Regenerative Cotton Fund

State of Interest: MS

Area of Interest: Yazoo River Basin

Separated into two primary landform types: Alluvial Plain and Loess Bluff Hills

The alluvial plain of the basin consists mostly of three different soil suborders

Aqualfs - naturally wet soils, presence of clay illuviation in subsurface horizons, likely formed under hardwood cover

Aquepts - naturally wet soils, poor horizon development, no illuvial horizon

Aquerts - naturally wet soils containing shrink and swell clays

The soils in the alluvial plain appear to mostly be poorly to somewhat poorly drained and to have a bit of a range in clay percentage.

However, because family particle-size classes take soil texture into account sometimes to a depth up to 50cm, it may not necessarily be a good representation of soil samples taken closer to the surface.

As you can see, quite a wide range of textures can be found in the first horizon in this region.

However, soils are composed primarily of just clay, silty clay, and silty clay loam textures when averaged at 0-25cm.

Map from SoilWeb "Soil Properties" application

Rock fragments do not appear to be a likely obstacle to sampling in Mississippi. However, high volumes of rock fragments may be found near the surface in other sampling states.

SoilWeb "Soil Properties" map