Table 1. Coding system for the ecological land classification for Ft. Wainwright, central Alaska, 1998.
No.
Letter
code
code
Geomorphic units (modified from Kreig and Reger 1982)
Code
Vegetation (after Viereck et al. 1992)
11
Bxw
Weathered Bedrock
0
Barren (<5% vegetated)
12
Bxr
Residual Soil over Weathered Bedrock
1
Water (<5% vegetated)
371
Ell
Lowland Loess
10
Partially Vegetated (>5, <30% cover)
372
Elu
Upland Loess
112
Closed White Spruce Forest
373
Elx
Upland Loess, frozen
113
Closed Black Spruce Forest
375
El/Bxw
Upland Loess/Weathered Bedrock
114
Closed Black SpruceWhite Spruce Forest
376
El/Es/Fp
Upland Loess/Eolian Sand/Floodplain
115
Closed SpruceTamarack Forest (not mapped)
380
Es
Eolian Sand Dunes
124
Open White Spruce Forest
385
Ell+Es+Fs+Ob
Lowland Eolian Complex
125
Open Black Spruce Forest
431
Fbr
Braided Floodplain Riverbed Deposit
127
Open Black SpruceTamarack Forest
435
Fbca
Braided Active Floodplain Riverbed Deposit
128
Open Black SpruceWhite Spruce Forest
437
Fbci
Braided Inactive Floodplain Cover Deposit
129
Open Black Spruce (South-facing)
440
Fm
Meander Floodplain, Undifferentiated
135
Black SpruceWhite Spruce Woodland
441
Fmr
Meander Floodplain Riverbed Deposit
136
Mixed Conifer Woodland
445
Fmca
Meander Active floodplain Cover Deposit
143
Closed Balsam Poplar Forest
447
Fmci
Meander Inactive Floodplain Cover Deposit
144
Closed Paper Birch Forest
451
Fpar
Abandoned Floodplain Riverbed Deposit, recent
145
Closed Quaking Aspen Forest
452
Fpac
Abandoned Floodplain Cover Deposit
146
Closed Paper BirchQuaking Aspen Forest
455
Fpac-n
Abandoned Floodplain Cover Deposit, recent
147
Closed Quaking AspenBalsam Poplar Forest (not mapped)
458
Fpa-g
Abandoned Floodplain--Gravel
151
Open Paper Birch Forest
461
Fpac + Off
Abandoned Floodplain Cover + Organic Fen
154
Open Paper BirchQuaking Aspen Forest
465
Fpac + Obc
Abandoned Floodplain Cover + Organic Bog
165
Broadleaf Scrub Woodland
480
Fh
Headwater Floodplain, Small Watercourse
171
Closed SprucePaper Birch Forest
501
Ffrb
Alluvial Fan Abandonod Riverbed Deposit
173
Closed SprucePaper BirchQuaking Aspen Forest
505
Ffcb/Ffr
Alluvial Fan Abandoned Cover Deposit
174
Closed Quaking Aspen-Spruce Forest
506
Ffct/Ffr
Dissected Alluvial Fan Cover Deposit
175
Closed Balsam PoplarWhite Spruce Forest
507
Ffcb + Of
Alluvial Fan Abandoned Cover + Organic Fen
181
Open SprucePaper Birch Forest
508
Ffcb + Ob
Alluvial Fan Abandoned Cover + Organic Bog
182
Open Quaking AspenSpruce Forest
520
Fsl
Lowland Retransported Deposits
184
Open SpruceBalsam Poplar Forest (not mapped)
523
Fsu
Upland Retransported Deposits
211
Open Black Spruce Dwarf Tree Scrub
705
GForb
Glaciofluvial Outwash Abandoned Riverbed
216
Black Spruce Dwarf Tree Woodland (not mapped)
715
GFocb
Glaciofluvial Outwash Abandoned Cover
221
Closed Tall Willow Shrub
716
Gfocb + Of
Glaciofluvial Outwash + Organic Fen
222
Closed Tall Alder Shrub
717
Gfocb + Ob
Glaciofluvial Outwash + Organic Bog
224
Closed Tall AlderWillow Shrub
718
GFoct
Dissected Glaciofluvial Outwash Cover
231
Open Tall Willow Shrub (not mapped)
719
Gfoct + Ob
Dissected Glaciofluvial Outwash Cover + Organic Bog
232
Open Tall Alder Shrub
750
L
Lacustrine
236
Open Tall Shrub Swamp
780
H
Human-made Deposits
243
Closed Low Shrub BirchWillow Shrub (not mapped)
835
Osp
Peat Swamp Margin
246
Closed Low Shrub BirchEricaceous Shrub
843
Ofd
Drainage (or Channel) Fen
249
Closed Low Scrub
844
Ofcs
Collapse Scar Fen
252
Open Low Mixed Shrub Sedge Tussock Bog
854
Ofsh/L
Shore Fent Lacustrine
253
Open Low Mesic Shrub BirchEricaceous Shrub
874
Obc/Fp
Collapse Scar Bog/Floodplain
255
Open Low Shrub BirchEricaceous Shrub Bog (not mapped)
876
Obf/Fp
Flat Bog/Floodplain
259
Open Low Scrub (Post Burn, Disturbance)
884
Obpp/Fp
Peat Plateau Bog (birch forest)/Floodplain
262
Open Low WillowGraminoid Shrub Bog
885
Obs/L
Shore Bog (nonfloating)/Lacustrine
263
Open Low SweetgaleGraminoid Bog
888
Obv
Veneor Bog
273
DryasLichen Dwarf Shrub Tundra
304
Midgrass Shrub
311
Bluejoint Meadow
Waterbodies
906
Lower Perennial River, Nonglacial
336
Fresh Sedge Marsh
907
Lower Perennial River. Glacial
339
Subarctic Lowland SedgeHerb Bog Meadow
911
Upper Perennial River, Nonglacial
340
Subarctic Lowland Sedge Wet Meadow
917
Spring
342
Subarctic Lowland Sedge Bog Meadow (not mapped)
927
Deep Isolated Lake, Bedrock
343
Subarctic Lowland SedgeMoss Bog Meadow
943 Lsir
Shallow Isolated Ponds, Riverine
366
Fresh Herb Marsh (not mapped)
944
Shallow Isolated Ponds, Thaw
368
Subarctic Lowland Herb Bog Meadow
994 Whe
Water-filled Excavation
386
Fresh Pondweed
415
Lowland Eolian Complex
420
Riverine Complex
435
Slope Drainage Complex
471
Paludification Complex, (Wet ForbSedge Fen)
524
Thermokarst Complex, Open BirchShrub BirchFen
525
Thermokarst Complex, Open BirchShrub SwampFen
531
Thermokarst Complex, Black SpruceCollapse Scar Bog
533
Thermokarst Complex, Closed Paper BirchCollapse Scar bog
534
Thermokarst Complex, Mixed SprucePaper BirchBog
536
Thermokarst Complex, Open BirchShrubBog
7
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