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Pywell soil series

A representative soil profile of the Pywell series in idaho.

 

The Pywell series consists of very deep, very poorly drained organic soils in depressional areas of bottomlands, drainageways and flood plains. They formed in material derived dominantly from herbaceous plants, but including some woody materials. Saturated hydraulic conductivity is moderately high. Slopes are 0 to 3 percent. Average annual precipitation is about 625 mm, and the average annual air temperature is about 7.2 degrees C.

 

TAXONOMIC CLASS: Euic, frigid Typic Haplosaprists

 

Average annual soil temperature -- 6.1 to 7.8 degrees C.

Depth to high water table -- 28 to 90 cm (January to December) drained, 0 to 28 cm (December to July) undrained.

Organic layers -- more than 75 cm thick mostly sapric, but some pedons have variable amounts of fibric or hemic material

Volcanic ash -- thin, discontinuous layers present in some pedons (0.5 to 8 cm thick)

Woody material -- 0 to 35 percent, present in the lower part of some pedons

Reaction -- neutral to very strongly acid throughout

 

USE AND VEGETATION: Most Pywell soils have been cleared, diked, and drained for farming. They are used primarily for production of spring wheat, oats, barley, grass seed, hay, and pasture. Some areas are used for wetland wildlife habitat. Natural vegetation is willow, black cottonwood, thinleaf alder, pyramid spirea, narrowleaf cattail, reed canary grass, sedge, and rush with scattered western redcedar and Englemann spruce along edges of meadows.

 

DISTRIBUTION AND EXTENT: Northern Idaho, northeastern Washington, and possibly northwestern Montana. The series is moderately extensive. MLRAs 9 and 44A.

 

For additional information about Idaho soils, please visit:

storymaps.arcgis.com/stories/97d01af9d4554b9097cb0a477e04...

 

For a detailed soil description, visit:

soilseries.sc.egov.usda.gov/OSD_Docs/P/PYWELL.html

 

For acreage and geographic distribution, visit:

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

 

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Uploaded on May 6, 2011
Taken in January 2000