Foothills Fescue Range Plant Community Guide - Sustainable ...

textural subgroup (Fig. 4). Sa does not apply to duned landscapes. Applies to the soil
series Ardenode (ARE) and Highwood (HIW).
Choppy Sandhills (CS):
Applies to all non-saline and non-gleyed Chernozemic soils (soils with A, B and C
horizons), and non-saline and non-gleyed Regosolic soils (soils that lack a B horizon >5
cm, and may lack an A horizon) with soil textures in the very coarse (loamy sand)
textural subgroup. CS applies to soils that occur on duned landscapes, including Dl1,
D1m, D1h, D2l, D2m and D2h in AGRASID 3.0. Applies to the soil series Ardenode
(ARE).
Gravel (Gr):
Applies to any soil with less than 20 cm of a surface mantle of any textural class over
very gravelly or very cobbly (>50% gravel or cobbles) material. Applies to the Rinard
(RND) and Bow Valley (BOV) soil series.
Shallow to Gravel (SwG):
Applies to any soil with 20 to 50 cm of a surface mantle of any textural class overlying
gravelly or very gravelly or cobbly to very cobbly (>20% gravel or cobbles) material.
Applies to the Blackfoot (BFT), Rockford (RFD) and Rosebud (RSB) soil series.
Fig. 4. Soil textures and their relationship to ecological/range sites.
% Clay
100
90
80
70
60
50
40
30
20
10
SiC
Si
SiCL
HC
SiL
C
Ecological/Range Site Textural Sub-group
Clayey (Cy)
Very fine
Fine
Loamy (Lo)
Sandy (Sy)
Moderately fine
Medium
Moderately coarse
Sands (Sa), Choppy Sandhills (CS) Very coarse
CL
L
SC
SCL
10 20 30 40 50 60 70 80 90 100
% Sand
SL
Textural Class
HC Heav y Clay
C Clay
SiC Silty Clay
SC Sandy Clay
SiCL Silty Clay Loam
CL Clay Loam
SCL Sandy Clay Loam
L Loam
SiL Silt Loam
Si Silt
SL Sandy Loam
LS Loamy Sand
S Sand
LS S
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