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Natural Disturbance Type Map

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

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 11, August 10th, 2018) (Data Catalog record: https://catalogue.data.gov.bc.ca/dataset/f358a53b-ffde-4830-a325-a5a03ff672c3).

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

Data and Resources

Dataset Extent

Latitude: 47.6° to 60.7°
Longitude: -139.4° to -110.4°
View in iMapBC

Additional Information

Purpose

Natural disturbance type classification 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.

Contact Information

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 2020-12-07
Record Last Modified 2021-02-04
Resource Status completed
Spatial DataSDO_GEOMETRY

Object Description

Object Name: WHSE_FOREST_VEGETATION.BEC_NATURAL_DISTURBANCE_SV

Short Name: BECNATURAL

Column Name Short Name Data Type Data Precision Comments
FEATURE_CLASS_SKEY FC_SKEY 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.
NATURAL_DISTURBANCE_TYPE_CODE NTRL_DSTRD VARCHAR2 12 The Natural Disturbance Type Code as defined in the Provincial Biodiversity Guidebook (1995). The 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. The code values range from 1-5 inclusive.
NATURAL_DISTURBANCE_TYPE_DESC NTRL_DSTRC VARCHAR2 360 A full description of the Natural Disturbance Type Code
FEATURE_AREA_SQM FEAT_AREA NUMBER 19 The system calculated area of a two-dimensional polygon in square meters
FEATURE_LENGTH_M FEAT_LEN NUMBER 19 The system calculated length or perimeter of a geometry in meters
SHAPE SHAPE SDO_GEOMETRY 64 The column used to reference the spatial coordinates defining the feature.
OBJECTID OBJECTID NUMBER 38 A required attribute of feature classes and object classes in a geodatabase.
SE_ANNO_CAD_DATA BLOB 4000 A binary column used by spatial tools to store annotation, curve features and CAD data when using the SDO_GEOMETRY storage data type.