Tokul -- Washington State Soil
Tokul Soil Profile
|The name Tokul is derived from a small
community and creek in King County, Washington. The State of Washington has more than
1,000,000 acres of Tokul soils. These soils are on the western side of the Cascade
Mountains along the Puget Trough, from south of Seattle north to the Canadian border.
Washington was the first state to recognize soils that formed in volcanic ash (Andisols)
as a state soil.
Tokul soils are among the most productive soils in the world. These soils support Douglas-fir and other conifer trees, which are the source of Washingtons nickname, the Evergreen State. The State of Washington has hundreds of soils that are influenced by volcanic ash. These volcanic soils are used for crop production, timber production, livestock grazing, recreation, and watershed. Most areas of Tokul soils are used for timber production, but some of the smaller areas are used as pasture and for urban development. Tokul soils are limited as sites for homes. Water perches above the dense glacial till during wet periods, making steep slopes unstable.
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