Orthent

(redirected from Skeletal soil)

Orthent

[′ȯr·thənt]
(geology)
A suborder of the soil order Entisol, well drained and of medium or fine texture, usually shallow to bedrock and lacking evidence of horizonation; occurs mostly on strong slopes.
References in periodicals archive ?
Soil Properties Soil Soil Depth Code Soil Classification 1 Glacial Soil *** 2 Loamy Soil (Lithic Udorthents) Shallow 3 Loamy Soil (Typic Udorthents) Moderately Shallow 4 Fine loamy soil (Dystric Eutrochrepts) Moderately Shallow 5 Loamy skeletal soil (Typic Udorthents) Shallow 6 Loamy Soil (Lithic Udorthents) Very shallow 7 Loamy skeletal soil (Typic Udorthents) Moderately Shallow 8 Loamy skeletal soil (Typic Udorthents) Moderately Shallow 9 Loamy skeletal soil (Typic Udorthents) Moderately Deep 10 Coarse loamy soil (Typic Udorthents) Moderately Shallow 11 Coarse loamy soil (Typic Udorthents) Moderately Deep 12 Roack Outcrop *** 13 Coarse loamy soil (Typic Udorthents) Moderately Shallow Soil Erosion Area (ha) Code 1 *** 1460.
Gradual erosion of surface layers on certain slopes and depositions in gullies, however has led to the immature development of soil on the slopes and formation of skeletal soils embedded with stones and boulders.
The shallow skeletal soils occur over hills/linear ridges and eroded parts of the plateau.
These include the effects of naturally occurring, mildly acidic rainfall (pH 5-6) falling on the skeletal soils with low buffering capacity and the addition of phosphate fertilisers, exacerbated by the removal of alkaline plant products from grazing and cropping (Helyar and Porter 1989; McBride 1994).