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Jory soil and landscape

Soil profile: A representative soil profile of the Jory series; the State Soil of Oregon.

 

Landscape: The Jory soils are on foothills adjacent to the Willamette and Umpqua Valleys. Slopes are 2 to 90 percent but are typically less than 60 percent. The soils occur at elevations of 250 to 2,500 feet. These soils are used mainly for orchards, Christmas trees, vineyards, cane berries, grass seed, timber production, wildlife habitat, and watershed health. Vegetation is dominated by Douglas-fir with scattered Oregon white oak and understory of poison-oak and rosebush.

 

A state soil is a soil that has special significance to a particular state. Each state in the United States has selected a state soil, twenty of which have been legislatively established. These “Official State Soils” share the same level of distinction as official state flowers and birds. Also, representative soils have been selected for the District of Columbia, Puerto Rico, and the Virgin Islands.

 

The Jory series, the state soil of Oregon, consists of very deep, well-drained soils that formed in colluvium derived from basic igneous rock. These soils are in the foothills surrounding the Willamette Valley. They have been mapped on more than 300,000 acres in western Oregon. They are named after Jory Hill, Marion County, Oregon.

 

Jory soils generally support forest vegetation, dominantly Douglas fir and Oregon white oak. They are very productive forest soils. Many areas have been cleared and are used for agricultural crops. The Jory soils and the climate of the Willamette Valley provide an ideal setting for the production of many crops, including Christmas trees, various berries, filberts (hazelnuts), sweet corn, wheat, and many varieties of grass seed. The soils are suitable for the grapes used in the expanding wine industry. Growing urbanization of the Willamette Valley is resulting in a great deal of pressure for development in areas of the Jory soils.

 

For a detailed description, visit:

soilseries.sc.egov.usda.gov/OSD_Docs/J/JORY.html

 

For acreage and geographic distribution, visit:

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

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Uploaded on August 16, 2021
Taken in January 2003