French
DeutschDubakella
Dubakella soil series is the name given to a reddish-brown stony loam soil which has developed on ultramafic rock containing magnesium minerals such as serpentine or asbestos.[1] This soil occurs from southwestern Oregon south to the Coast Ranges of California near Healdsburg, and it also is found in the Sierra Nevada mountains and foothills.[2]
In common with other ultramafic soils, Dubakella has a poor balance of nutrients which does not allow the vegetation it supports to match the luxuriance seen on adjacent non-ultramafic sites. Jeffrey Pine is usually the most common tree, accompanied by Douglas-Fir, Incense-Cedar, and Sugar Pine—all in open, somewhat stunted stands. Stunting may be less severe in areas which have been dusted with nutrient-bearing volcanic ash. In some areas, as at Grass Valley and near Nevada City, the less stately Gray Pine is dominant.[3][4] On the poorest sites vegetation may be held to a chaparral-like state.
In addition to being inferior for forestry and poor for agriculture, Dubalkella may present a health hazard due to presence of asbestos. Any Dubakella land which has been developed or is scheduled in that direction should be tested.[5]
References and External Links
[edit]- ^ https://soilseries.sc.egov.usda.gov/OSD_Docs/D/DUBAKELLA.html Official Series Description
- ^ http://casoilresource.lawr.ucdavis.edu/see/#dubakella Series Extent Explorer (DUBAKELLA)
- ^ "Google Maps". Google Maps. Archived from the original on August 12, 2017.
- ^ https://www.google.com/maps/@39.2650656,-121.0636542,3a,75y,130.05h,87.91t/data=!3m7!1e1!3m5!1sf7cdmpxlLvd3JcZNu8U4-Q!2e0!5s20210301T000000!7i16384!8i8192?entry=ttu Google Street View of Dubakella landscape on Newtown Road near Nevada City.
- ^ http://www.epa.gov/superfund/health/contaminants/asbestos/pdfs/noa_factsheet.pdf Naturally Occurring Asbestos:Approaches for Reducing Exposure
- Series Extent Explorer | California Soil Resource Lab Series Extent Explorer (DUBAKELLA)
- Official Series Description - DUBAKELLA Series Official Series Description
- [1] Naturally Occurring Asbestos:Approaches for Reducing Exposure
- Google Maps Google Street View of Gray Pine on Dubakella loam in Grass Valley
- Google Maps This developed area of Dubakella loam in Grass Valley, as seen in Google Street View, is home to serpentine-tolerant Sweetgum and Deodar