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The occurrence of bleached topsoils on weakly structured subsoil horizons in the Western Cape and Mpumalanga Provinces of South Africa
(Stellenbosch : Stellenbosch University, 2015-12)
ENGLISH ABSTRACT: Bleaching is a topsoil discolouration phenomenon recognised at family level within certain soil forms in the South African soil classification system. These topsoil horizons derive their name from the ...
Properties of bleached topsoils on apedal subsoils : analysis from the land type profile database
(Stellenbosch : Stellenbosch University, 2016-03)
ENGLISH ABSTRACT: Bleached topsoils that occur on red and yellow-brown apedal subsoils are poorly understood and taxonomically they are not distinguishable from their non-bleached counterparts. Bleaching of soils is an ...
Development, optimization and use of a reduced-sample, water dispersible clay extraction technique for taxonomic horizon discrimination
(Stellenbosch : Stellenbosch University, 2018-03)
ENGLISH ABSTRACT: Water dispersible clay (WDC) is defined as the colloid fraction which disperses in water without removal of cementing compounds or the use of dispersing agents. It is a commonly determined parameter and ...