LOCATION BOAZ               WI
Established Series
Rev. HFG-JJJ
12/2006

BOAZ SERIES


The Boaz series consists of very deep, somewhat poorly drained soils formed in silty alluvial deposits on flood plains. They have moderate permeability. Slopes range from 0 to 3 percent. Mean annual precipitation is about 30 inches. Mean annual air temperature is 47 degrees F.

TAXONOMIC CLASS: Fine-silty, mixed, superactive, nonacid, mesic Aeric Endoaquepts

TYPICAL PEDON: Boaz silt loam - on a 1 percent slope in a cultivated field at an elevation of about 1100 feet. (Colors are for moist soil unless otherwise stated.)

Ap--0 to 9 inches; very dark gray (10YR 3/1) silt loam, gray (10YR 5/1) dry; weak medium granular structure; friable; many very fine roots; neutral; abrupt smooth boundary. (5 to 9 inches thick)

Bg--9 to 13 inches; dark grayish brown (10YR 4/2) silt loam; moderate medium subangular blocky structure; friable; many very fine roots; common medium prominent yellowish red (5YR 5/8) masses of iron accumulation in the matrix; neutral; clear wavy boundary. (2 to 15 inches thick)

Bw--13 to 16 inches; brown (10YR 5/3) silt loam; moderate fine subangular blocky structure; friable; few very fine roots; many medium prominent yellowish brown (10YR 5/8) masses of iron accumulation in the matrix; neutral; clear wavy boundary.(2 to 10 inches thick)

Bg--16 to 32 inches; grayish brown (10YR 5/2) silt loam; moderate medium subangular blocky structure; firm; few very fine roots; many medium prominent strong brown (7.5YR 5/8) and yellowish red (5YR 5/8) masses of iron accumulation in the matrix; neutral; clear wavy boundary. (10 to 20 inches thick)

Cg--32 to 60 inches; light brownish gray (2.5Y 6/2) silt loam; massive; firm; few medium prominent yellowish brown (10YR 5/8) masses of iron accumulation in the matrix; neutral.

TYPE LOCATION: Monroe County, Wisconsin; about 1.5 miles north of Norwalk; 220 feet south and 700 feet west of the northeast corner of sec. 21, T. 16 N., R. 2 W. USGS Wilton, Wis. Quad. Latitude 43 degrees 51 minutes 20 seconds N. Longitude 90 degrees 36 minutes 52 seconds W. NAD 27.

RANGE IN CHARACTERISTICS: Depth to the base of soil development ranges from 25 to 40 inches. Reaction ranges from moderately acid to neutral throughout the soil. The particle-size control section averages between 18 and 25 percent clay.

The A or Ap horizon has value of 2 or 3 and chroma of 1 to 3. Texture is silt loam.

The Bg horizon has hue of 10YR or 2.5Y, value of 4 to 6, and chroma of 1 or 2. Texture typically is silt loam but some pedons have subhorizons of silty clay loam.

The Bw horizon has hue of 10YR or 2.5Y, value of 3 to 5, and chroma of 3 or more. Value and chroma of 3 do not occur together. Texture is like the Bg horizon above.

The Bg horizon has color and texture like the Bg horizon described above.

Some pedons have a BCg horizon which has colors and textures like the Bg horizon Described above.

The Cg horizon has hue of 10YR, 2.5Y, or 5Y; value of 4 to 6; and chroma of 1 or 2. Texture is silt loam or silty clay loam. Some pedons havethin lenses of silty clay, silt, or very fine sand at depths of 40 inches or more.

COMPETING SERIES: There are no competing series. Similar series are the Arenzville, Ettrick, Lawson, and Orion series. Arenzville and Orion soils have dark-colored buried horizons and are coarse-silty. Ettrick soils have a mollic epipedon and are poorly drained and very poorly drained. Lawson soils have mollic epipedons more than 24 inches thick and are not as gray.

GEOGRAPHIC SETTING: Boaz soils are on high flood plains along perennial streams. Slopes range from 0 to 3 percent. Boaz soils formed in moderately thick silty alluvium derived from loess-mantled uplands. Mean annual precipitation ranges from 28 to 33 inches. Mean annual air temperature ranges from 45 to 51 degrees F.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Arenzville, Ettrick, and Orion soils. The well drained and moderately well drained Arenzville soils are nearby on higher positions in the floodplain than Boaz soils. The somewhat poorly drained Orion soils are nearby in similar landscape positions. The poorly drained and very poorly drained Ettrick soils are in lower positions in the floodplain than Boaz soils.

DRAINAGE AND PERMEABILITY: Somewhat poorly drained. The potential for surface runoff ranges from negligible to low. Permeability is moderate. These soils have an apparent seasonal high water table at a depth of 0.5 to 1.5 feet for some time in most years.

USE AND VEGETATION: Undrained areas are used mostly for pastureland and woodland. Drained areas are used for cropland. Common crops are corn, small grain, and hay. Native vegetation is a forest of maple and elm, and some grasses in the understory.

DISTRIBUTION AND EXTENT: Southwestern Wisconsin. Boaz soils are of moderate extent.

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: St. Paul, Minnesota

SERIES ESTABLISHED: Richland County, Wisconsin, 1949.

REMARKS: Diagnostic horizons and features recognized in this pedon are: ochric epipedon - 0 to 9 inches (Ap); cambic horizon - 9 to 35 inches (Bg, Bw, and Bg); aquic feature - have dominant chroma of 2 or less and saturation in the cambic horizon within 20 inches of the soil surface; Aeric subgroup - chroma of 3 or more in more than 50 percent of the matrix in at least one subhorizon between the A horizon and 30 inches.

2006- Boaz soils were not correlated in the update of Richland County. Therefore, this revision provides a new typical pedon in Monroe County.
Boaz soils need study. Three counties where they were originally correlated have been updated and Boaz soils were not correlated in any of these updates.


National Cooperative Soil Survey
U.S.A.