claypan


Also found in: Dictionary, Wikipedia.

claypan

[′klā‚pan]
(geology)
A stratum of compact, stiff, relatively impervious noncemented clay; can be worked into a soft, plastic mass if immersed in water.
References in periodicals archive ?
Nelson KA, Motavalli PP (2013) Nitrogen source, drainage, and irrigation affects com yield response in a claypan soil.
sat] values that severely limit downward percolation, such as cemented layers (duripan, petrocalcic), claypans (abrupt increases in clay content) and strongly contrasting particle size distributions.
Delineating productivity zones on claypan soil fields using apparent soil electrical conductivity.
on the edge of the claypan dad's dogs leapt out of the station
Spatial characteristics of claypan soil properties in an agricultural field.
Phosphorus loss and runoff characteristics in three adjacent agricultural watersheds with claypan soils.
Soil Carbon Dioxide Efflux from a Claypan Soil Affected by Surface Compaction and Applications of Poultry Litter, 109 AGRIC.
Claypan, hardpan, and tight alluvial soils are examples.
They are formed by an impermeable layer of clay, known as claypan, which lies two to four feet below the surface and prevents rainwater from filtering further into the ground.
Erosion has caused topsoil loss on many claypan soils.
Subsoiling--Tilling a soil below normal plow depth, ordinarily to shatter a hardpan or claypan.
It is also concentrated along the Michigan peninsula, in central Wisconsin and Minnesota, in the claypan soils of eastern Texas, and on the tablelands of central Nebraska.