LOCATION EELWEIR NYEstablished Series
TAXONOMIC CLASS: Coarse-loamy, mixed, active, frigid Aquic Dystric Eutrudepts
TYPICAL PEDON: Eelweir find sandy loam, on a 4 percent south-facing slope in a meadow. (Colors are for moist soil unless otherwise noted.)
Ap--0 to 10 inches; dark brown (10YR 4/3) fine sandy loam; weak fine granular structure; very friable; many fine and medium roots; common coarse tubular pores; 1 percent gravel; moderately acid; clear wavy boundary. (7 to 10 inches thick)
Bw1--10 to 17 inches; dark yellowish brown (10YR 4/4) fine sandy loam; weak fine and medium subangular blocky structure; very friable; many fine roots; few coarse tubular pores; moderately acid; clear wavy boundary.
Bw2--17 to 24 inches; dark yellowish brown (10YR 4/4) fine sandy loam; few fine faint dark grayish brown (10YR 4/2) and few medium distinct grayish brown (10YR 5/2) mottles; weak medium and fine subangular blocky structure; friable; common fine roots; few coarse tubular pores; moderately acid; clear wavy boundary.
Bw3--24 to 29 inches; dark yellowish brown (10YR 4/4) fine sandy loam; few fine faint dark grayish brown (10YR 4/2) and common medium distinct yellowish brown (10YR 5/6) mottles, weak fine and medium subangular blocky structure; friable; few fine roots; 1 percent gravel; moderately acid; clear wavy boundary. (Combined thickness of the Bw horizons is 15 to 30 inches)
2CB--29 to 35 inches; brown (10YR 5/3) very fine sandy loam; common medium faint dark yellowish brown mottles; weak medium and fine angular blocky structure; friable; few fine roots; moderately acid; abrupt irregular boundary. (0 to 6 inches thick)
3C1--35 to 39 inches; yellowish brown (10YR 5/4) loamy fine sand; common faint 1/2 inch thick brownish yellowish (10YR 6/6) lamellae; massive; friable; few fine roots; moderately acid; clear wavy boundary.
3C2--39 to 72 inches; yellowish brown (10YR 5/4) sand; stratified, faint, yellowish brown (10YR 5/6) lamellae; weak thick platy structure; very friable; moderately acid.
TYPE LOCATION: St. Lawrence County, New York, Town of Canton; 200 feet west of Rice Rd, 1.5 miles to junction of Rice Rd and US Rt. 11, 44 degrees, 30 minutes 38 seconds north latitude, and 75 degrees 14 minutes 41 seconds west longitude.
RANGE IN CHARACTERISTICS: The thickness of the solum ranges from 25 to 40 inches. Depth to bedrock is greater than 60 inches. Rock fragments range from 0 to 5 percent throughout and are mostly gravel. Free carbonates are present in some pedons at a depth of 40 to 80 inches. Reaction ranges from strongly acid to slightly acid in the surface layer, from moderately acid to neutral in the subsoil, and moderately acid to mildly alkaline in the substratum.
The Ap horizon has hue of 10YR, value of 3 or 4, and chroma of 2 or 3. It is fine sandy loam, very fine sandy loam, sandy loam, or loam.
The B horizon has hue of 7.5YR or 10YR, value of 3 to 5, and chroma of 3 to 6. Texture is very fine sandy loam, fine sandy loam, or loam. There are thin layers of loamy sand or loamy fine sand in some pedons.
Some pedons have a BC horizon up to 10 inches thick.
The C horizon has hue of 10YR or 2.5Y, value of 4 to 6, and chroma of 2 to 4. It is very fine sandy loam to sand. Some pedons have layers of clay or silty clay below depth of 60 inches.
COMPETING SERIES: The tentative Kalurah series is the only other series in the same family. Kalurah soils have more that 5 percent rock fragments in the solum and substratum.
The Bomoseen, Boothbay, Canalou, Elmwood, Fisk, Georgia, and Minoa series are in similar families. The Bomoseen, Georgia, and Minoa soils have a mesic temperature regime, and the Canalou soils are thermic. Boothbay soils have a fine-silty particle size control section. The Elmwood soils are coarse-loamy over clayey. Fisk soils are sandy over loamy.
GEOGRAPHIC SETTING: Eelweir soils are nearly level to strongly sloping soils on terraces and deltas. Slopes typically are simple and range form 0 to 15 percent. The soils developed in loamy, glacio-fluvial or glacio-lacustrine sediments. They often overlie calcareous glacio- marine sediments at depths of 40 to 80 inches. Mean annual temperature ranges from 42 to 45 degrees F; and mean annual precipitation ranges from 35 to 42 inches. The growing season ranges from 120 to 150 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the competing Elmwood and Kalurah soils and the Croghan, Hogansburg, Mino, and Nicholville soils. Elmwood soils have a clayey substratum above 40 inches. Croghan soils are on similar landscape positions as Eelweir soils but are sandy. Hogansburg and Kalurah soils formed in glacial till and are on higher positions in the surrounding landscape. Mino soils are somewhat poorly drained and are on nearby lower parts of the landscape. Nicholville soils are in similar landscape positions as Eelweir soils but have a higher silt content.
DRAINAGE AND PERMEABILITY: Moderately well drained. Runoff is slow in nearly level areas, medium or gentle slopes, and medium to rapid in strongly sloping areas. Permeability is moderately rapid or moderate in the surface layer, subsoil and upper part of the substratum. The lower part of the substratum is moderately rapid or rapid.
USE AND VEGETATION: Most areas of this soil are used for hay, cultivated crops, and pasture. Some areas are in woodland.
DISTRIBUTION AND EXTENT: The St. Lawrence River valley of Northern New York and the Champlain Plain of New York. This soil is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Amherst, Massachusetts
SERIES PROPOSED: St. Lawrence County, New York, 1987.
REMARKS: Diagnostic horizons and features recognized in the typical pedon are: A. Ochric epipedon - the zone from the surface of the soil to a depth of 10 inches (Ap horizon). B. Cambic horizon - the zone from 10 to 29 inches (Bw horizons). C. Aquic subgroup feature - mottles with chroma of 2 or less are within 24 inches of the surface (Bw2 horizon). D. Dystric subgroup feature - lack free carbonates with 40 inches of the soil surface. E. Eutrochrepts great group - base saturation that is 60 percent or more in some subhorizon between depths of 10 and 30 inches (Bw horizons).