Aridic Haplustert (Fine, smectitic, mesic) : 無料・フリー素材/写真
Aridic Haplustert (Fine, smectitic, mesic) / SoilScience.info
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
|---|---|
| 説明 | This profile was photographed in Yavapai County, Arizona. The soil is formed in basalt on a 2 percent slope. It is vegetated by grassland and sparse juniper and pinon pine. The soil is silty clay texture with slightly alkaline pH values in all horizons. Hard basalt rock is present at some depth below the bottom of the pit. (Tape is marked in feet.) The surface A1 horizon of 4 inches is strong granular structure. Below the A1 horizon the structure is extremely hard, when dry angular and subangular blocky with slickenside features indicative of the churning action in Vertisols as the soil shrinks when dry and expands when wetted. Although not visible in the photo the soil has 5mm or wider cracks that are open more than 210 days each year within 50 cm of the surface, i.e. the Aridic subgroup. The site is used for cattle grazing and wildlife. |
| 撮影日 | 2011-02-21 11:24:35 |
| 撮影者 | SoilScience.info , Raleigh |
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