Wetland classification, identification, delineation-2004

Home Browse Search

� Of�licial Series Dcscription - ANOKA S�ries Pa�� 1 u1�3 � L�)�;AT IOPI A�lOKf�. MD!�W� ' Establisheci Series Rcv. KDS-AGG OS/2001 � ANOKA SERIES 1 The Anoka series consists of ve dee , well drained soils that formed in sandy and coarse-loam lacial rY P Y g ' outwash or lacustrine sediments on outwash plains, stream terraces, and lake plains. These soils have moderate permeability. Slopes range from 0 to 18 percent. Mean annual precipitation is about 28 inches, and mean annual air temperature is about 44 degrees F. ' TAXONOMIC CLASS: Coarse-loamy, mixed, superactive, frigid Lamellic Hapludalfs ' TYPICAL PEDON: Anoka very fine sand with a slightly convex slope of 2 percent on an outwash plain at an elevation of 930 feet in a cultivated field. (Colors are for moist soil unless otherwise stated.) ' Ap--O to 10 inches; dark grayish brown (l 0YR 4/2) very fine sand, light brownish gray (1 OYR 6/2) dry; massive; loose; moderately acid; abrupt smooth boundary. (6 to 12 inches thick) ' E1--10 to 26 inches; grayish brown(lOYR 5/2) very fine sand; few masses of light brownish gray (lOYR 6/2); single grain; loose; moderately acid; clear wavy boundary. (4 to 16 inches thick) � E2--26 to 36 inches; dark grayish brown (lOYR 4/2) very fine sand; few masses of light brownish gray (lOYR 6/2); single grain; loose; moderately acid; abrupt smooth boundary. (6 to 20 inches thick) � Bt--36 to 43 inches; brown (lOYR 4/3) loamy very fine sand; few masses of yellowish brown (lOYR 5/4); few masses of light brownish gray (lOYR 6/2) uncoated sand grains; massive; hard, friable; common clay bridges between sand grains; strongly acid; clear wavy boundary. (4 to 14 inches thick) , (E&Bt)1--43 to 56 inches; grayish brown(lOYR 5/2), brown (lOYR 5/3), and yellowish brown (l 0YR 5/4) very fine sand; single grained (E); brown (lOYR 4/3) to yellowish brown (lOYR 5/4) very fine ' sandy loam lamellae 1 to 4 inches thick (Bt); massive; friable; common clay bridges between sand grains; moderately acid; abrupt wavy boundary. (12 to 30 inches thick) ' (E&Bt)2--56 to 70 inches; brown (lOYR 5/3) very fine sand (E); single grain; loose; a few 1/8- to 1/4- inch dark yellowish brown (lOYR 4/4) loamy very fine sand lamellae (Bt); slightly acid. ' TYPE LOCATION: Isanti County, Minnesota; about 1 mile west of Isanti Village; 2,060 feet west and 550 feet north of the center of sec. 30, T. 35 N., R. 23 W. � RANGE IN CHARACTERISTICS: Depth to free cazbonates is 60 inches or more. Typically the profiles do not have rock fragments, but the lower horizons may have as much as 5 percent in some pedons. These fragments are less than 5 mm in diameter. Base saturation by sum of cations is 50 to 60 ' percent in the part of the Bt horizon with the lowest base saturation. The reaction ranges from slightly acid to strongly acid in the upper part to slightly acid or neutral in the lower part. , http://ortho.ftw.nres.usda.gov/cgi-bin/osd/osdname.cgi?-P 6/17/2004