---|---|
| IC | ICE and SNOW | Glacial ice and permanent snow |
| OR | ORGANIC SOIL | Contains > 30% organic matter as measured by weight |
| RO | ROCK | Rock undifferentiated |
| SO | MINERAL SOIL | Predominantly mineral particles: contains < 30% organic matter as measured by weight |
| UR | URBAN | Urban areas. Note that only a few major urban area polygons are included on SLC source maps, therefore, do not use for tabulating total urban coverage |
Source:
Soil Landscapes of canada (SLC) V.2.2 (1996), National Soil DataBase, Canadian Soil Information System. Available at : /cansis/nsdb/slc/v2.2/
Shields, J. A., C. Tarnocai, K.W.G. Valentine, and K. B. MacDonald. 1991. Soil Landscapes of Canada - Procedures Manual and User's Handbook. LRRC Contribution Number 88-29, Land resource Research Centre, research Branch, Agriculture Canada, Ottawa,74pp. This manual is superceded by the Internet version available at: /cansis/nsdb/slc/index.html