Oxalis Soil Series
K-Factor
0.32
Soil Erodibility Factor
Texture Class
silty clay loam
Drainage Class
well drained
About Oxalis
Deep, well drained soils formed in colluvium and residuum derived from sandstone and siltstone under a udic moisture regime. Found on steep coastal slopes and ridges with slopes of 30 to 75 percent and high annual rainfall.
K factor values are sourced from the USDA Natural Resources Conservation Service (NRCS) SSURGO database.
Using Oxalis in a RUSLE calculation
For a California construction project, use the soil K factor with rainfall erosivity, slope length and steepness, cover management, and support practice inputs. The K factor represents the soil erodibility portion of the model, so selecting the soil series that matches the site is important for defensible stormwater documentation.
In a SWPPP workflow, the practical question is not just what soil type is mapped near the project. It is whether the mapped series, K factor, and drainage assumptions match the site evidence well enough to support the RUSLE or RUSLE2 calculation.
California Distribution
Characteristic of the wet coastal forests of Del Norte County, supporting old-growth redwood and Douglas-fir. High rainfall and steep slopes make these soils susceptible to mass movement and surface erosion.
Counties Where Found
Oxalis soil FAQ
What is the K factor for Oxalis soil?
Oxalis has a listed K factor of 0.32 in the Rapid RUSLE soil directory. Confirm final values against project specific soil survey data before submitting permit documents.
Where is Oxalis soil found in California?
Oxalis is mapped in Del Norte, Humboldt. County mapping is based on available soil series data and should be verified for the exact project location.
How is Oxalis used in RUSLE erosion calculations?
Use the Oxalis K factor as the soil erodibility input in RUSLE or RUSLE2, along with rainfall, slope, cover, and support practice factors for the site.
Calculate erosion risk with Oxalis soil data
Start a Rapid RUSLE project with this soil's K-factor (0.32) pre-loaded. Get accurate RUSLE erosion risk assessments in minutes.
Start a Rapid RUSLE project with this soilNo login required to preview results.