CANADA LAND INVENTORY LEVEL-I DIGITAL DATA
SOIL CAPABILITY FOR FORESTRY
SCALE : 1:250,000 ATTRIBUTE LENGTH: 40
PROJECTION : Lat/Long RESOLUTION : .00024414 degrees
DATUM : NAD27
ATTRIBUTE SCHEMA:
3 CLASS_A CHAR (1),
3 MODIFIER_A CHAR (1),
3 PERCENT_A CHAR (1),
3 SUBCLASS_A CHAR (3),
3 SPECIES_A1 CHAR (4),
3 SPECIES_A2 CHAR (4),
3 CLASS_B CHAR (1),
3 MODIFIER_B CHAR (1),
3 PERCENT_B CHAR (1),
3 SUBCLASS_B CHAR (2),
3 SPECIES_B1 CHAR (4),
3 SPECIES_B2 CHAR (4),
3 CLASS_C CHAR (1),
3 MODIFIER_C CHAR (1),
3 PERCENT_C CHAR (1),
3 SUBCLASS_C CHAR (2),
3 SPECIES_C1 CHAR (4),
3 SPECIES_C2 CHAR (4),
NOTE: THIS COVERAGE HAS NO CAPABILITY IN WATER.
VALID CLASSES
1. NO IMPORTANT LIMITATIONS, PRODUCTIVITY GREATER THAN 111 CUBIC FEET/ACRE/YEAR.
2. SLIGHT LIMITATIONS, PRODUCTIVITY OF 91 TO 110 CUBIC
FEET/ACRE/YEAR.
3. MODERATE LIMITATIONS, PRODUCTIVITY OF 71 TO 90 CUBIC
FEET/ACRE/YEAR.
4. MODERATELY SEVERE LIMITATIONS, PRODUCTIVITY OF 51 TO 70 CUBIC FEET/ACRE/YEAR.
5. SEVERE LIMITATIONS, PRODUCTIVELY OF 31 TO 50 CUBIC
FEET/ACRE/YEAR.
6. VERY SEVERE LIMITATIONS, PRODUCTIVITY OF 11 TO 30 CUBIC
FEET/ACRE/YEAR.
7. SEVERE LIMITATIONS PRECLUDING THE GROWTH OF COMMERCIAL FORESTS.
8. SEE NOTE ON SPECIAL CASES.
VALID LIMITATION SUBCLASSES
CLIMATE
A - DROUGHT OR ARIDITY
C - A COMBINATION OF CLIMATIC FACTORS
H - LOW TEMPERATURES
U - EXPOSURE
SOIL MOISTURE
M - MOISTURE DEFICIENCY
W - EXCESSIVE MOISTURE
X - A PATTERN OF M AND W TOO INTIMATELY ASSOCIATED TO MAP SEPARATELY
Z - A PATTERN OF WET ORGANIC SOILS AND BEDROCK TOO
INTIMATELY ASSOCIATED TO MAP SEPARATELY
PERMEABILITY AND DEPTH OF ROOTING ZONE
D - PHYSICAL RESTRICTION TO ROOTING OTHER THAN BEDROCK
R - RESTRICTION TO ROOTING BY BEDROCK
Y - INTIMATE PATTERN OF SHALLOWNESS AND COMPACTION OR OTHER RESTRICTING LAYERS.
OTHER SOIL FACTORS
E - ACTIVELY ERODING SOILS
F - LOW FERTILITY
I - SOILS PERIODICALLY INUNDATED BY STREAMS OR LAKES
K - PRESENCE OF PERENNIALLY FROZEN MATERIAL
L - EXCESSIVE CALCIUM LEVELS
N - EXCESSIVE LEVELS OF TOXIC ELEMENTS
P - EXCESSIVE STONINESS
S - A COMBINATION OF SOIL FACTORS
NOTE: IN THE SPECIAL CASE WHERE CLASS_A IS CODED AS'8', THE FIRST CHARACTER OF SUBCLASS_A MAY BE CODED AS FOLLOWS:
BLANK UNMAPPED AREA
Z WATER AREA
T FOREST PARKS
O NATIONAL PARKS
B URBAN AREAS
W PROVINCIAL PARKS
NARRATIVE
IN THIS CLASSIFICATION ALL MINERAL AND ORGANIC SOILS ARE GROUPED INTO ONE OF SEVEN CLASSES BASED UPON THEIR INHERENT ABILITY TO GROW COMMERCIAL TIMBER. THE BEST LANDS OF CANADA FOR COMMERCIAL TREE GROWTH
WILL BE FOUND IN CLASS 1 AND THOSE IN CLASS 7 CANNOT BE EXPECTED TO YIELD TIMBER IN COMMERCIAL QUANTITIES; THESE REPRESENT THE EXTREMES, BECAUSE OF UNSUITABLE CLIMATE NO CLASS 1 LANDS WILL BE FOUND IN SEVERAL
REGIONS OF CANADA SNF IN CERTAIN REGIONS THE CLASS 2 AREAS WILL BE TOO SMALL TO SHOW AT THE CHOSEN SCALES OF MAPPING.
SOME OF THE IMPORTANT FACTORS ON WHICH THE CLASSIFICATION IS BASED ARE:
ALL KNOWN OR INFERRED INFORMATION ABOUT THE AREA INCLUDING SUBSOIL, SOIL PROFILE, DEPTH MOISTURE, FERTILITY, LANDFORM, CLIMATE AND VEGETATION.
ASSOCIATED WITH EACH CAPABILITY CLASS IS A PRODUCTIVITY RANGE BASED ON THE MEAN ANNUAL INCREMENT OF THE BEST SPECIES OF GROUP OF SPECIES ADAPTED TO THE SITE AT OR NEAR ROTATION AGE PRODUCTIVITY CLASSES ARE EXPRESSED IN GROSS MERCHANTABLE CUBIC FOOT VOLUME TO A MINIMUM DIAMETER OF FOUR INCHES. THINNINGS, BARK AND BRANCH WOOD ARE NOT INCLUDED. THE PRODUCTIVITY AS EXPRESSED IS THAT OF "NORMAL", I.E. FULLY-STOCKED STANDS. IT
MAY BE ASSUMED THAT ONLY GOOD MANAGEMENT WOULD HAVE PRODUCED STANDS OF THIS NATURE.
THE FOLLOWING ARE NOT CONSIDERED: LOCATION, ACCESS, DISTANCE TO MARKETS, SIZE OF UNITS, OWNERSHIP, PRESENT STATE OR SPECIAL CROPS SUCH AS CHRISTMAS TREES.
THE CLASSES ARE BASED ON THE NATURAL STATE OF THE LAND WITHOUT IMPROVEMENTS SUCH AS FERTILIZATION, DRAINAGE OR AMELIORATION PRACTICES, IT IS REALIZED THAT WITH IMPROVED FOREST MANAGEMENT THE PRODUCTIVITY MAY
CHANGE; TO THE EXTENT THAT THE LIMITATIONS SHOWN IN THE SUBSOIL MAY BE ALTERED, CLASS CHANGES MAY ALSO TAKE PLACE. HOWEVER, SIGNIFICANT CHANGES WILL ONLY BE ACHIEVED THROUGH COSTLY AND CONTINUING PRACTICES.
CLASS DESCRIPTIONS
CLASS 1 LANDS HAVING NO IMPORTANT LIMITATIONS TO THE GROWTH OF COMMERCIAL FORESTS. SOILS ARE DEEP, PERMEABLE, OF MEDIUM TEXTURE, MODERATELY WELL-DRAINED TO IMPERFECTLY DRAINED, HAVE GOOD WATER-
HOLDING CAPACITY AND ARE NATURALLY HIGH IN FERTILITY.
THEIR TOPOGRAPHIC POSITION IS SUCH THAT THEY FREQUENTLY RECEIVE SEEPAGE AND NUTRIENTS FROM ADJACENT AREAS. THEY ARE NOT SUBJECT TO EXTREMES OF TEMPERATURE OR EVAPO-TRANSPIRATION. PRODUCTIVITY WILL USUALLY BE GREATER THAN 111 CUBIC FEET PER ACRE PER YEAR. WHEN REQUIRE THIS CLASS MAY BE SUBDIVIDED ON THE BASIS OF PRODUCTIVITY INTO CLASSES: '1 ', (111 CUBIC FEET TO 130 CUBIC FEET); '1A', (131 CUBIC FEET TO 150 CUBIC FEET); '1B', (151 CUBIC FEET TO 170 CUBIC FEET); '1C', (171 CUBIC FEET TO 190 CUBIC FEET); '1D', (191 CUBIC FEET TO 210 CUBIC FEET); AND BY 20 CUBIC FOOT CLASSES THEREAFTER, AS NECESSARY, BY CODING THE APPROPRIATE ALPHABETIC CHARACTER IN THE MODIFIER POSITION.
CLASS 2 LANDS HAVING SLIGHT LIMITATIONS TO THE GROWTH OF COMMERCIAL FOREST. SOILS ARE DEEP, WELL-DRAINED, TO MODERATELY WELL-DRAINED,OF MEDIUM TO FINE TEXTURE AND HAVE GOOD WATER-HOLDING CAPACITY. THE MOST COMMON LIMITATIONS (ALL OF A RELATIVELY SLIGHT NATURE) ARE: ADVERSE CLIMATE, SOIL MOISTURE DEFICIENCY, RESTRICTED ROOTING DEPTH, SOMEWHAT LOW FERTILITY, AND THE CUMULATIVE EFFECTS OF SEVERAL MINOR ADVERSE SOIL CHARACTERISTICS. PRODUCTIVITY WILL USUALLY BE FROM 91 TO 110 CUBIC FEET/ACRE/YEAR.
CLASS 3 LANDS HAVING MODERATE LIMITATIONS TO THE GROWTH OF COMMERCIAL FORESTS. SOILS MAY BE DEEP TO SOMEWHAT SHALLOW, WELL TO IMPERFECTLY DRAINED, OF MEDIUM TO FINE TEXTURE WITH MODERATE TO GOOD WATER-HOLDING CAPACITY. THEY MAY BE SLIGHTLY LOW IN FERTILITY OR SUFFER FROM PERIODIC MOISTURE IMBALANCES. THE MOST COMMON LIMITATIONS ARE:
ADVERSE CLIMATE, RESTRICTED ROOTING DEPTH, MODERATE
DEFICIENCY OR EXCESS OF SOIL MOISTURE, SOMEWHAT LOW
FERTILITY, IMPEDE SOIL DRAINAGE, EXPOSURE (IN MARITIME
AREAS) AND OCCASIONAL INUNDATION. PRODUCTIVITY WILL
USUALLY BE FROM 71 TO 90 CUBIC FEET/ACRE/YEAR.
CLASS 4 LANDS HAVING MODERATELY SEVERE LIMITATIONS TO THE GROWTH OF COMMERCIAL FOREST.
SOILS MAY VARY FROM DEEP TO MODERATELY SHALLOW, FROM
EXCESSIVE THROUGH IMPERFECT TO POOR DRAINAGE, FROM COARSE THROUGH FINE TEXTURE, FROM GOOD TO POOR MOISTURE HOLDING CAPACITY, FROM GOOD TO POOR STRUCTURE AND FROM GOOD TO LOW NATURAL FERTILITY. THE MOST COMMON LIMITATIONS ARE:
MOISTURE DEFICIENCY OR EXCESS, ADVERSE CLIMATE,
RESTRICTED ROOTING DEPTH, POOR STRUCTURE, EXCESSIVE
CARBONATES, EXPOSURE, OR LOW FERTILITY. PRODUCTIVITY
WILL USUALLY BE FROM 51 TO 70 CUBIC FEET/ACRE/YEAR.
CLASS 5 LANDS HAVING SEVERE LIMITATIONS TO THE GROWTH OF COMMERCIAL FORESTS. SOILS ARE FREQUENTLY SHALLOW TO BEDROCK, STONEY, EXCESSIVELY OR POORLY DRAINED, OF COARSE OR FINE TEXTURE, MAY HAVE POOR MOISTURE HOLDING CAPACITY AND MAY BE LOW IN NATURAL FERTILITY. THE MOST COMMON LIMITATIONS (OFTEN IN COMBINATION: ARE: MOISTURE DEFICIENCY OR EXCESS, SHALLOWNESS TO BEDROCK, ADVERSE REGIONAL OR LOCAL CLIMATE, LOW NATURAL FERTILITY, EXPOSURE PARTICULARLY IN MARITIME AREAS, EXCESSIVE STONINESS AND HIGH LEVELS OF
CARBONATES. PRODUCTIVITY WILL USUALLY BE FROM 31 TO 50
CUBIC FEET PER ACRE PER YEAR.
CLASS 6 LANDS HAVING SEVERE LIMITATIONS TO THE GROWTH OF COMMERCIAL FORESTS.
THE MINERAL SOILS ARE FREQUENTLY SHALLOW, STONEY,
EXCESSIVELY DRAINED, OF COARSE TEXTURE AND LOW IN
FERTILITY. A LARGE PERCENTAGE OF THE LAND IN THIS CLASS
IS COMPOSED OF POORLY DRAINED ORGANIC SOILS. THE MOST
COMMON LIMITATIONS (FREQUENTLY IN COMBINATION) ARE:
SHALLOWNESS TO BEDROCK, DEFICIENCY OR EXCESS OF SOIL
MOISTURE, HIGH LEVELS OF SOLUBLE SALTS, LOW NATURAL
FERTILITY, EXPOSURE, INUNDATION AND STONINESS.
PRODUCTIVITY WILL USUALLY BE FROM 11 TO 30 CUBIC FEET/
ACRE PER YEAR.
CLASS 7 LANDS HAVING SEVERE LIMITATIONS WHICH PRECLUDE THE GROWTH OF COMMERCIAL FORESTS.
MINERAL SOILS ARE USUALLY EXTREMELY SHALLOW TO BEDROCK, SUBJECT TO REGULAR FLOODING, OR CONTAIN TOXIC LEVELS OF SOLUBLE SALTS. ACTIVELY ERODING OR EXTREMELY DRY SOILS MAY ALSO BE PLACED IN THIS CLASS. A LARGE PERCENTAGE OF THE LAND IS VERY POORLY DRAINED ORGANIC SOILS. THE MOST COMMON LIMITATIONS ARE: SHALLOWNESS TO BEDROCK, EXCESSIVE SOIL MOISTURE, FREQUENT INUNDATION, ACTIVE EROSION, TOXIC LEVELS OF SOLUBLE SALTS, AND EXTREMES OF CLIMATE OR EXPOSURE. PRODUCTIVITY WILL USUALLY BE LESS THAN 10 CUBIC FEET PER ACRE PER YEAR.
SUBCLASS DESCRIPTIONS
CLIMATE
DENOTES A SIGNIFICANT ADVERSE DEPARTURE FROM WHAT IS
CONSIDERED THE MEDIAN CLIMATE OF THE REGION, THAT IS, A
LIMITATION AS A RESULT OF LOCAL CLIMATE; ADVERSE REGIONAL CLIMATE WILL BE EXPRESSED BY THE CLASS LEVEL.
A DROUGHTY OR ARID CONDITIONS AS A RESULT OF CLIMATE.
C A COMBINATION OF MORE THAN ONE CLIMATIC FACTOR OR WHEN IT IS NOT POSSIBLE TO DECIDE WHICH OF TWO OR MORE FEATURES OF CLIMATE IS SIGNIFICANT.
H LOW TEMPERATURES, THAT IS TOO COLD.
U EXPOSURE.
SOIL MOISTURE
DENOTES A SOIL MOISTURE CONDITION LESS THAN OPTIMUM FOR THE GROWTH OF COMMERCIAL FORESTS BUT NOT INCLUDING INUNDATION.
M SOIL MOISTURE DEFICIENCY.
W SOIL MOISTURE EXCESS.
X A PATTERN OF 'M' AND 'W' TOO INTIMATELY ASSOCIATED TO MAP SEPARATELY.
Z A PATTERN OF WET ORGANIC SOILS AND BEDROCK TOO INTIMATELY ASSOCIATED TO MAP SEPARATELY.
PERMEABILITY AND DEPTH OF ROOTING ZONE
DENOTES LIMITATIONS OF SOIL PERMEABILITY OR PHYSICAL
LIMITATION TO ROOTING DEPTH.
D PHYSICAL RESTRICTION TO ROOTING BY DENSE OR CONSOLIDATED LAYERS, OTHER THAN BEDROCK.
R RESTRICTION OF ROOTING ZONE BY BEDROCK.
Y INTIMATE PATTERN OF SHALLOWNESS AND COMPACTION OR OTHER RESTRICTING LAYERS.
OTHER SOIL FACTORS
DENOTES FACTORS OF THE SOIL WHICH, INDIVIDUALLY OR IN
COMBINATION, ADVERSELY AFFECT GROWTH.
E ACTIVELY ERODING SOILS.
F LOW FERTILITY.
I SOILS PERIODICALLY INUNDATED BY STREAMS OR LAKES.
K PRESENCE OF PERENNIALLY FROZEN MATERIAL.
L NUTRITIONAL PROBLEMS ASSOCIATED WITH HIGH LEVELS OF
CARBONATES.
N EXCESSIVE LEVELS OF TOXIC ELEMENTS SUCH AS SOLUBLE
SALTS.
P STONINESS WHICH AFFECTS FOREST DENSITY OR GROWTH.
S A COMBINATION OF SOIL FACTORS, NONE OF WHICH, BY
THEMSELVES WOULD AFFECT THE CLASS LEVEL BUT
CUMULATIVELY LOWER THE CAPABILITY CLASS.
EXAMPLES
THE FOLLOWING ARE ILLUSTRATIONS OF SYMBOLS WHICH WILL BE USED TO DENOTE THE CLASSES, SUBCLASSES, RATIOS AND INDICATOR SPECIES FOR ALL MAPS.
A) SINGLE CLASS WITH NO SUBCLASS AND ONE INDICATOR
SPECIES:
1*****RP
B) SINGLE CLASS WITH NO SUBCLASS AND TWO INDICATOR
SPECIES:
1*****RP**WP
C) SINGLE CLASS WITH ONE SUBCLASS AND ONE INDICATOR
SPECIES:
3**M**RP
D) SINGLE CLASS WITH TWO SUBCLASSES AND TWO INDICATOR
SPECIES:
3**RM*P***WP
E) SINGLE CLASS WITH TWO SUBCLASSES AFFECTING DIFFERENT
PARTS OF THE AREA AND FOR WHICH DIFFERENT SPECIES WILL
YIELD THE MAXIMUM COMMERCIAL VALUE:
4*6R**P*******4*4W*WS
F) A COMPLEX OF TWO CLASSES, ONE OCCUPYING 60 PERCENT OF THE AREA AND THE OTHER OCCUPYING 40 PERCENT OF THE AREA WITH SUBCLASSES AND INDICATOR SPECIES:
3*6R**P*******4*4*4RMWS
G) A COMPLEX OF THREE CLASSES WITH VARIOUS COMBINATIONS OF SUBCLASSES AND INDICATOR SPECIES:
4*6RM*WS*****2*2F*RP***6*2W*BS
NOTE: ALL ASTERISKS (*) REPRESENT BLANKS.
THE FOLLOWING POINTS SHOULD BE NOTED:
1. FOR CLASS 1 NO SUBCLASSES WILL BE SHOWN. WHEN THE
HIGHEST CAPABILITY CLASS ON THE MAP SHEET DOES NOT SHOW SUBCLASSES, REGIONAL CLIMATE WILL BE ASSUMED AS THE LIMITATION.
2. A COMPLEX MAY CONSIST OF TWO OR EVEN THREE OCCURRENCES OF THE SAME CLASS WHEN THE SUBCLASSES OR INDICATOR SPECIES ARE CHANGED.
3. IN A COMPLEX, CAPABILITY CLASSES WILL BE SHOWN IN THE
ORDER OF THEIR RELATIVE PROPORTION IN THE UNIT; THE
CAPABILITY CLASS OCCUPYING THE GREATEST PERCENTAGE OF
THE AREA OF THE UNIT WILL APPEAR FIRST AND SO ON.
4. THE SYMBOL WILL CONSIST OF:
A) A CAPABILITY CLASS FROM 1 TO 7
B) A MAXIMUM OF 3 SUBCLASSES BUT GENERALLY NOT MORE
THAN 2; IN A COMPLEX A MAXIMUM OF 2 SUBCLASSES WITH EACH SEPARATE CLASS;
C) A MAXIMUM OF 2 INDICATOR SPECIES WITH EACH
CAPABILITY CLASS; AT THE 1:250,000 SCALE GENERALLY
NO MORE THAN ONE SPECIES SHOULD BE SHOWN WITH EACH
CLASS OF A COMPLEX;
D) A MAXIMUM OF 3 CLASSES IN A COMPLEX, BUT GENERALLY
NOT MORE THAN 2, AND,
E) THE PROPORTION OF EACH CLASS OF A COMPLEX TO THE
NEAREST 10 PERCENT.
FOR FURTHER INFORMATION SEE 'THE CANADA LAND INVENTORY, LAND
CAPABILITY CLASSIFICATION FOR FORESTRY', REPORT NO. 4, 1970.
A LIST OF SPECIES CODES FOLLOWS.
CODE SPECIES
A ASPEN
Al ALDER
mAl MOUNTAIN ALDER
rAl RED ALDER
sAl SITKA ALER
spAl SPECKLED ALER
wAl WHITE ALDER
Ap APPLE
pAp PACIFIC CRAB APPLE
sAp SWEET CRAB APPLE
wAp WILD CRAB APPLE
Ar ARBUTUS
As ASH
bAs BLACK ASH
blAs BLUE ASH
gAs GREEN ASH
nAs NORTHERN RED ASH
rAs RED ASH
wAs WHITE ASH
B BIRCH
bB BLUELEAF BIRCH
sB SWEET BIRCH
wB WHITE BIRCH
awB ALASKA WHITE BIRCH
gwB GASPE WHITE BIRCH
lwB LARGE-FRUITED WHITE BIRCH
mwB MOUNTAIN WHITE BIRCH
nwB NORTHWESTERN WHITE BIRCH
wwB WESTERN WHITE BIRCH
wewB WEEPING WHITE BIRCH
waB WATER BIRCH
wiB WIRE BIRCH
yB YELLOW BIRCH
yuB YUKON BIRCH
Ba BASSWOOD
Be BEECH
Bl BLUE-BEECH
Bu BUTTERNUT
C CEDAR
eC EASTERN WHITE CEDAR
wC WESTERN RED CEDAR
yC YELLOW CEDAR
Ch CHERRY
bCh BLACK CHERRY
biCh BITTER CHERRY
cCh CHOKE CHERRY
ecCh EASTERN CHOKE CHERRY
wcCh WESTERN CHOKE CHERRY
bcCh BLAACK CHOKE CHERRY
pCh PIN CHERRY
Che CHESTNUT
Co COTTONWOOD
Cof COFFEE-TREE
Cu CUCUMBER-TREE
D DOUGLAS FIR
bD BLUE DOUGLAS FIR
Do DOGWOOD
aDp ALTERNATE-LEAF DOGWOOD
eDo EASTERN FLOWERING DOGWOOD
rDo ROUGHLEAF DOGWOOD
wDo WESTERN FLOWERING DOGWOOD
E ELM
rE ROCK ELM
sE SLIPPERY ELM
wE WHITE ELM
El ELDER
F FIR
aF AMANBILIS FIR
alF ALPINE FIR
bF BALSAM FIR
brF BBRACTED BALSAM FIR
gF GRAND FIR
G GUM
H HEMLOCK
eH EASTERN HEMLOCK
mH MOUNTAIN HEMLOCK
wH WESTERN HEMLOCK
Ha HACKBERRY
Haw HAWTHORN
bHaw BLACK HAWTHORN
cHaw COLUMBIA HAWTHORN
rHaw ROUNDLEAF HAWTHORN
Hi HICKORY
aHi ASHLEAF SHAGBARK HICKORY
bHi BITTERNUT HICKORY
mHi MOCKERNUT HICKORY
miHi MICHIGAN RED HICKORY
pHi PIGNUT HICKORY
rHi ROUNDNUT RED HICKORY
sHi SHAGBARK HICKORY
shHi SHELLBARK HICKORY
Ho HOP-TREE
Hon HONEY-LOCUST
I IRONWOOD
J JUNIPER
rJ RED JUNIPER
roJ ROCKY MOUNTAIN JUNIPER
L LARCH AND TAMARACK
aL ALPINE LARCH
tL TAMARACK
wL WESTERN LARCH
Lo BLACK LOCUST
M MAPLE
bM BROADLEAF MAPLE
blM BLACK MAPLE
dM DOUGLAS MAPLE
mM MANITOBA MAPLE
moM MOUNTAIN MAPLE
rM RED MAPLE
sM SUGAR MAPLE
siM SILVER MAPLE
stM STRIPED MAPLE
vM VINE MAPLE
Mo MOUNTAIN ASH
aMo AMERICAN MOUNTAIN ASH
sMo SHOWY MOUNTAIN ASH
Mu MULBERRY
O OAK
bO BUR OAK
blO BLACK OAK
cO CHESTNUT OAK
chO CHINQUAPIN OAK
gO GARRY OAK
nO NORHTERN PIN OAK
rO RED OAK
sO SWAMP WHITE OAK
scO SCARLET OAK
wO WHITE OAK
P PINE
jP JACK PINE
lP LODGEPOLE PINE
liP LIMBER PINE
pP PONDEROSA PINE
piP PITCH PINE
rP RED PINE
sP SHORE PINE
scP SCOTS PINE
wP WHITE PINE
ewP EASTERN WHITE PINE
wwP WESTERN WHITE PINE
whP WHITEBARK PINE
Pa PAPAW
Pl PLUM
cPl CANADA PLUM
wPl WILD PLUM
Po POPLARS IN GENERAL
A ASPEN
lA LARGETOOTH ASPEN
tA TREMBLING ASPEN
Co COTTONWOOD
bCo BLACK COTTONWOOD
eCo EASTERN COTTONWOOD
lCo LANCELEAF COTTONWOOD
nCo NARROWLEAF COTTONWOOD
pCo PLAINS COTTONWOOD
Po
bPo BALSAM POPLAR
cPo CAROLINA POPLAR
gPo GRAY POPLAR
giPo GILEAD POPLAR
lPo LOMBARDY POPLAR
sPo SILVER POPLAR
R REDBUD
S SPRUCE
bS BLACK SPRUCE
eS ENGELMANN SPRUCE
nS NORWAY SPRUCE
rS RED SPRUCE
sS SITKA SPRUCE
wS WHITE SPRUCE
weS WESTERN WHITE SPRUCE
Sa SASSAFRAS
Se SERVICEBERRY, SASKATOON, JUNEBERRY
aDe ALLEGHENY SERVICEBERRY
dSe DOWNY SERVICEBERRY
pSe PACIFIC SERVICEBERRY
rSe ROUNDLEAF JUNEBERRY
sSe SASKATOON
Su SUMAC
Sy SYCAMORE
T TULIP-TREE
W WILLOW
bW BLACK WILLOW
baW BALSAM WILLOW
beW BEBB WILLOW
cW COYOTE WILLOW
coW COULTER WILLOW
dW DUSKY WILLOW
fW FELTLEAF WILLOW
hW HOOKER WILLOW
nW NORTHEWESTERN WILLOW
pW PEACHLEAF WILLOW
paW PACIFIC WILLOW
puW PUSSY WILLOW
sW SHINING WILLOW
saW SANDBAR WILLOW
scW SCOULER WILLOW
seW SERVICEBERRY WILLOW
siW SILKY WILLOW
sitW SITKA WILLOW
wW WHIPLASH WILLOW
yW YELLOW WILLOW
Wa WALNUT
Wi WITCH-HAZEL
Y YEW
X SPECIES WHICH DO NOT WARRANT DIFFEREN-
TIATION FOR THE PURPOSE AT HAND.
sX UNDIFFERENTIATED SOFTWOOD SPECIES
hX UNDIFFERENTIATED HARDWOOD SPECIES
NOTE:
FOR COMPUTER INPUT, ALL SPECIES CODES WILL BE COMPRISED
ENTIRELY OF CAPITAL LETERS AND WILL BE LEFT JUSTIFIED WITHIN THE 4-CHARACTER SPECIES FIELD. FOR EXAMPLE, SILVER MAPLE (siM)
WILL BE CODED AS 'SIM'.
AS A CONSEQUENCE TO USING ONLY ONLY CAPITAL LETTERS, SEVERAL INSTANCES ARISE WHERE TWO DIFFERENT CODES BECOME INDISTINGUISHABLE.
THESE CASES ARE:
1. ALDER (Al) AND ALPINE LARCH (aL) BECOME 'AL'.
2. CHESTNUT OAK (cO) AND COTTONWOOD (Co) BECOME 'CO'.
3. PIN OAK (pO) AND POPLARS IN GENERAL (Po) BECOME 'PO'.
4. SLIPPERY ELM (sE) AND SERVICEBERRY (Se) BECOME 'SE'.
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