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Clifton soil series GB

A representative soil profile of the Clifton series (Chromic Eutric Albic Luvic Stagnosols) in England. (Cranfield University 2021. The Soils Guide. Available: www.landis.org.uk. Cranfield University, UK.)

 

Soils classified and described by the World Reference Base for England and Wales:

www.landis.org.uk/services/soilsguide/wrb_list.cfm

 

Clifton soils consists of seasonally waterlogged soils developed in reddish fine loamy till and related glaciofluvial deposits. Clifton soils usually form on gently undulating terrain, but the land is deeply incised by rivers and streams in places. The soils are mainly under cereals and grass.

 

Mapped areas are extensive south and west of the Pennines, from south Staffordshire and Clwyd to the Scottish border. East of the Pennines it is restricted to Teesside. The till, mainly of Devensian age, is derived from Permo-Triassic sandstones and mudstones and is non-calcareous or decalcified to at least 80 cm depth. It is generally dense and slowly permeable, but contains occasional pockets of sand and gravel and, in many areas is overlain by coarse loamy glaciofluvial deposits, usually less than 70 cm thick with an irregular lower boundary. Because of the slowly permeable nature of the till, the soils are mainly typical stagnogley soils. Clifton series is developed where the overlying glaciofluvial deposits are absent or relatively thin (less than 40 cm thick) and the Claverley series, formerly classified as a deep sandy loam phase of the Clifton series, is found where this drift is thicker.

 

Clifton and Claverley series have slowly permeable subsoils and their upper horizons are seasonally waterlogged (Wetness Class IV). Drainage measures significantly reduce the duration of waterlogging in Clifton profiles (Wetness Class III), but have an even greater effect on Claverley soils. Like the Clifton series, Salwick soils are slowly permeable but, being on slopes, shed more water by surface run-off and their upper horizons do not stay wet for quite as long (Wetness Class III). Quorndon soils suffer from seasonal waterlogging by groundwater for most of the winter (Wetness Class III or IV). Underdrainage is very effective however and normally ensures that the soils stay well drained in all but the wettest seasons (Wetness Class I). In most of the soils, water moves laterally through the topsoil or immediate subsoil (above 40 cm depth) and, in general, they tend to shed excess winter rain.

 

The soils of the Clifton association are mainly under cereals and grass. Their major limitation is that of wetness but where drained, the soils produce good yields of common agricultural crops. In the Wolverhampton and Bridgnorth area, where the climate is relatively dry and topsoils are mainly coarse loamy and easily worked, potatoes and sugar beet are frequently included in the rotation.

 

The soils generally have a moderate cation exchange capacity and are inherently fertile. Although the parent material is often calcareous, with high percentage base saturation, soils are usually decalcified to below 1 m depth and topsoils need occasional dressings of lime. Amounts of naturally available phosphorus and potassium are small, especially in Quorndon and Claverley soils, but with regular fertilizer applications deficiencies are rare. There is normally a moderate and well balanced supply of trace elements, but manganese deficiency sometimes occurs where liming has raised the pH above neutral.

 

For additional information about the soil association, visit:

www.landis.org.uk/services/soilsguide/mapunit.cfm?mu=71114

 

For more information on the World Reference Base soil classification system, visit:

www.fao.org/3/i3794en/I3794en.pdf

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Uploaded on September 2, 2021
Taken in January 1990