Appendix 7: Spatial Processing for Habitat Indicators

Dataset Name Filter Processing Source Indicator Region(s)
Agriculture Land Dispositions TENURE_PURPOSE = ‘Agricultural’ –> se type 7
TENURE_PURPOSE = ‘Grazing’ –> se type 6		 1. Apply filters
2. Assign se_type codes to each filter
3. Union inputs
4. Calculate max_type_code
5. Dissolve on max_type_code
6. Reclassify max_type_code to populate datasource and type (Unknown, Unknown (clearing), Rangeland, Cropland)
7. Intersect with watersheds to calculate % watershed affected by agriculture = agricultural area/total watershed area		 GeoYukon Agriculture Yukon
Baseline Thematic Mapping PLU_LABEL = ‘Agriculture’ –> se type 5
PLU_LABEL = ‘Range Lands’ –> se type 4		 Same as above DataBC Agriculture BC
VRI NON_PRODUCTIVE_DESCRIPTOR_CD = ‘OR’ –> se type 3
NON_PRODUCTIVE_DESCRIPTOR_CD = ‘C’ –> se type 1		 Same as above DataBC Agriculture BC
Historical Fire Polygons FIRE_YEAR >= 1964 (last 60 years) 1. Apply filters
2. Calculate YEARS_SINCE
3. Merge inputs
4. Union with burn severity polygons
5. Identity with Forest Inventory Zones to identify coastal vs interior
6. Calculate PF_FACTOR_TIME
7. Calculate PF_FACTOR_SEVERITY based on coastal vs interior
8. Calculate PF_FACTOR = PF_FACTOR_TIME * PF_FACTOR_SEVERITY
9. Dissolve on PF_FACTOR
10. Split by PF_FACTOR
11. Union the split feature classes
12. Calculate MAX_PF_FACTOR
13. Dissolve on MAX_PF_FACTOR
14. Intersect with watersheds to calculate % watershed affected by fire = (affected area * pf_factor)/total watershed area		 DataBC Fire BC
Current Fire Polygons N/A Same as above DataBC Fire BC
Fire History FIRE_YEAR >= 1964 AND FIRE_YEAR < 9900 (last 60 years) Same as above GeoYukon Fire Yukon
Burn Severity Polygons N/A Same as above DataBC Fire BC
Forest Inventory Zones FRST_NVNTE IN (‘A’, ‘B’, ‘C’) (coastal zones) Same as above DataBC Fire BC
Harvested Areas in BC (Consolidated Cutblocks) HARVEST_YEAR >= 1964 (last 60 years) 1. Apply filters
2. Calculate YEARS_SINCE_HARVEST
3. Merge inputs
4. Calculate PF_FACTOR
5. Erase reserves
6. Dissolve on PF_FACTOR
7. Split by PF_FACTOR
8. Union
9. Calculate MAX_PF_FACTOR
10. Dissolve on MAX_PF_FACTOR
11. Intersect with watersheds to calculate % watershed affected by forest harvest = (affected area * pf_factor)/total watershed area		 DataBC Harvest BC
Forest Openings N/A Same as above GeoYukon Harvest Yukon
Historic Silviculture Inventory 50K HARVEST_START >= timestamp ‘1964-01-01 00:00:00’ (last 60 years) Same as above GeoYukon Harvest Yukon
Logging History on Haida Gwaii 1962 to 2021 First_Harvest_Year >= 1964 OR Second_Harvest_Year >= 1964 (last 60 years) Same as above Gowgaia Institute Harvest Haida Gwaii
Results Inventory (for reserves) ((RES_CD IN (‘G’) and STK_ST_CD = ‘MAT’ and UPDATE_YR >= 2012) OR (RES_CD IN (‘G’) and STK_ST_CD = ‘MAT’ and RES_OBJ_CD = ‘WTR’) OR (RES_CD IN (‘G’) and STK_ST_CD in (‘NP’, ‘MAT’,‘IMM’,‘RES’) and STK_TP_CD in (‘NAT’, ‘FOR’, ‘BR’)) OR STK_ST_CD in (‘L’, ‘M’, ‘R’, ‘S’)) AND GEOM_YN = ‘Y’ 1. Apply filters
2. Dissolve		 DataBC Harvest BC
Pest Infestation Polygons PEST_SEVERITY_CODE IN (‘V’, ‘S’, ‘M’) AND PEST_SPECIES_CODE NOT LIKE ‘A%’ AND PEST_SPECIES_CODE NOT LIKE ‘N%’ AND PEST_SPECIES_CODE NOT LIKE ‘T%’ AND PEST_SPECIES_CODE NOT LIKE ‘V%’ AND CAPTURE_YEAR >= 1964 (last 60 years) 1. Apply filters
2. Union with VRI dead layer
3. Calculate YEARS_SINCE_PEST
4. Calculate PF_FACTOR_TIME
5. Calculate PF_STAND_PCT_DEAD (either from the midpoint of the severity mortality range or VRI stand_percentage_dead, whichever is greater)
6. Calculate PF_FACTOR_SEVERITY (if severity is moderate = 0.5; if severity is severe or very severe = 1)
8. Calculate PF_FACTOR = PF_FACTOR_TIME * PF_FACTOR_SEVERITY * PF_STAND_PCT_DEAD/100
9. Count overlapping features
10. Join overlapping features
11. Summarize MAX_PF_FACTOR
12. Join MAX_PF_FACTOR back to planarized features
13. Intersect with watersheds		 DataBC Insects BC
Forest Health Overview SEVERITY_CODE IN (‘V’, ‘VS’) AND DISTURBANCE_CODE NOT LIKE ‘A%’ AND DISTURBANCE_CODE NOT LIKE ‘N%’ AND DISTURBANCE_CODE NOT LIKE ‘T%’ AND DISTURBANCE_CODE NOT LIKE ‘V%’ AND SURVEY_YEAR >= 1964 (last 60 years) Same as above GeoYukon Insects Yukon
VRI Dead Layer EARLIEST_NONLOGGING_DIST_TYPE LIKE ‘I%’ AND EARLIEST_NONLOGGING_DIST_DATE IS NOT NULL Stand percentage dead used where greater than the midpoint of the severity rating range (from pest infestation polygons layer) DataBC Insects BC
Minfile Inventory Database STATUS_DS IN (‘Developed Prospect’, ‘Producer’, ‘Past Producer’) 1. Apply filters
2. Add and calculate standardized fields: se_source, se_type, commodity_d, names, status_d
3. Append BC points into one feature class
4. Convert Yukon polygons to points (inside = true)
5. Append Yukon gravel points with step 3 output
6. Append BC points (step 3) with Yukon points (step 5)
7. Intersect with watersheds to calculate number of mines per km2		 DataBC Mines BC
Minfile Production Database Spatial selection – features that do not intersect selected features from inventory dataset (row above) Same as above DataBC Mines BC
BC Aggregate Inventory Private Pits (2004) N/A Same as above British Columbia Geological Survey MapPlace Mines BC
Quartz Land Use Permits 50K N/A Same as above GeoYukon Mines Yukon
Quartz Mining Licences 50K N/A Same as above GeoYukon Mines Yukon
Quartz Leases 50K N/A Same as above GeoYukon Mines Yukon
Mineral Claims Polygon Surveyed N/A Same as above GeoYukon Mines Yukon
Coal Leases 50K N/A Same as above GeoYukon Mines Yukon
Coal Exploration Licenses 50K N/A Same as above GeoYukon Mines Yukon
Gravel Pits 25K N/A Same as above GeoYukon Mines Yukon
BC CEF Integrated Roads N/A 1. Pairwise dissolve BC roads
2. Buffer Yukon road network by 30m
3. Erase forest resource roads that are within the 30m buffers
4. Merge Yukon road network with output of step 3
5. Erase BC from step 4 (some Yukon roads overlap with BC)
6. Pairwise dissolve step 5
7. Merge YT (step 6) with BC dissolved roads (step 1)
8. Intersect with watersheds to calculate length (km) of roads per km2		 DataBC Roads BC
Yukon Road Network N/A Same as above GeoYukon Roads Yukon
Forestry Resource Roads 50K N/A Same as above GeoYukon Roads Yukon
BC CEF Human Disturbance OGC_Geophysical_1_SLU_raw N/A Add and calculate standardized fields: DISTRB_CD, DISTRB_GRP DataBC Urban & Industrial BC
BC CEF Human Disturbance OGC_Infrastructure_1_SLU_raw N/A Same as above DataBC Urban & Industrial BC
BC CEF Human Disturbance Power_1_Dams_raw N/A Same as above DataBC Urban & Industrial BC
BC CEF Human Disturbance Power_2_Transmission_Lines_GBA_raw N/A Same as above DataBC Urban & Industrial BC
BC CEF Human Disturbance Rail_and_Infrastructure_1_Railways_GBA_raw N/A Same as above DataBC Urban & Industrial BC
BC CEF Human Disturbance Rail_and_Infrastructure_2_Railways_GBA_NEBC_raw N/A Same as above DataBC Urban & Industrial BC
BC CEF Human Disturbance Rail_and_Infrastructure_3_VRI_Airports_raw N/A Same as above DataBC Urban & Industrial BC
BC CEF Human Disturbance ROW_1_Surveyed_raw N/A Same as above DataBC Urban & Industrial BC
BC CEF Human Disturbance ROW_2_Crown_raw N/A Same as above DataBC Urban & Industrial BC
BC CEF Human Disturbance Urban_1_BTM_raw N/A Same as above DataBC Urban & Industrial BC
BC CEF Human Disturbance Urban_2_VRI_raw N/A Same as above DataBC Urban & Industrial BC
Landcover circa 2000 COVTYPE = 34 Urban 1. Apply filters
2. Merge YEC_Power_Lines, YEC_Power_Distribution_Lines, Utilities_Line_50k (Transmission line)
3. Buffer step 2 power lines by 12.5m then dissolve -> power lines
4. Merge pipeline_1 and Utilities_Line_50K (pipeline)
5. Buffer step 4 pipelines by 25m then dissolve -> oil and gas infrastructure
6. Buffer track_segment_1 by 10m then merge with runways_25k and dissolve -> rail and airport
7. Merge rail and airport (step 6), oil and gas infrastructure (step 5), power lines (step 3) with urban (LCC landcover)
8. Add and calculate standardized fields: DISTRB_CD, DISTRB_GRP		 Government of Canada Urban & Industrial Yukon
Utilities_Line_50k “FEATURE” = ‘Transmission line’
“FEATURE” = ‘pipeline’		 Same as above GeoYukon Urban & Industrial Yukon
YEC_Power_Lines N/A Same as above GeoYukon Urban & Industrial Yukon
YEC_Power_Distribution_Lines N/A Same as above GeoYukon Urban & Industrial Yukon
Railroads_50K_Canvec canvec_50K_YT_Transport.gdb_segment_1 N/A Same as above GeoYukon Urban & Industrial Yukon
Runways_25k N/A Same as above GeoYukon Urban & Industrial Yukon
Canvec Pipelines 50K canvec_50K_YT_Res_MGT.gdb_1 N/A Same as above Natural Resources Canada Urban & Industrial Yukon