08/28/2006 Council Packet - Laserfiche WebLink

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• • Soderville Soil Series (continued) The Ap horizon has hue of 10YR, value of 3 or 4, and chroma of 1 or 2. Undisturbed pedons have black (10YR 2/1) or very dark gray (10YR 3/1) A horizons ranging from 2 to 6 inches thick. It is fine sand or loamy fine sand. The E horizon has hue of 10YR, value of 4 to 7, and chroma of 1 to 4. It is fine sand or loamy fine sand. The Bt horizon has hue of 10YR or 7.5YR, value of 4 to 7, and chroma of 3 or 4. It is typically loamy fine sand or loamy sand, but the range includes fine sand or sand with increase of content of clay. Fine sandy loam and sandy loam are included as lamellae and total less than 3 inches in thickness. The E &Bt horizon has colors and textures similar to the E and Bt horizons. This horizon consists of multiple lamellae bands with intervening E horizons. Some pedons have a C horizon with hue of 10YR, value of 4 to 6, and chroma of 2 or 3. It is fine sand or sand. COMPETING SERIES: There are no other series in this family. GEOGRAPHIC SETTING: These soils have plane to slightly concave slopes. Slope gradients range from 0 to 3 percent. The Soderville soils formed in deep sandy eolian or outwash sediments on outwash plains. These sediments are of Wisconsin in age. Mean annual air temperature ranges from 38 to 45 degrees F. Mean annual precipitation ranges from 24 to 30 inches. Frost free days range from 90 to 145. The elevation above sea level ranges from 670 to 1450 feet. GEOGRAPHICALLY ASSOCIATED SOILS: These are the Cantlin and Zimmerman soils. The moderately well drained Cantlin soils occupy similar landscape positions, but do not have lamellae. The excessively drained Zimmerman soils occupy higher landscape positions. DRAINAGE AND PERMEABILITY: Moderately well drained. Runoff is negligible. Permeability is rapid in the upper part and moderately rapid in the lower part. Soderville soils have a perched seasonal high water table at a depth of 2.0 to 3.5 feet at some time from April to June in most years. USE AND VEGETATION: Most areas of this soil are used for cropland. Common crops are corn, small grain, and hay. Some areas are used as woodland. Common trees are jack pine, eastern white pine, red pine, and northern red oak. DISTRIBUTION AND EXTENT: East - central Minnesota. This soil is of small extent. MLRA OFFICE RESPONSIBLE: St. Paul, Minnesota. SERIES ESTABLISHED: Anoka County, Minnesota, 1972. REMARKS: Diagnostic horizons and other features recognized are: ochric epipedon - the zone from the surface to 30 inches (Ap, El, and E2 horizons); argillic horizon - the zone from 30 to 45 inches (Btl and Bt2 horizons); The Preserve Conservation Development - Restoration and Management Plan B -5