LOCATION ADJIDAUMO NY
Established Series
Rev. SCC-SWA-GWS
10/2015
ADJIDAUMO SERIES
The Adjidaumo series consists of very deep, poorly drained and very poorly drained soils formed in fine sediments deposited in marine and lacustrine environments. They are nearly level soils in depressions on marine and lacustrine plains and in basins on uplands. Slopes range from 0 to 3 percent. Mean annual temperature is 7 degrees C, and mean annual precipitation is 1000 mm.
TAXONOMIC CLASS: Fine, mixed, active, nonacid, frigid Mollic Endoaquepts
TYPICAL PEDON: Adjidaumo silty clay, on a 1 percent concave northeast-facing slope in a pasture. (Colors are for moist soil unless otherwise stated.)
Ap--0 to 20 cm; very dark gray (10YR 3/1) silty clay, gray (10YR 5/1) dry; weak fine subangular blocky structure; friable, sticky; many very fine and medium roots; many fine and medium interstitial pores; common fine distinct yellowish brown (10YR 5/8) soft masses of Fe oxides; less than 1 percent gravel; neutral; abrupt smooth boundary. (18 to 25 cm thick)
Bg1--20 to 46 cm; gray (N 6/0) silty clay; weak fine and medium subangular blocky structure; friable, sticky; few fine and very fine roots; few medium vesicular pores and few fine and medium interstitial pores; many coarse prominent yellowish brown (10YR 5/6) soft masses of Fe oxides; less than 1 percent gravel; neutral; gradual wavy boundary.
Bg2--46 to 69 cm; gray (N 5/0) clay; weak fine subangular blocky structure; friable, sticky; few fine roots; common fine and very fine vesicular and few fine tubular pores; many medium distinct yellowish brown (10YR 5/4) soft masses of Fe oxides, and many coarse faint grayish brown (10YR 5/2) areas of Fe depletion; less than 1 percent gravel; neutral; clear wavy boundary. (Combined thickness of the Bg horizon is 43 to 97 cm.)
Cg--69 to 165 cm; gray (N 5/0) clay; massive; firm, sticky; very few fine roots; very few fine vesicular pores; many coarse prominent brown (10YR 4/3), and few medium distinct yellowish brown (10YR 5/4) soft masses of Fe oxides; less than 1 percent gravel; very slightly effervescent; slightly alkaline.
TYPE LOCATION: St. Lawrence County, New York; Town of Dekalb, 80 feet NE from a point on Gibbons Street that is 180 feet south of the junction of U.S. 11; USGS Rensselaer Falls topographic quadrangle; latitude 44 degrees 31 minutes 5 seconds N. and longitude 75 degrees 15 minutes 58 seconds W., NAD83.
RANGE IN CHARACTERISTICS: The thickness of the solum ranges from 61 to 122 cm. Redoximorphic features consisting of Fe depletions and concentrations occur within 50 cm of mineral soil surface. Depth to carbonates ranges from 61 to 152 cm. Rock fragments, mostly gravel size, range from 0 to 2 percent in the solum and from 0 to 20 percent in the C horizon.
The A horizon has hue of 10YR, value of 2 or 3, chroma of 0 to 2. It is commonly silty clay loam or silty clay and is less commonly silt loam or clay loam. Mucky analogs of these textures are recognized. Reaction is slightly acid or neutral.
The B horizon is neutral in color or has hue of 10YR to 5Y, value of 4 to 6, chroma of 0 to 2. It is silty clay loam, silty clay, or clay. Reaction is neutral or mildly alkaline.
The C horizon is neutral in color or has hue of 7.5YR to 2.5Y, value of 3 to 5, chroma of 0 to 3. It is silty clay loam, silty clay, clay, or silt loam. Thin layers of very fine sand or fine sand are in some pedons. It is often varved and it may be either massive or exhibit plates or have a tendency to part along varves. Reaction is slightly alkaline or moderately alkaline.
COMPETING SERIES: The
Guff series are members of the same family. The Guff soils are moderately deep to bedrock.
The
Sims soils are similar series. The Sims soils formed in glacial till and have more gravel or cobbles in the solum.
GEOGRAPHIC SETTING: Adjidaumo soils are in depressional areas of marine or lacustrine plains or are in depressions in upland basins. They formed in fine marine or lacustrine sediments. Slopes range from 0 to 3 percent. Mean annual temperature ranges from 4 to 9 degrees C; mean annual precipitation ranges from 790 to 1490 mm; and the mean annual frost-free days ranges from 100 to 160 days. Elevation ranges from 25 to 375 meters above sea level.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Elmwood,
Flackville,
Heuvelton,
Malone,
Matoon,
Munuscong,
Muskellunge,
Ogdensburg,
Ruse,
Stockholm, and
Swanton soils. Elmwood and Flackville soils are on higher topographic positions than Adjidaumo soils. Elmwood is coarse-loamy over clayey, and Flackville is a member of the sandy over clayey textural family. Heuvelton, Matoon, and Muskellunge soils are on higher landscape positions and, in addition, Heuvelton soils have an udic moisture regime. Matoon and Muskellunge soils have a layer above 76 cm that have more than 40 percent high chroma colors. Munuscong, Stockholm and Swanton soils are on similar topographic positions as Adjidaumo soils but have strongly contrasting family textures. Munuscong and Swanton soils are coarse-loamy over clayey and Stockholm soils are sandy over clayey. Malone, Ogdensburg, and Ruse soils are higher in the landscape than Adjidaumo soils and are in coarse-loamy families.
DRAINAGE AND PERMEABILITY: Poorly and very poorly drained. Very poor drainage is restricted to mucky surface phases. Runoff is slow to ponded. Saturated hydraulic conductivity is moderately low or moderately high in the surface, and low or moderately low in the subsoil and substratum.
USE AND VEGETATION: Cleared areas are used for pasture and for growing hay. Native trees include red maple, American elm, white ash, white cedar and eastern hemlock.
DISTRIBUTION AND EXTENT: St. Lawrence Valley of New York, and the Champlain Plain of New York and possibly Vermont. The series is moderately extensive.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Amherst, Massachusetts
SERIES ESTABLISHED: St. Lawrence County, New York, 1986. Source of name is a small lake in Southern St. Lawrence County.
REMARKS: Because of recent changes to Soil Taxonomy this soil now falls into the new great group of Endoaquepts. Competing series are expected to change as similar soils are reclassified.
Diagnostic horizons and features recognized in the typical pedon are as follows:
1. Ochric epipedon - from 0 to 20 cm (Ap horizon).
2. Cambic horizon - from 20 to 69 cm (Bg1 and Bg2 horizons).
3. Endoaquepts great group - reduced matrix and redoximorphic concentrations within 51 cm of the mineral soil surface.
4. Redoximorphic features - Fe depletions, Fe concentrations, reduced matrices which are evidence of aquic conditions.
Soil Interpretation Record No: NY0360, NY0361, NY0371
National Cooperative Soil Survey
U.S.A.