Table 1.  Non-Productive Forest Cover Netdowns for Seral CFLB
(Modelled after ILMB Landbase Netdown Document: Netdown #7, Peter J Lewis authored

Last modified 17/03/2019 by Ian Dennis ) 


THE_NETFOR

Value 

Description

NETDOWN: logic

04_NCRWN

Exclude:
Ownership classes not contributing to CFLB; generally excludes non-BC lands, private lands, municipal lands, and woodlots

FOwn OWNERSHIP in [ 01, 40, 41, 50, 52, 53, 67, 74, 77, 80, 81, 99 ]


21_NTA

Exclude:
Unclassified and No Typing Available

BCLCS_LV_1 = ‘U’ or 

NP_Desc = ‘NTA’

22_WATER

Exclude:
Inventory Identified water bodies

BCLCS_LV_2 = ‘W’

42_ROAD

Exclude:
Road buffer coverage

RDBUFFTYPE <> ‘ ‘ And 

RDBUFFTYPE <> ‘HOLE’


71_LOGGED_PROP

Include: 
All BCTS Cengea, RESULTS, and FTA Logged or Proposed openings. All TFL Licensee Logged or Proposed openings.  

THE_STATUS =’logged’


72_CC_GE30

Include: 
Remaining polygons with VRI crown closures greater than or equal to 30

CR_CLOSURE >= 30

FIPS Classification


If INVENTORY_STD !=’V’

NP-UWR-included

Exclude
Any NP code of:

10, alpine forest

11, NPBr (non-productive brush)

12, NP, NP forested

13, NP Burn

35, Swamp

62, Meadows

63, Open Range

NP_CODE in [ 10, 11, 12, 13, 35, 62, 63 ]

FIP non-prod

Exclude:
Non-productive forest

NP_CODE <> 0

Parks non-prod

Exclude:
Non-productive forest

INVENTORY_STD ==’I’ And 

PARKS = 'Y' And

(LOGGED = 'N' OR SITE_INDEX < 7) And

(BCLCS_LV_1 = 'U' OR BCLCS_LV_3 = 'A' OR SITE_INDEX < 7)

VRI classification


If INVENTORY_STD =’V’

50_SHE_PCT

Exclude:
Shrub and herb 

PROJ_AGE_1 >= 38 And 

(NVEG_PCT_1 + SHRB_CC + HERB_PCT ) > 60 And

CR_CLOSURE < 21

52_ROCK

Exclude:
Rock

BCLCS_LV_1 = 'N' And 

BCLCS_LV_2 = 'L' And

BCLCS_LV_4 = 'RO'

52_SI_LT8

Exclude:
Site Index less than 8  and Age less than or equal to 38

PROJ_AGE_1 >= 38 And 

SITE_INDEX < 8

54_EXP_LND

Exclude:
Exposed Land

BCLCS_LV_1 = 'N' And

BCLCS_LV_2 = 'L' And 

BCLCS_LV_4 = 'EL'

60_NV_GT50

Exclude:
Non-vegetated percentage greater than 50 percent

(NVEG_PCT_1 + NVEG_PCT_2 ) > 50

61_SI_LT7

Exclude:
Site Index less than 7

SITE_INDEX < 7

74_CFLB

Include: 
Remaining polygons as Contributing Forest Land Base



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