Hugus soil series
Typical profile of a Hugus soil. The volcanic ash mantle is between depths of 2 and 17 inches (A and Bw horizons). The ochric epipedon is between depths of 2 and 6 inches (A horizon). The cambic horizon is between depths of 6 and 17 inches (Bw horizon). The argillic horizon is between depths of 17 and 62 inches (2Bt horizon). The particle-size control section is between depths of 2 and 42 inches (A, Bw, and 2Bt horizons). (Soil Survey of Clearwater Area, Idaho; by Glenn Hoffman, Natural Resources Conservation Service)
The Hugus series consists of very deep, well drained soils on mountain slopes, ridges, foothills and dissected terraces. They formed in colluvium derived from metasedimentary rock, residuum and/or tertiary alluvium derived from quartzite or gneiss rock with a thick mantle of volcanic ash. Saturated hydraulic conductivity is moderately high. Slope ranges from 5 to 75 percent. The average annual air temperature is about 43 degrees F and the average annual precipitation is about 35 inches.
TAXONOMIC CLASS: Ashy over loamy-skeletal, amorphic over isotic, frigid Alfic Udivitrands
Soil moisture - usually dry for 25 to 35 consecutive days, moist mid-September through July, dry August to September.
Udic moisture regime.
Average annual soil temperature - 39 to 46 degrees F
Average summer soil temperature - 47 to 50 degrees F with an O horizon. Frigid temperature regime.
Depth to bedrock - greater than 60 inches
Thickness of Volcanic ash mantle - 14 to 23 inches
Volcanic glass content in the 0.02 to 2.0 mm fraction - 15 to 60 percent
Acid-oxalate extractable Al plus 1/2 Fe - 1.0 to 2.7 percent
Phosphate retention - 55 to 95 percent
15-bar water retention on air dried samples - 7 to 12 percent
USE AND VEGETATION: These soils are used mainly for timber production, wildlife habitat, recreation, and watershed. A few areas are used for livestock grazing and homesites. Potential natural vegetation is mainly western hemlock, western redcedar, western white pine, grand fir, western larch, Douglas-fir, and lodgepole pine, with an understory of queencup beadlily, goldthread, bunchberry dogwood, longtube twinflower, oneleaf foam flower, big blueberry, starry false-Solomon's-seal, western rattlesnake plantain, wild ginger, and myrtle pachystima.
DISTRIBUTION AND EXTENT: Northern Idaho. MLRA 43A. This soil is moderately extensive.
Parent material of the Hugus series mapped in West Benewah County is metasedimentary colluvium. The tertiary alluvium and colluvium parent materials are mapped in East Benewah and Shoshone Counties.
For additional information about the survey area, visit:
www.nrcs.usda.gov/Internet/FSE_MANUSCRIPTS/idaho/clearwat...
For a detailed soil description, visit:
soilseries.sc.egov.usda.gov/OSD_Docs/H/HUGUS.html
For acreage and geographic distribution, visit:
Hugus soil series
Typical profile of a Hugus soil. The volcanic ash mantle is between depths of 2 and 17 inches (A and Bw horizons). The ochric epipedon is between depths of 2 and 6 inches (A horizon). The cambic horizon is between depths of 6 and 17 inches (Bw horizon). The argillic horizon is between depths of 17 and 62 inches (2Bt horizon). The particle-size control section is between depths of 2 and 42 inches (A, Bw, and 2Bt horizons). (Soil Survey of Clearwater Area, Idaho; by Glenn Hoffman, Natural Resources Conservation Service)
The Hugus series consists of very deep, well drained soils on mountain slopes, ridges, foothills and dissected terraces. They formed in colluvium derived from metasedimentary rock, residuum and/or tertiary alluvium derived from quartzite or gneiss rock with a thick mantle of volcanic ash. Saturated hydraulic conductivity is moderately high. Slope ranges from 5 to 75 percent. The average annual air temperature is about 43 degrees F and the average annual precipitation is about 35 inches.
TAXONOMIC CLASS: Ashy over loamy-skeletal, amorphic over isotic, frigid Alfic Udivitrands
Soil moisture - usually dry for 25 to 35 consecutive days, moist mid-September through July, dry August to September.
Udic moisture regime.
Average annual soil temperature - 39 to 46 degrees F
Average summer soil temperature - 47 to 50 degrees F with an O horizon. Frigid temperature regime.
Depth to bedrock - greater than 60 inches
Thickness of Volcanic ash mantle - 14 to 23 inches
Volcanic glass content in the 0.02 to 2.0 mm fraction - 15 to 60 percent
Acid-oxalate extractable Al plus 1/2 Fe - 1.0 to 2.7 percent
Phosphate retention - 55 to 95 percent
15-bar water retention on air dried samples - 7 to 12 percent
USE AND VEGETATION: These soils are used mainly for timber production, wildlife habitat, recreation, and watershed. A few areas are used for livestock grazing and homesites. Potential natural vegetation is mainly western hemlock, western redcedar, western white pine, grand fir, western larch, Douglas-fir, and lodgepole pine, with an understory of queencup beadlily, goldthread, bunchberry dogwood, longtube twinflower, oneleaf foam flower, big blueberry, starry false-Solomon's-seal, western rattlesnake plantain, wild ginger, and myrtle pachystima.
DISTRIBUTION AND EXTENT: Northern Idaho. MLRA 43A. This soil is moderately extensive.
Parent material of the Hugus series mapped in West Benewah County is metasedimentary colluvium. The tertiary alluvium and colluvium parent materials are mapped in East Benewah and Shoshone Counties.
For additional information about the survey area, visit:
www.nrcs.usda.gov/Internet/FSE_MANUSCRIPTS/idaho/clearwat...
For a detailed soil description, visit:
soilseries.sc.egov.usda.gov/OSD_Docs/H/HUGUS.html
For acreage and geographic distribution, visit: