Pelham soil series
Loamy, siliceous, subactive, thermic Arenic Paleaquults
Ultisols — strongly weathered, leached soils with a clay-enriched subsoil
Pelham is mapped on 1.93 million acres in 4 states, 40th nationally by area. In Georgia only three series cover more ground. It is the only series in the atlas that belongs to the great group Paleaquults. No other established series shares its family class.
- Depth
- Very deep
- Drainage
- Poorly drained
- Water movement
- Moderate
Where Pelham is mapped
1,931,388 acres in 93 soil survey areas, from current SSURGO data.
In the field
Drainage
Poorly drained
5 other atlas series are poorly drained, none of them Ultisols.
Soil depth
Very deep
Permeability
Moderate
- Parent material
- Marine/coastal plain sediments
- Landform
- Coastal plains
- Type location
- Georgia
How it is classified
- OrderUltisols
- SuborderAquults
- Great groupPaleaquults
- SubgroupArenic Paleaquults
- FamilyLoamy, siliceous, subactive, thermic Arenic Paleaquultsloamy particle-size classsiliceous mineralogy classsubactive cation-exchange activity classthermic soil temperature regime
Against other Ultisols
Pelham makes up 1.02% of all mapped Ultisols — the 12th largest of 1,278 series in the order.
Solum thickness (topsoil + subsoil)
173 cm over a median of 142 cm
Depth to the subsoil
66 cm over a median of 23 cm
Depth described
203 cm over a median of 178 cm
Its relatives
Horizon by horizon
| Horizon | Layer | Depth | Thickness |
|---|---|---|---|
| Ap | Topsoil: plowed | 0–15 cm0–6 in | 15 cm |
| Eg1 | Leached layer: gleyed: gray from wetness | 15–41 cm6–16 in | 26 cm |
| Eg2 | Leached layer: gleyed: gray from wetness | 41–53 cm16–21 in | 12 cm |
| Eg3 | Leached layer: gleyed: gray from wetness | 53–66 cm21–26 in | 13 cm |
| BEg | Subsoil with leached traits: gleyed: gray from wetness | 66–86 cm26–34 in | 20 cm |
| Btg1 | Subsoil: clay build-up, gleyed: gray from wetness | 86–127 cm34–50 in | 41 cm |
| Btg2 | Subsoil: clay build-up, gleyed: gray from wetness | 127–142 cm50–56 in | 15 cm |
| Btg3 | Subsoil: clay build-up, gleyed: gray from wetness | 142–173 cm56–68 in | 31 cm |
| Cg | Parent material: gleyed: gray from wetness | 173–203 cm68–80 in | 30 cm |
Sources: USDA–NRCS Official Series Description (revised 2007-04), Soil Classification database and SSURGO. Ranks computed by Soil Series Atlas. Method · Guides