Seaboldt soil series
A representative soil profile of the Seaboldt series. (Soil Survey of Spokane County, Washington; by Scott H. Bare, Natural Resources Conservation Service)
When photographing soils, a soil scientist will commonly use a knife to pick the profile face to show natural soil structure (left side of profile). Or, they may use a knife or shovel to smooth the surface (right side of the profile) which helps show change in color or horizonation.
Landscape--channeled scablands
Landform--outwash plains on plateaus
Slope--0 to 15 percent
Parent material--loess mixed with a minor amount of volcanic ash over glaciofluvial deposits over residuum derived from basalt
Mean annual precipitation--about 510 mm
Mean annual air temperature--about 9 degrees C
Depth class--moderately deep
Drainage class--well drained
Soil moisture regime--xeric
Soil temperature regime--mesic
Soil moisture subclass--typic
TAXONOMIC CLASS: Coarse-loamy, isotic, mesic Vitrandic Haploxerolls
Mean annual soil temperature--9 to 11 degrees C
Moisture control section--dry 60 to 90 consecutive days after summer solstice (July through September); moist in October through June
Depth to basalt--50 to 100 cm
Thickness of mollic epipedon--25 to 50 cm
Base saturation--less than 75 percent, by sum of cations, in one or more horizons between depths of 25 and 75 cm (estimated)
Particle-size control section--averages 4 to 18 percent clay and 0 to 25 percent rock fragments
Thickness of layers influenced by volcanic ash--18 to 35 cm
Estimated properties of layers influenced by volcanic ash
*Content of volcanic glass in 0.02- to 2-mm fraction--5 to 20 percent
*Ammonium oxalate Al plus 1/2 Fe--0.4 to 1.0 percent
An Oi horizon is in uncultivated areas.
USE AND VEGETATION:
Use--dominantly homesite development and crop production; wildlife habitat in some areas
Common crops--small grain, hay, pasture
Potential natural vegetation--ponderosa pine, Saskatoon serviceberry, common snowberry, Idaho fescue, arrowleaf balsamroot, bluebunch wheatgrass, common yarrow, lupine
A dry phase of the Seaboldt series is mapped in Spokane County and is correlated to ecological site R009XY102WA.
DISTRIBUTION AND EXTENT: Eastern Washington; MLRAs 9 and 44A; small extent. The official series description was updated as part of the final correlation of the Spokane County, Washington, soil survey. The series describes the soils formerly mapped as Gibbs taxadjunct. The primary taxadjunct feature is the coarse-loamy particle-size control section that is dominantly coarser glaciofluvial parent material.
For additional information about the survey area, visit:
www.nrcs.usda.gov/Internet/FSE_MANUSCRIPTS/washington/spo...
For a detailed soil description, visit:
soilseries.sc.egov.usda.gov/OSD_Docs/S/SEABOLDT.html
For acreage and geographic distribution, visit:
casoilresource.lawr.ucdavis.edu/see/#seaboldt
Seaboldt soil series
A representative soil profile of the Seaboldt series. (Soil Survey of Spokane County, Washington; by Scott H. Bare, Natural Resources Conservation Service)
When photographing soils, a soil scientist will commonly use a knife to pick the profile face to show natural soil structure (left side of profile). Or, they may use a knife or shovel to smooth the surface (right side of the profile) which helps show change in color or horizonation.
Landscape--channeled scablands
Landform--outwash plains on plateaus
Slope--0 to 15 percent
Parent material--loess mixed with a minor amount of volcanic ash over glaciofluvial deposits over residuum derived from basalt
Mean annual precipitation--about 510 mm
Mean annual air temperature--about 9 degrees C
Depth class--moderately deep
Drainage class--well drained
Soil moisture regime--xeric
Soil temperature regime--mesic
Soil moisture subclass--typic
TAXONOMIC CLASS: Coarse-loamy, isotic, mesic Vitrandic Haploxerolls
Mean annual soil temperature--9 to 11 degrees C
Moisture control section--dry 60 to 90 consecutive days after summer solstice (July through September); moist in October through June
Depth to basalt--50 to 100 cm
Thickness of mollic epipedon--25 to 50 cm
Base saturation--less than 75 percent, by sum of cations, in one or more horizons between depths of 25 and 75 cm (estimated)
Particle-size control section--averages 4 to 18 percent clay and 0 to 25 percent rock fragments
Thickness of layers influenced by volcanic ash--18 to 35 cm
Estimated properties of layers influenced by volcanic ash
*Content of volcanic glass in 0.02- to 2-mm fraction--5 to 20 percent
*Ammonium oxalate Al plus 1/2 Fe--0.4 to 1.0 percent
An Oi horizon is in uncultivated areas.
USE AND VEGETATION:
Use--dominantly homesite development and crop production; wildlife habitat in some areas
Common crops--small grain, hay, pasture
Potential natural vegetation--ponderosa pine, Saskatoon serviceberry, common snowberry, Idaho fescue, arrowleaf balsamroot, bluebunch wheatgrass, common yarrow, lupine
A dry phase of the Seaboldt series is mapped in Spokane County and is correlated to ecological site R009XY102WA.
DISTRIBUTION AND EXTENT: Eastern Washington; MLRAs 9 and 44A; small extent. The official series description was updated as part of the final correlation of the Spokane County, Washington, soil survey. The series describes the soils formerly mapped as Gibbs taxadjunct. The primary taxadjunct feature is the coarse-loamy particle-size control section that is dominantly coarser glaciofluvial parent material.
For additional information about the survey area, visit:
www.nrcs.usda.gov/Internet/FSE_MANUSCRIPTS/washington/spo...
For a detailed soil description, visit:
soilseries.sc.egov.usda.gov/OSD_Docs/S/SEABOLDT.html
For acreage and geographic distribution, visit:
casoilresource.lawr.ucdavis.edu/see/#seaboldt