On the classification and genesis of soils developed over acid volcanic material under humid tropical conditions. II.

Abstract

The formation of zonal soils on rhyolitic and daciiic tuffs is discussed, and profiles are described of seven zonal soils (distributed over four belts with podzols at 1500-2000 m, podzol-brown podzolic iniergrades at 1100-1500 m, brown podzolic soils at 1100-500 m, red-yellow podzolic soils at 500 m and less) and four intrazonal soils formed on andesitic-dacitic tuffs at low altitudes. Andosols, humic gley soils and grey hydromorphic soils are distinguished according to drainage impedance. (Abstract retrieved from CAB Abstracts by CABI’s permission)