LOCATION LONGPINE NEEstablished Series
TAXONOMIC CLASS: Loamy, mixed, superactive, calcareous, mesic, shallow Typic Ustorthents
TYPICAL PEDON: Longpine fine sandy loam with a slopes of 2 percent in a cultivated field. (Colors are for dry soil unless otherwise stated.)
Ap--0 to 5 inches; grayish brown (10YR 5/2) fine sandy loam, dark brown (10YR 3/3) moist; weak fine granular structure; soft, very friable; common fine and very fine roots throughout; strongly effervescent throughout; moderately alkaline; abrupt wavy boundary. (3 to 9 inches thick)
C--5 to 16 inches; light gray (2.5Y 7/2) gravelly fine sandy loam, grayish brown (2.5Y 5/2) moist; massive; soft, very friable; common fine and very fine roots throughout; 20 percent by volume sandstone gravel; violently effervescent throughout; slightly alkaline; clear wavy boundary. (3 to 11 inches thick)
Cr--16 to 80 inches; pale yellow (2.5Y 8/2) sandstone, light brownish gray (2.5Y 6/2) moist; violently effervescent throughout.
TYPE LOCATION: Cherry County, Nebraska; about 3 miles north of Crookston, 275 feet east and 1650 feet south of the northwest corner of section 32, T. 35 N., R. 29 W. Kilgore topographic quadrangle; latitude 42 degrees, 58 minutes North, longtitude 100 degrees, 46 minutes, 2 seconds West.
RANGE IN CHARACTERISTICS: Depth to the sandstone bedrock ranges from 10 to 20 inches. Depth to free carbonates ranges from 0 to 6 inches.
The A horizon has hue of 10YR or 2.5Y, value of 4 through 7 (3 through 5 moist) and chroma of 2 or 3. It is typically fine sandy loam, but the range includes loamy fine sand, loamy sand, sandy loam, and very fine sandy loam. Sandstone gravel ranges from 0 to 15 percent by volume. It is neutral through moderately alkaline.
Some pedons have an AC horizon that is intermediate in color and texture between the A and the C horizons.
The C horizon has hue of 10YR, 2.5Y, or 5Y, value of 5 through 8 (4 through 7 moist) and chroma of 2 or 3. It is typically gravelly fine sandy loam, but the range includes gravelly loamy very fine sand and gravelly sandy loam. Sandstone gravel ranges from 15 to 35 percent by volume. Some pedons have less than 15 percent sandstone gravel. It is slightly alkaline or moderately alkaline.
The Cr horizon is calcareous sandstone bedrock.
COMPETING SERIES: This is the Mariaville series in the same family and the Canyon, Epping, Niobrara and Tassel series in closely related families. Mariaville soils contain more silt and clay in the control section and formed in residuum weathered from siltstone. Canyon and Tassel soils have a drier moisture regime. In addition, Canyon soils have more clay in the control section. Epping soils contain more clay in the control section, have a drier moisture regime and formed in residuum from siltstone. Niobrara soils are sandy in the particle size control section.
GEOGRAPHIC SETTING: Longpine soils formed in loamy residuum weathered from sandstone on valley sides and uplands. On valley sides they are on shoulders and the upper third of back slopes. On uplands, they are on flats, low ridges, hillsides, and buttes. Slopes range from 0 to 70 percent. The mean annual precipitation ranges from 18 to 24 inches and the mean annual air temperature ranges from 46 to 50 degrees F.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Anselmo, Brunswick, Duda, Dunday, Hennings, Holt, McKelvie, Ronson, Simeon and Valentine soils. Anselmo soils are very deep and are on flats, low ridges, and hillslopes. Brunswick soils are moderately deep over sandstone and are on hillslopes and valley sides. Duda and Dunday soils have a sandy particle size control section. Duda soils are moderately deep over sandstone, and are on flats, hillslopes and valley sides. Dunday soils are very deep and are on flats, low ridges and hillslopes. Hennings soils have a fine-loamy particle size control section, are deep over sandstone and are on flats and hillslopes. Holt and Ronson soils are moderately deep over sandstone and are on flats, low ridges and hillsides. Ronson soils are also on valley sides. McKelvie, Simeon and Valentine soils have a sandy particle size control section and are very deep. McKelvie soils are on back slopes and foot slopes of valley sides. Simeon soils are on flats and hillslopes of uplands and back slopes of valley sides. Valentine soils are on hummocks and dunes in the sandhills.
DRAINAGE AND PERMEABILITY: Well drained. Runoff is low to very high depending on slope. Permeability is moderately rapid.
USE AND VEGETATION: These soils are used for rangeland, wildlife habitat and recreation. The native vegetation is mainly little bluestem, needleandthread, blue grama, sideoats grama, sand bluestem, prairie sandreed, threadleaf sedge, plains muhly, prickly pear cactus and yucca. Native ponderosa pine and eastern red cedar are on valley sides along the Niobrara River and its near tributaries.
DISTRIBUTION AND EXTENT: North central Nebraska and possibly south central South Dakota. The series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Denver, Colorado
SERIES ESTABLISHED: Cherry County, Nebraska, 1995.
REMARKS: These soils have previously been mapped as taxadjuncts to the Tassel series. Diagnostic horizons and features recognized in this pedon are: ochric epipedon--the zone from the surface of the soil to a depth of about 5 inches (the A horizon) paralithic contact--at a depth of 14 inches; below this depth roots penetrate cracks in the rock. The cracks are greater than 4 inches apart.