(Article of periodic en Anglais - 2012)

Document title

Making use of the World Reference Base diagnostic horizons for the systematic description of the soil continuum — Application to the tropical mountain soil-landscape of southern Ecuador

Authors(s) and Affiliation(s)

LIEß M. (1) ; GLASER B. (2) ; HUWE B. (1) ;
(1) Dept. of Geosciences, Soil Physics Group, Univ., Bayreuth, ALLEMAGNE
(2) Martin-Luther-Univ. Halle-Wittenberg, Soil Biogeochemistry, Halle, ALLEMAGNE


The World Reference Base for Soil Resources (WRB) (FAO, IUSS Working Group WRB, 2007) at present does not acknowledge the spatial soil continuum. Typical diagnostic horizon thickness and occurrence probability were predicted from terrain parameters by classification and regression trees (CART), throughout the research area in southern Ecuador. The 2 disadvantages of CART, abrupt prediction class boundaries and dependence on the dataset, were addressed by hundredfold model runs on different data subsets, leading to a range of possible predictions. Prediction uncertainty was included in the digital soil maps


Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2012, vol. 97 [pp. 20-30]

Bibliographic references : 44 ref.

Collation : 9 fig., 1 tabl.



INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2012.05.002

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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