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Bonner soil and landscape

A soil profile and landscape of the Bonner soil series in Idaho. The Bonner series consists of very deep, well drained soils formed in glacial outwash material derived dominantly from granite, gneiss and schist, with a mantle of volcanic ash and loess. Permeability is moderate in the solum and rapid to very rapid in the underlying material.

 

Landscape: These soils are on terraces and terrace escarpments. Slopes range from 0 to 65 percent. Average annual precipitation is about 30 inches and average annual air temperature is about 43 degrees F.

 

TAXONOMIC CLASS: Ashy over loamy-skeletal, aniso, glassy over isotic, frigid Typic Vitrixerands

 

Soil moisture control section - dry 45 to 60 days July to September, moist October through June Average annual soil temperature - 43 to 47 degrees F. Average summer soil temperature - 50 to 55 degrees F. with an O horizon

Solum thickness - 24 to 36 inches Reaction - moderately acid to neutral throughout

Volcanic ash mantle - 14 to 26 inches thick Volcanic glass content in the 0.02 to 2.0 mm fraction - 40 to 70 percent Acid-oxalate extractable Al + 1/2 Fe - 1 to 3 percent Phosphate retention - 55 to 90 percent 15-bar water content an air dried samples - 7 to 12 percent

 

USE AND VEGETATION: These soils are used for timber production, grazing, homesites, cropland, hay and pasture, recreation, and wildlife habitat. Natural vegetation is mainly grand fir, Douglas-fir, ponderosa pine, lodgepole pine, and western larch, with an understory of pine reedgrass, myrtle pachystima, baldhip rose, common snowberry, longtube twinflower, American trailplant, piper anemone, goldthread, sedge, and common princes pine.

 

DISTRIBUTION AND EXTENT: Northern Idaho, northeastern Washington, and northwestern Montana. The series is extensive.

 

For additional information about Idaho soils, please visit:

storymaps.arcgis.com/stories/97d01af9d4554b9097cb0a477e04

 

For a detailed description, visit:

soilseries.sc.egov.usda.gov/OSD_Docs/B/BONNER.html

 

For acreage and geographic distribution, visit:

casoilresource.lawr.ucdavis.edu/see/#bonner

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Uploaded on May 12, 2021
Taken in January 2002