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Mitchellbay soil series

Soil profile: A representative soil profile of the Mitchellbay soil series. (Soil Survey of San Juan County, Washington; by Michael Regan, Natural Resources Conservation Service)

 

The Mitchellbay series consists of moderately deep, somewhat poorly drained soils formed in glacial drift over dense glaciomarine deposits. Mitchellbay soils are in valleys and on glacial drift plains and have slopes of 0 to 25 percent. Mean annual precipitation is about 31 inches and the mean annual temperature is about 48 degrees F.

 

TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Aquultic Haploxeralfs

 

Mean annual soil temperature - 48 to 50 degrees F.

Moisture control section - dry 60 to 75 days following the summer solstice

Depth to redoximorphic features - 9 to 18 inches

Depth to densic contact - 20 to 40 inches

Particle-size control section:

Clay content - 18 to 35 percent

 

USE AND VEGETATION: These soils are used for pasture, forage crop production, and forestry. Potential natural vegetation consists of western redcedar, bigleaf maple, Douglas-fir, grand fir, red alder, swordfern, deer fern, salal, stinging nettle, gooseberry, and snowberry.

 

DISTRIBUTION AND EXTENT: Northwest Washington; MLRA A2, Northern Part. Series is of moderate extent.

 

For additional information about the survey area, visit:

www.nrcs.usda.gov/Internet/FSE_MANUSCRIPTS/washington/WA0...

 

For a detailed soil description, visit:

soilseries.sc.egov.usda.gov/OSD_Docs/M/MITCHELLBAY.html

 

For acreage and geographic distribution, visit:

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

 

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Uploaded on April 16, 2011
Taken in January 2000