Biogeoclimatic Ecosystem Classification ( BEC ) Map

Published by the Ministry of Forests, Lands, Natural Resource Operations and Rural Development - Forest Analysis and Inventory
Licensed under Open Government License - British Columbia

The current and most detailed version of the approved corporate provincial digital Biogeoclimatic Ecosystem Classification (BEC) Zone/Subzone/Variant/Phase map (version 10, August 31st, 2016). Use this version when performing GIS analysis regardless of scale. This mapping is deliberately extended across the ocean, lakes, glaciers, etc to facilitate intersection with a terrestrial landcover layer of your choice

Data and Resources

Dataset Extent

Latitude: 47.6° to 60.7°
Longitude: -139.4° to -110.4°

Additional Information

Purpose

The GIS layer 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 Select Seed - Seed Planning Zones. As an input for Predictive Ecosystem Mapping. Reporting on the ecological representation of the Protected Areas Strategy. As a level in the classification hierarchy for Broad Ecosystem Units.

Data Quality
Lineage Statement

The Biogeoclimatic Coverage (e.g. ABEC_BC) is loaded into Oracle where it is validated before it is replicated to the LRDW.

Contact Information

NameTim Salkeld (pointOfContact)
EmailTim.Salkeld@gov.bc.ca
OrganizationMinistry of Forests, Lands, Natural Resource Operations and Rural Development
Sub-OrganizationForest Analysis and Inventory
NameAdrian Walton (pointOfContact)
EmailAdrian.Walton@gov.bc.ca
OrganizationMinistry of Forests, Lands, Natural Resource Operations and Rural Development
Sub-OrganizationForest Analysis and Inventory
NameWill Mackenzie (pointOfContact)
EmailWill.Mackenzie@gov.bc.ca
OrganizationMinistry of Forests, Lands, Natural Resource Operations and Rural Development
Sub-OrganizationForest Analysis and Inventory

Access & Security

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

Metadata Information

Record Published 2011-03-09
Record Last Modified 2017-07-13
Resource Status completed

Object Description

Object Name: WHSE_FOREST_VEGETATION.BEC_BIOGEOCLIMATIC_POLY

Short Name: BEC_POLY

Column Name Short Name Data Type Data Precision Comments
FEATURE_CLASS_SKEY FTRCLSSSK NUMBER 10 The unique key assigned to a Feature Class by the Ministry of Forests. The Feature Class Skey value for Biogeoclimatic Polygon is 435.
ZONE ZONE VARCHAR2 12 A code uniquely identifying a Biogeoclimatic Zone of interest to MOF.
SUBZONE SUBZONE VARCHAR2 9 A code uniquely identifying a Biogeoclimatic SubZone of interest to MOF. A code used to designate a division of a specific biogeoclimatic Zone; a geographic area with a fairly uniform regional climate and a typical pattern of vegetation and soils. Subzones are not unique. They are only meaningful in conjunction with a Zone.
VARIANT VARIANT VARCHAR2 3 A one digit number used to denote a division of a specific biogeoclimatic subzone; A geographic area with a more specific regional climate. A variant has a specific pattern of vegetation and soils. Variants are only meaningful within a Zon
PHASE PHASE VARCHAR2 3 A one character code used to denote an atypical area, resulting from local relief, in the regional climate of the subzones and variants. Phases are not unique. They only have meaning in combination with a specific Zone, Subzone and Variant.
NATURAL_DISTURBANCE NTRLDSTRBN VARCHAR2 12 The Natural Disturbance of interest to MOF. A code used to designate a period process or event such as insect outbreaks, fire, disease, flooding, windstorms and avalanches that cause ecosystem change and renewal. The Code values range from 1-5 inclusive.
MAP_LABEL MAP_LABEL VARCHAR2 27 A compact concatenation of the BEC attributes Zone, Subzone, Variant and Phase to create a biogeoclimatic label suitable for map labelling. This label may not include spaces, except as a spacer when a varient is not specified and a phase is specified. This label is generated by concatenating trimmed zone, subzone, varient, phase where nulls are the empty string except in the case outlined above. Unlike the BGC LABEL, the MAP LABEL varies in length from 4 to 9 characters.
BGC_LABEL BGC_LABEL VARCHAR2 27 A concatenation of the BEC attributes Zone, Subzone, Variant and Phase to create a biogeoclimatic label suitable for map labelling. This label may include spaces to buffer each portion to the specified lengths. The first four chars are the zone, next three are the sub zone followed by one character for each of the varient and phase. Unlike the MAP LABEL, the BGC LABEL will always be 9 characters long.
ZONE_NAME ZONE_NAME VARCHAR2 105 A descriptive name given to a large geographic area having similar patterns of energy flow, vegetation, and soils as a result of a broad, homogeneous macroclimate. Zone names describe the major vegetation contained within the zone.
SUBZONE_NAME SBZNNM VARCHAR2 105 A descriptive name given to a division of the biogeoclimatic zone. Subzone names define the normal regional climate for the division of a biogeoclimatic zone.
VARIANT_NAME VRNTNM VARCHAR2 60 A descriptive name given to a division of the biogeoclimatic subzone. Variant names usualy denote a location within the biogeoclimatic subzone e.g. Eastern or Okanagan areas within a subzone.
PHASE_NAME PHASE_NAME VARCHAR2 45 A descriptive name given to an atypical area, resulting from local relief, in the regional climate of the subzones and variants. Phases may denote a different type of vegetation(e.g grassland within a Douglas Fir subzone), a difference in c
NATURAL_DISTURBANCE_NAME NTRLDSTRB1 VARCHAR2 360 A full description of the Natural Disturbance.
FEATURE_AREA_SQM NUMBER 19 FEATURE_AREA_SQM is the system calculated area of a two-dimensional polygon in square meters
FEATURE_LENGTH_M NUMBER 19 FEATURE_LENGTH_M is the system calculated length or perimeter of a geometry in meters
GEOMETRY GEOMETRY SDO_GEOMETRY 1 GEOMETRY is the column used to reference the spatial coordinates defining the feature.
FEATURE_AREA FTRR NUMBER 38 Area in square meters. This value is calculated by FME during the data load; this area may contain more precision than is appropriate for the particular geometry.
FEATURE_LENGTH FTRLNGTH NUMBER 38 Length in meters. This value is calculated by FME during the data load; this length may contain more precision than is appropriate for the particular geometry.
OBJECTID OBJECTID NUMBER 38 OBJECTID is a required attribute of feature classes and object classes in a geodatabase.
SE_ANNO_CAD_DATA BLOB 4000 SE_ANNO_CAD_DATA is a binary column used by spatial tools to store annotation, curve features and CAD data when using the SDO_GEOMETRY storage data type.

Comments

No comments have been posted yet.