STE_TEI_ATTRIBUTE_POLYS_SP contains Terrestrial Ecosystem Information (TEI) polygons with key and amalgamated (concatenated) attributes derived from the RISC (Resource Inventory Standards Committee) standard attributes. These describe the physical and biological characteristics of ecosystems at a landscape level. TEI currently includes Terrestrial Ecosystem Mapping (TEM), Predictive Ecosystem Mapping (PEM), Sensitive Ecosystems Inventory (SEI), Terrain Mapping (TER), Wetland Mapping (WET) and Soil Mapping (SOIL). Mapping methods include manual air photo interpretation and modeling supported by limited field checking. **Current version**: v12 (2026-06-22)

Broad Ecosystem Units were mapped using predictive modeling methods from various data sources (ranging from 1:50,000 to 1:250,000 in scale) and are referenced to the CanVec digital spatial framework (1:50,000). Broad Ecosystem Units (BEU) are a level in the Yukon bioclimate ecosystem classification system that represents areas with similar broad vegetation communities, terrain type (soils and topography) within bioclimate zones. Broad Ecosystem Units are described in the accompanying report "Regional Ecosystems of West-Central Yukon, Part 1: Ecosystem descriptions ".The intended application for mapped broad ecosystem units is 1:100,000 or smaller (1:100,000 - 1:250,000 scale) - interpretations derived from the map products should not be applied at more detailed scales, even though the resultant 30m raster map allows users to view results at more detailed resolutions. With new information, boundaries and designations of Broad Ecosystem Units can change. Updates to Broad Ecosystem Units occur only periodically. For the most current information, or if you have questions, please contact the Ecological and Landscape Classification Program (ELC@yukon.ca).Distributed from [GeoYukon](https://yukon.ca/geoyukon) by the [Government of Yukon](https://yukon.ca/maps) . Discover more digital map data and interactive maps from Yukon's digital map data collection.For more information: [geomatics.help@yukon.ca](mailto:geomatics.help@yukon.ca)

Terrestrial Ecosystem Information (TEI) Project Boundaries contain boundaries (study areas) and attributes describing each project (project level metadata), plus links to the locations of other data associated with the project (e.g., reports, polygon datasets, plotfiles, legends). TEI project boundaries should be used in conjunction with TEI detailed inventory polygons which describe the physical and biological attributes of ecosystems. TEI currently includes six broad project types: Terrestrial Ecosystem Mapping (TEM), Predictive Ecosystem Mapping (PEM), Terrain Mapping (TER), Sensitive Ecosystem Inventory (SEI), Soil Mapping (SL), and Wildlife Mapping (WLD). TEI inventory polygons with full Resources Information Standards Committee (RISC) attributes can be accessed through the [Terrestrial Ecosystem Information (TEI) Data Distribution Packages](https://catalogue.data.gov.bc.ca/dataset/8fd15e4e-e7b1-4566-81d1-1ff8947bfd46). TEI inventory polygons with simplified and amalgamated (concatenated) RISC attributes can be accessed through the [Terrestrial Ecosystem Information (TEI) Detailed Polygons with Short Table Attribute Table](https://catalogue.data.gov.bc.ca/dataset/f2cd2cc3-5f58-481c-bf3c-64934acb6fad). **Current version**: v12 (2026-06-22)

Mapping of exceptional forest ecosystems (EFE) in the urban planning code (CDU) on the territory of Laval.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

The Natural Disturbance Type map is based on the Provincial Biodiversity Guidebook (1995) and the current and most detailed version of the approved corporate provincial Biogeoclimatic Ecosystem Classification (BEC) Zone/Subzone/Variant/Phase map (version 13.1, July 8, 2026) (Data Catalog record: https://catalogue.data.gov.bc.ca/dataset/bec-map). The natural disturbance type classification code is used to designate a period process or event such as insect outbreaks, fire, disease, flooding, windstorms and avalanches that cause ecosystem change and renewal. Natural disturbance type classification and mapping is used for a wide variety of applications in British Columbia. A few examples include: delineation of Natural Disturbance Types for Landscape Unit Planning; delineation of Seed Planning Zones; as an input for Predictive Ecosystem Mapping; reporting on the ecological representation of the Protected Areas Strategy; and as a level in the classification hierarchy for Broad Ecosystem Units. Note that this mapping is deliberately extended across the ocean, lakes, glaciers, etc to facilitate intersection with a terrestrial landcover layer of your choice

The TEI Data Distribution packages in this folder contain of the full Terrestrial Ecosystem Information (TEI) dataset split into Predictive Ecosystem Mapping (PEM) data and non-PEM data which includes Terrestrial Ecosystem Mapping (TEM), Terrain Mapping (TER), Bioterrain Mapping (TBT) Terrain Stability Mapping (TSM), Sensitive Ecosystems Inventory (SEI), Soil Mapping (SOIL project boundaries only), and Wildlife Habitat Ratings (WHR project boundaries only) by Natural Resource Sector Region (see Index map .pdf). Data includes the Project Boundaries (with project metadata and links to related data such as reports), Long Table (detailed mapping polygons with the full RISC standard attribute table), Short Table (detailed mapping polygons with key and amalgamated (concatenated) attributes derived from Long Table), On-site Symbol features (point, line or polygon terrain features such as landslide tracks, scarps), Sample Sites (field sampling locations), and any user-defined tables. The data dictionary is also available. This data is in file geodatabase format. Current version: v11 (published on 2024-10-03) Previous versions: v10 (published on 2023-11-14), v9 (published on 2023-03-01), v8 (published on 2016-09-01) Note that the Soil Mapping dataset is available from: http://www.env.gov.bc.ca/esd/distdata/ecosystems/Soil_Data/SOIL_DATA_FGDB/

Terrestrial Ecosystem Mapping for Broadwater in the Arrow Boundary Forest District (ttem_bw)

Terrestrial Ecosystem Mapping for Bull Mountain in the Rocky Mountain Forest District (ttem_bm)

Terrestrial Ecosystem Mapping for Brewer Creek in the Rocky Mountain Forest District (ttem_br)

Predictive Ecosystem Mapping (PEM) Project Boundaries (STE_PEM_PROJECT_BOUNDARIES_SVW) contains boundaries (study areas) and attributes describing each PEM project (project level metadata), plus links to the locations of other data associated with the project (e.g., reports, polygon datasets, plotfiles, legends). This layer is derived from the [STE_TEI_PROJECT_BOUNDARIES_SP](https://catalogue.data.gov.bc.ca/dataset/1313fac7-2ea1-4c6b-995b-bd421b7ec3c6) layer by filtering on the PROJECT_TYPE attribute. Project types include: PEM, PEMWHR, PEMSDM and PEMTBT. PEM project boundaries should be used in conjunction with PEM modelled polygons which divide the landscape into units according to a variety of ecological features including climate, physiography, surficial material, bedrock geology, soils and vegetation. PEM modelled polygons can be accessed through the [Terrestrial Ecosystem Information (TEI) Data Distribution Packages](https://catalogue.data.gov.bc.ca/dataset/8fd15e4e-e7b1-4566-81d1-1ff8947bfd46). **Current version**: v12 (2026-06-22)