Wetlland classification, identification, delineation-2005

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COMPETING SERIES:These are the Cohn Comfrey,DeM Gielow,James Canyon,Keddie.Kimmerliai Korner.McClave.Peoh,Romnell.Shandeo,and Wenas series.Coland and Comfrey soils do not have rock fragments in their control sections.In addition,Coland soils are deeper to free carbonates.Delft soils are poorly drained,are not in closed depressions,have prismatic structure in subsoil,and do not have tongues of the A horizon in the Bg horizon.Gielow,James Canyon,Keddie,Kimmerling,Konner,McClave,Peoh,and Wenas soils are drier in the soil moisture control section during the 120 days following the summer solstice.Romnell soils contain appreciable amounts of gypsum in their sola.Shandep soils do not have tongues of A horizon in the Bg horizon and have a coarse textured 2C horizon. GEOGRAPHIC SETTING:Glencoe soils typically are in closed depressions or low gradient swales within the Des Moines lobe of the Late Wisconsinan glaciation.The Glencoe soils are formed in loamy colluvial sediments and loamy glacial till.Mean annual temperature ranges from 45 to 52 degrees F.Mean annual precipitation ranges from 25 to 32 inches.The frost free days range from 124 to 172.The elevation above sea level range from 700 to 1600 feet. GEOGRAPHICALLY ASSOCIATED SOILS:These are the Canisteo.Clarion.Hares,Nicolle and Webster soils.The well drained Clarion soils are on the sloping uplands.Somewhat poorly drained Nicollet and the poorly drained Canisteo,Webster,and Harps soils are on nearly level to gently undulating slopes.All the above have mollic epipedons less than 24 inches thick In addition,the Canisteo and Harps soils contain free carbonates throughout. The Glencoe soils also are associated with the Hayden and Lester soils and their respective topographic associates in some places. DRAINAGE AND PERMEABILITY:Very poorly drained.Surface runoff is negligible.Permeability is moderate or moderately slow. USE AND VEGETATION:Mostly drained and cropped to corn and soybeans.Native vegetation was a wet site plant community of the tall grass prairie plant formation. DISTRIBUTION AND EXTENT: South-central Minnesota and possibly north-central Iowa.Large extent. MLRA OFFICE RESPONSIBLE: St.Paul,Minnesota SERIES ESTABLISHED:Dakota County,Minnesota, 1945. REMARKS: Diagnostic horizons and features recognized in this pedon are:mollic epipedon the zone from the surface to a depth of 35 inches(Ap,A,and ABg horizons);cumulic subgroup-mollic epipedon is more than 24 inches thick;aquic moisture regime-low chroma immediately below the A horizons.