Predictive Ecosystem Mapping (PEM) Detailed Polygons with Short Attribute Table - 20,000 Spatial View

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Published by the Ministry of Environment and Climate Change Strategy - Knowledge Management
Licensed under Access Only

This dataset is not currently available in the BCGW but may be downloaded in geodatabase format. Please refer to: Terrestrial Ecosystem Information (TEI) Data Distribution Packages.
PEM_20K contains 1 to 20,000 PEM polygons with key and amalgamated (concatenated) attributes derived from the Resource Inventory Standards Committee (RISC) standard attributes. PEM divides the landscape into units according to a variety of ecological features including climate, physiography, surficial material, bedrock geology, soils and vegetation. PEM uses a modeling approach to ecosystem mapping, whereby existing knowledge of ecosystem attributes and relationships are used to predict ecosystem representation in the landscape. This layer is derived from the STE_TEI_ATTRIBUTE_POLYS_SP layer by filtering on the PROJECT_TYPE and PROJECT_MAP_SCALE attributes.

Data and Resources

Dataset Extent

Latitude: 48.0° to 60.0°
Longitude: -139.5° to -113.5°

Additional Information

Purpose

PEM is the stratification of a landscape into map units, according to a combination of ecological features, primarily climate, physiography surficial material, bedrock geology, soil, and vegetation. PEM provides: a biological and ecological framework for land management; a means of integrating abiotic and biotic ecosystem components on one map; basic information on the distribution of ecosystems from which management interpretations (e.g., broad-scale landscape planning, site-specific interpretations) can be developed; a basis for rating values of resources or indicating sensitivities in the landscape; a historic record of ecological site conditions that can be used as a framework for monitoring ecosystem response to management; and a demonstration tool for portraying ecosystem and landscape diversity. This dataset should be used and interpreted in consultation with a qualified ecosystem and/or terrain mapper.

Lineage Statement

Varies between projects. Data is from individual inventories conducted across the province from the late 1990s to present. Some projects have undergone several phases of data conversion including different data formats (e.g., DGN to ArcInfo to Geodatabase) and different vintages of inventory standards.

More Information

Contact Information

NameTerrestrial Ecosystem Information (TEI) Mailbox (pointOfContact)
EmailTEI_Mail@gov.bc.ca
OrganizationMinistry of Environment and Climate Change Strategy
Sub-OrganizationKnowledge Management

Access & Security

Who can view this dataset? Public
Who can download this dataset?Public

Metadata Information

Record Published 2014-12-15
Record Last Modified 2019-08-28
Resource Status onGoing

Object Description

Object Name: WHSE_TERRESTRIAL_ECOLOGY.STE_PEM_20K_POLYS_SVW

Short Name: STPM20KPLS
Comments: STE_PEM_20K_POLYS_SVW contains summarized attributes and ecosystem polygons for Predictive Ecosystem Mapping (PEM) projects completed at a scale of 1:20000. The summarized attributes are concatenated from the RISC (Resources Information Standards Committee) table of polygon attributes (Long Table). Ecosystem mapping stratifies the landscape into map units, according to a combination of ecological features, primarily climate, physiography, surficial material, bedrock geology, soil, and vegetation. PEM uses a modeling approach to ecosystem mapping, whereby existing knowledge of ecosystem attributes and relationships are used to predict ecosystem representation in the landscape. Typical polygon attributes include Ecosection, BGC unit, Ecosystem unit and structural stage. PEM relies heavily on existing data and mapping information which may include the Bioterrain Mapping methodology, the Terrain Classification, Biogeoclimatic (BGC) Ecosystem Classification and Ecoregion Classification systems for B.C. PEM is also used in conjunction with Vegetation Resource Inventory Mapping (VRI) and forms a common data input for Sensitive Ecosystems Inventory (SEI), and Wildlife Habitat Ratings (WHR) projects. As such some PEM data shown in this layer share common line work and attributes with SEI, TEM, WHR and VRI mapping products. This dataset should be used and interpreted in consultation with a qualified ecosystem and/or terrain mapper. This layer is derived from the STE_TEI_ATTRIBUTE_POLYS_SP layer by filtering on the PROJECT_TYPE and PROJECT_MAP_SCALE attributes.

Column Name Short Name Data Type Data Precision Comments
TEIS_ID TEIS_ID NUMBER 10 TEIS ID (aka TEIS_ID) contains the unique identifier (PK) for the TEIS Polygon Attributes detailed geometry. This key may change between snapshots of the database. For example: TBT_4741_082M066_124975.
PROJECT_POLYGON_IDENTIFIER PRJCTPLGND VARCHAR2 50 PROJECT POLYGON IDENTIFIER (aka PROJPOLYID) contains a polygon identifier for linking attribute data to spatial data for TER, TEM, PEM and SEI data. It is not provincially unique. This field can be used for linking foreign key data (user defined fields, report references, etc.). It contains the attribute previously known as TER_TAG and ECP_TAG. For example: 12345, X17YK4.
BUSINESS_AREA_PROJECT_ID BSNSSRPRJC NUMBER 5 BUSINESS AREA PROJECT ID (aka BAPID) contains a numeric project identifier assigned by the Ministry of Environment, Ecosystem Information Section. The project BAPID is used to identify all information relating to a project and is the unique identifier (PK) for the project and is the linking key used to join or relate other TEIS data sets such as the TEIS Polygon Attribute. For example: 1234.
MODIFICATION_DATE MDFCTNDT DATE 7 MODIFICATION DATE (aka MOD_DATE) contains the year, month and day that the attribute data or the corresponding spatial data (i.e. polygon boundaries) for the given data record was last altered in any way. For example: 3/28/2001.
PROJECT_TYPE PRJCTTP VARCHAR2 9 PROJECT TYPE (aka PROJ_TYPE) contains a 3-9 letter code indicating the specific type of mapping and attributes gathered for the project. For example: TEM, PEM, SEI, TIM, TSM, TBT, TEMSEI, TEMNSS and PRETEM.
PROJECT_NAME PRJCTNM VARCHAR2 100 PROJECTNAME (aka PROJ_NAME) contains the common name of the project, usually a well known local place or feature. For example: Penticton Cr, and Kelowna South Slopes.
PROJECT_MAP_SCALE PRJCTMPSCL NUMBER 10 PROJECT MAP SCALE (aka PROJ_SCALE) contains the scale of the project maps produced. For example: 10000, 20000, 50000, and 100000.
ECOSECTION_LABEL CSCTNLBL VARCHAR2 3 ECOSECTION_LABEL (aka ECO_SEC) contains the three-letter code for the Ecosection in which the polygon occurs. For example: SOK, NKM.
BIOGEOCLIMATIC_LBL BGCLMTCLBL VARCHAR2 10 BIOGEOCLIMATIC LBL (aka BGC_LBL) contains a string of numeric and character codes indicating the Biogeoclimatic unit in which the polygon occurs. This field is a concatenation of polygon attributes from the RISC Long Table including Biogeoclimatic zone, subzone, variant and phase. For example: ESSFwcp2a.
ECOSYSTEM_LBL_CPNT_1 CSSTMLBLCP VARCHAR2 26 ECOSYSTEM LBL CPNT 1 (aka ECOLBL_1) contains a string of numeric and character codes representing the ecosystem label for ecosystem component 1. This field is a concatenation of polygon attributes from the RISC Long Table including decile, ecosystem unit, site modifier, structural stage, stand composition and seral community codes. For example: 10CD[08]ac3bM:sa.
ECOSYSTEM_DECILE_CPNT_1 CSSTMDCLCP NUMBER 38 ECOSYSTEM DECILE CPNT 1 (aka SDEC_1) contains a number from 4-10 indicating the proportion of the polygon covered by ecosystem component 1. Enter zero (0) when not recorded. For example: 10.
SITE_SERIES_LBL_CPNT_1 STSRSLBLCP VARCHAR2 11 SITE SERIES LBL CPNT 1 (aka SITES_LBL1) contains a string of numeric and character codes indicating the type of plant community present in ecosystem component 1. This field is a concatenation of polygon attributes from the RISC Long Table including site series numbers and seral community type codes. Codes are unique within individual Biogeoclimatic subzones and variants. For example: [08]:sa.
SITE_SERIES_MAP_CDE_LBL_CPNT_1 STSRSMPCDL VARCHAR2 11 SITE SERIES MAP CDE LBL CPNT 1 (aka SITEMCLBL1) contains a string of character codes indicating the type of plant community present in ecosystem component 1. This field is a concatenation of polygon attributes from the RISC Long Table including site series mapcodes and seral community types. Codes are unique within individual Biogeoclimatic subzones and variants. For example: DS:sa.
STRUCTURAL_STAGE_LBL_CPNT_1 STRCTRLSTG VARCHAR2 3 STRUCTURAL STAGE LBL CPNT 1 (aka STRCTLBL_1) contains a string of numeric and character codes indicating the structure and composition of the vegetation cover for ecosystem component 1. This field is a concatenation of polygon attributes from the RISC Long Table including structural stage and stand composition codes. For example: 7mC.
ECOSYSTEM_LBL_CPNT_2 CSSTMLBLC1 VARCHAR2 26 ECOSYSTEM LBL CPNT 2 (aka ECOLBL_2) contains a string of numeric and character codes representing the ecosystem label for ecosystem component 2. This field is a concatenation of polygon attributes from the RISC Long Table including decile, ecosystem unit, site modifier, structural stage, stand composition and seral community codes. For example: 5DS[07]g3B:sa.
ECOSYSTEM_DECILE_CPNT_2 CSSTMDCLC1 NUMBER 38 ECOSYSTEM DECILE CPNT 2 (aka SDEC_2) contains a number from 0-5 indicating the proportion of the polygon covered by ecosystem component 2. Enter zero (0) when not recorded. For example: 4.
SITE_SERIES_LBL_CPNT_2 STSRSLBLC1 VARCHAR2 11 SITE SERIES LBL CPNT 2 (aka SITES_LBL2) contains a string of numeric and character codes indicating the type of plant community present in ecosystem component 2. This field is a concatenation of polygon attributes from the RISC Long Table including site series numbers and seral community type codes. Codes are unique within individual Biogeoclimatic subzones and variants. Examples include: GRsa1:sa
SITE_SERIES_MAP_CDE_LBL_CPNT_2 STSRSMPCD1 VARCHAR2 11 SITE SERIES MAP CDE LBL CPNT 2 (aka SITEMCLBL2) contains a string of character codes indicating the type of plant community present in ecosystem component 2. This field is a concatenation of polygon attributes from the RISC Long Table including site series mapcodes and seral community types. Codes are unique within individual Biogeoclimatic subzones and variants. For example: GRsa1:sa
STRUCTURAL_STAGE_LBL_CPNT_2 STRCTRLST1 VARCHAR2 3 STRUCTURAL STAGE LBL CPNT 2 (aka STRCTLBL_2) contains a string of numeric and character codes indicating the structure and composition of the vegetation cover for ecosystem component 2. This field is a concatenation of polygon attributes from the RISC Long Table including structural stage and stand composition codes. For example: 3bM.
ECOSYSTEM_LBL_CPNT_3 CSSTMLBLC2 VARCHAR2 26 ECOSYSTEM LBL CPNT 3 (aka ECOLBL_3) contains a string of numeric and character codes representing the ecosystem label for ecosystem component 3. This field is a concatenation of polygon attributes from the RISC Long Table including decile, ecosystem unit, site modifier, structural stage, stand composition and seral community codes. For example: 2CF[00]2b.
ECOSYSTEM_DECILE_CPNT_3 CSSTMDCLC2 NUMBER 38 ECOSYSTEM DECILE CPNT 3 (aka SDEC_3) contains a number from 4-10 indicating the proportion of the polygon covered by ecosystem component 3. Enter zero (0) when not recorded. For example: 0.
SITE_SERIES_LBL_CPNT_3 STSRSLBLC2 VARCHAR2 11 SITE SERIES LBL CPNT 3 (aka SITES_LBL3) contains a string of numeric and character codes indicating the type of plant community present in ecosystem component 3. This field is a concatenation of polygon attributes from the RISC Long Table including site series numbers and seral community type codes. Codes are unique within individual Biogeoclimatic subzones and variants. Examples include: GRsa1:sa
SITE_SERIES_MAP_CDE_LBL_CPNT_3 STSRSMPCD2 VARCHAR2 11 SITE SERIES MAP CDE LBL CPNT 3 (aka SITEMCLBL3) contains a string of character codes indicating the type of plant community present in ecosystem component 3. This field is a concatenation of polygon attributes from the RISC Long Table including site series mapcodes and seral community types. Codes are unique within individual Biogeoclimatic subzones and variants. For example: GRsa1:sa
STRUCTURAL_STAGE_LBL_CPNT_3 STRCTRLST2 VARCHAR2 3 STRUCTURAL STAGE LBL CPNT 3 (aka STRCTLBL_3) contains a string of numeric and character codes indicating the structure and composition of the vegetation cover for ecosystem component 3. This field is a concatenation of polygon attributes from the RISC Long Table including structural stage and stand composition codes. For example: 7mC.
THEME_DISPLAY_1 THMDSPL1 VARCHAR2 20 THEME DISPLAY 1 (aka THEME_1) is a field created to hold an alphanumeric code representing a theme derived from terrain and ecosystem attribute(s). For example: low.
THEME_DISPLAY_2 THMDSPL2 VARCHAR2 20 THEME DISPLAY 2 (aka THEME_2) is a field created to hold an alphanumeric code representing a theme derived from terrain and ecosystem attribute(s). For example: 123.
THEME_DISPLAY_3 THMDSPL3 VARCHAR2 20 THEME DISPLAY 3 (aka THEME_3) is a field created to hold an alphanumeric code representing a theme derived from terrain and ecosystem attribute(s). For example: poor condition.
POLYGON_COMMENTS PLGNCMMNTS VARCHAR2 254 POLYGON COMMENTS (aka POLY_COM) contains notes or comments for the polygon. For example: The polygon contained a salt lick at the southeast end, near the pond; Original Project: FRBC_3b.
MAP_LEGEND_DESCRIPTION MPLGNDDSCR VARCHAR2 140 MAP LEGEND DESCRIPTION (aka LEGEND_COM) contains a description of the generic map legend found at MAP LEGEND DATA DOWNLOAD LINK (MAP_LEG). For example: Information on how to interpret terrain labels is available at the following site.
MAP_LEGEND_DATA_DOWNLOAD_LINK MPLGNDDTDW VARCHAR2 100 MAP LEGEND DATA DOWNLOAD LINK (aka LEGEND_URL) contains the URL for the website or FTP site where the generic map legend is available. For example: http://a100.gov.bc.ca/pub/acat/public/viewReport.do?reportId=1531.
POLYGON_STABILITY_CLASS_TYPE PLGNSTBLTC VARCHAR2 1 POLYGON STABILITY CLASS TYPE (aka PSTBCLS_TP) contains a one character code indicating the classification system used to classify slope stability for the polygon. For example: R (Reconnaissance), D (Detailed), or E (Es).
ERROR_SUMMARY RRRSMMR VARCHAR2 500 ERROR SUMMARY (aka ERROR_SUM) contains a list of attribute code and geometry errors found by automated data quality control tools including errors relating to invalid codes, values outside a valid range, cross field (paired attribute) rules, and geometry. Erroneous attribute entries are in ().
FEATURE_CODE FTRCD VARCHAR2 10 FEATURE CODE (aka FEATURE CODE, FCODE) contains a value based on the Canadian Council of Surveys and Mapping's (CCSM) system for classification of geographic features.
GEOMETRY GEOMETRY SDO_GEOMETRY 64 GEOMETRY is the column used to reference the spatial coordinates defining the feature.
FEATURE_AREA_SQM FEAT_AREA NUMBER 19
FEATURE_LENGTH_M FEAT_LEN NUMBER 19
OBJECTID OBJECTID NUMBER 38 OBJECTID is a required attribute of feature classes and object classes in a geodatabase.
SE_ANNO_CAD_DATA BLOB 4000