Wetlland classification, identification, delineation-2005

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COMPETING SERIES:These are the Alvada.Barry,Berville,Brookston,Buntingville,aackkunas Cordova. Forestci ,Jameston,Marengo,MWZove,Navan,Nosoni.Rensselaer,and Westland soils.The Alvada series (Tentative-OH)is not in the OSD file at this time.The Barry,Berville,Brookston,Cordova,Marengo,Millgrove, Navan,Rensselaer,and Westland soils have a mollic epipedon that is less than 24 inches thick.The Buntingville soils have carbonates at depths of less than 20 inches.The Clackamas and Nosoni soils lack free carbonates in the series control section. The Forestcity soils have 45 to 65 percent sand and 10 to 18 percent clay in the underlying material.The Jamestown soils formed in a firm and very firm till associated with the Iowan Erosional surface. GEOGRAPHIC SETTING:Hamel soils have concave slopes in swales,rims of closed depressions,foot and toe slopes,and upper drainageways below sloping to very steep slopes.Slope gradients are 1 to 4 percent.Hamel soils formed in slope colluvium and glacial till of Late Wisconsinan Age.Mean annual air temperature is about 45 to 48 degrees F.Mean annual precipitation is about 25 to 30 inches.Frost free days range from 125 to 165.Elevation above sea level ranges from 700 to 1600 feet. GEOGRAPHICALLY ASSOCIATED SOILS:These are principally the Hayden and Lester soils.These soils are well drained and are on the higher lying,gently sloping to very steep slopes. DRAINAGE AND PERMEABILITY:Poorly drained and somewhat poorly drained.Surface runoff is low or moderately low.Permeability is moderately slow.The apparent seasonal high water table is at.5 to 1.5 feet for the poorly drained phase and 1.5 to 2.5 feet for the somewhat poorly drained phase during spring in normal years. USE AND VEGETATION:Most of this soil is cropped to corn,hay,soybeans,and small grains.However, significant areas are in pasture and forest.Native vegetation is mixed wet prairie grasses and deciduous forest. DISTRIBUTION AND EXTENT:Primarily in the southeast one-quarter of Minnesota in the timbered,hilly, "gray"till region.Moderately extensive. MLRA OFFICE RESPONSIBLE: St.Paul,Minnesota SERIES ESTABLISHED:Hennepin County,Minnesota, 1969. REMARKS: Diagnostic horizons and features recognized in this pedon are:mollic epipedon-the zone from the surface to a depth of 40 inches(Ap,A,AB and Btg1);argillic horizon-the zone from 24 to 46 inches(Btg1,Btg2,). Type location moved from Hennepin County,Mn.to Wright County,Mn., 11/96 to better exemplify the series concept. A somewhat poorly drained overwash phase is recognized that has 8 to 20 inches of colluvium over the original dark colored surface. ADDITIONAL DATA:Refer to MAES Central File Code No.785 for results of some laboratory analysis of this series.