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3.0 Mapping Conventions

The following rules and standards apply to TEM in British Columbia. A list of core polygon attributes, which must be captured in the map database, are presented in Section 4.1.

3.1 Ecoregion/Biogeoclimatic Units

Ecoregion and biogeoclimatic polygons are labeled according to the ecoregion and biogeoclimatic units they represent. Ecosection units are given a three-letter code. Biogeoclimatic units receive codes of up to nine characters in length (Figure 3.1). Both ecosection and biogeoclimatic unit codes are available on the TEM website (see Appendix B).

Figure 3.1Symbols for Biogeoclimatic Units


The ecosection unit symbol is generally presented above the biogeoclimatic unit symbol, with both enclosed by a circle (see Figure 3.2). A new symbol is placed on the map whenever one or both of the units change.

Figure 3.2Symbols for Ecosection and Biogeoclimatic Units

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