Soil Survey of McHenry County, Illinois Part I - Soil Data Mart

McHenry County, Illinois—Part I 105
Dissimilar soils:
• the poorly drained Ashkum soils in depressions and
drainageways
• the somewhat poorly drained Beecher soils in the
lower positions on the landform
• calcareous soils in positions on the landform similar
to those of the Ozaukee soil
Management
For general and detailed information about
managing this map unit, see the following sections in
Part II of this publication:
• “Agronomy” section
• “Forestland” section
• “Wildlife Habitat” section
• “Engineering” section
• “Soil Properties” section
Palms Series
Drainage class: Very poorly drained
Permeability: Moderate
Landform: Moraines, outwash plains, and stream
terraces
Parent material: Organic material over loamy deposits
Slope range: 0 to 2 percent
Taxonomic classification: Loamy, mixed, euic, mesic
Terric Medisaprists
Typical Pedon for MLRA 95B
Typical pedon of Palms muck, 0 to 2 percent slopes,
115 feet south and 1,020 feet east of the northwest
corner of sec. 15, T. 45 N., R. 4 E.
Oap—0 to 6 inches; sapric material, black (N 2.5/0)
broken face and rubbed, black (10YR 2/1) dry;
about 25 percent fiber, less than 5 percent rubbed;
moderate fine granular structure; friable; about 10
percent mineral material; neutral; clear smooth
boundary.
Oa1—6 to 10 inches; sapric material, black (N 2.5/0)
broken face and rubbed; about 7 percent fiber,
less than 5 percent rubbed; moderate fine angular
blocky structure; friable; about 15 percent mineral
material; neutral; clear smooth boundary.
Oa2—10 to 32 inches; sapric material, black (N 2.5/0)
broken face and rubbed; about 5 percent fiber,
less than 5 percent rubbed; massive; friable;
about 10 percent mineral material; neutral; clear
smooth boundary.
Cg—32 to 60 inches; 60 percent greenish gray (5G
5/1) and 40 percent gray (5Y 5/1) silty clay loam;
massive; friable; slightly alkaline.
MLRA Series Range in Characteristics
Thickness of organic deposits: 16 to 51 inches
Surface tier:
Hue—7.5YR, 10YR, or N
Value—2 or 3
Chroma—0 to 2
Subsurface tier:
Hue—7.5YR, 10YR, or N
Value—2 to 4
Chroma—0 to 3
Cg horizon:
Hue—10YR, 2.5Y, 5Y, 5GY, 5G, or N
Value—4 to 6
Chroma—0 to 3
Texture—silt loam, loam, silty clay loam, sandy
loam, clay loam, or the gravelly analogs of
these textures
Content of gravel—less than 25 percent
100A—Palms muck, 0 to 2 percent slopes
Setting
Landform: Moraines, outwash plains, and stream
terraces
Position on the landform: Depressions
Slope range: 0 to 2 percent
A typical soil series description with range in
characteristics is included, in alphabetical order, in this
section. Additional information specific to this map
unit, such as horizon depth and textures, is available
in the “Soil Properties” section in Part II of this
publication.
Composition
Palms and similar soils: 85 percent
Dissimilar soils: 15 percent
Similar soils:
• soils that have organic deposits greater than 51
inches thick
• soils in which the surface layer has a lower content
of organic matter
• soils that are sandy in the lower part of the profile
• soils that contain carbonates at or near the surface
Dissimilar soils:
• the poorly drained Drummer, Dunham, Pella, and
Selmass soils in the slightly higher positions on the
landform
Management
For general and detailed information about