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Representative Soil Features
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The soils are very deep and well drained. They are formed in alluvium derived from sandstone and shale. Surface textures include loam. The subsoil has textures of silty clay loam, fine sandy loam, silt loam, and very fine sandy loam. Permeability is moderately slow. Available water holding capacity is high. Runoff is slow, and the hazard of water erosion is slight. The hazard of soil blowing is severe. The soils are mildly to strongly alkaline (pH 7.4-9.0), nonsaline (EC 0-2), and slightly sodic (SAR 5-13).
Shiprock SSA:
175 – Suwanee loam
Additional information may be found in Section II of the Field Office Technical Guide.
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Predominant Parent Materials:
Kind:
Origin:
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Subsurface Texture Group:
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Minimum |
Maximum |
| Surface Fragments <=3" (% Cover): |
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| Surface Fragments > 3" (% Cover): |
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| Subsurface Fragments <=3" (% Volume): |
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| Subsurface Fragments > 3" (% Volume): |
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| Drainage Class:
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| Permeability Class:
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Minimum |
Maximum |
| Depth (inches): |
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| Electrical Conductivity (mmhos/cm): |
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| Sodium Absorption Ratio: |
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| Calcium Carbonate Equivalent (percent): |
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| Soil Reaction (1:1 Water): |
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| Soil Reaction (0.01M CaCl2): |
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| Available Water Capacity (inches): |
0.0 |
0.0 |
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Ecological Site Description
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