Runoff Potential - BEC Unit Score (BC-CEF IAP)
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Species Common Name
Aquatic Ecosystems
Stressor Name
BEC Sensitivity Score
Specific Stressor Metric
BEC Unit Scores
Stressor Units
Unitless
Geography
British Columbia
Key Covariates and Dependencies
Portion of Non-Forested Area
Detailed SR Function Description
Biogeoclimatic Ecosystem Classification (BEC) unit sensitivity ranking from BC Cumulative Effect Framework (BC-CEF) Integrated Assessment Procedure (IAP, 2020).
A relative Biogeoclimatic Ecosystem Classification (BEC)unit sensitivity ranking as an indicator of average annual precipitation, average snowpack accumulation and persistence (Lewis et al., 2016; Smith et al. 2019), The BEC score is binned into 3 classes for the assessment unit:
1. Low (0 – 0.5)
2. Moderate (>= 0.5 – 1.5)
3. High (>= 1.5)
Interim Assessment Protocol for Aquatic Ecosystems in British Columbia – Standards for Assessing the Condition of Aquatic Ecosystems under British Columbia’s Cumulative Effects Framework. Version 1.3 (December 2020). Prepared by the Provincial Aquatic Ecosystems Technical Working Group – Ministry of Environment and Climate Change Strategy and Ministry of Forests, Lands and Natural Resource Operations and Rural Development. 51 pp.
See: https://www2.gov.bc.ca/assets/gov/environment/natural-resource-stewardship/cumulative-effects/protocols/cef-aquatic-ecosystems-protocol-dec2020.pdf
A relative Biogeoclimatic Ecosystem Classification (BEC)unit sensitivity ranking as an indicator of average annual precipitation, average snowpack accumulation and persistence (Lewis et al., 2016; Smith et al. 2019), The BEC score is binned into 3 classes for the assessment unit:
1. Low (0 – 0.5)
2. Moderate (>= 0.5 – 1.5)
3. High (>= 1.5)
Interim Assessment Protocol for Aquatic Ecosystems in British Columbia – Standards for Assessing the Condition of Aquatic Ecosystems under British Columbia’s Cumulative Effects Framework. Version 1.3 (December 2020). Prepared by the Provincial Aquatic Ecosystems Technical Working Group – Ministry of Environment and Climate Change Strategy and Ministry of Forests, Lands and Natural Resource Operations and Rural Development. 51 pp.
See: https://www2.gov.bc.ca/assets/gov/environment/natural-resource-stewardship/cumulative-effects/protocols/cef-aquatic-ecosystems-protocol-dec2020.pdf
Transferability of Function
General across British Columbia
Source of stressor Data
BC BEC Zone Units
Stressor Magnitude Data
See DataBC Catalogue: WHSE_FOREST_VEGETATION.BEC_BIOGEOCLIMATIC_POLY
Function Type
continuous
Stressor Scale
linear
Citation(s)
Interim Assessment Protocol for Aquatic Ecosystems in British Columbia – Standards for Assessing the Condition of Aquatic Ecosystems under British Columbia’s Cumulative Effects Framework. Version 1.3 (December 2020). Prepared by the Provincial Aquatic Ecosystems Technical Working Group – Ministry of Environment and Climate Change Strategy and Ministry of Forests, Lands and Natural Resource Operations and Rural Development. 51 pp.
Citation Link
File Upload
BEC Sensitivity Score.xlsx
(18.42 KB)
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Stressor Response csv data
bec_score.csv
(118 bytes)
| Raw Stressor Values | Scaled Response Values 0 to 100 | SD | low.limit | up.limit |
|---|---|---|---|---|
| 1 | 100 | 0 | 0 | 100 |
| 2 | 75 | 0 | 0 | 100 |
| 3 | 25 | 0 | 0 | 100 |
Stressor Response Chart