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(Article of periodic en Anglais - 2002)

Document title

Holocene environmental change in the Otjiwarongo thornbush savanna (Northern Namibia) : evidence from soils and sediments

Authors(s) and Affiliation(s)

EITEL B. ; EBERLE J. ; KUHN R. ;

Abstract

In the Otjiwarongo region, Vertisol-Kastanozem-Calcisol soil associations occur as patches of several hundred hectares in extent. They have formed in fine-grained Mid-Holocene sediments. Kastanozem formation cannot be explained by the environments that exist at present. The humification suggests open savanna environments in the past and does not accord with the shrublands and thornbush savanna at present. Using AMS C 14 and OSL data, it is possible to distinguish 2 periods of soil degradation during the recent past. Degradation of vegetation and soils, and river channel formation, seem to be the main causes of farmland aridification

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2002, vol. 47, no1 [pp. 43-62]

Bibliographic references : 56 ref.

Collation : Illustration ;

Language

Anglais

Localisation

Bureau de recherches géologiques et minières - Orléans

INIST-CNRS, Cote INIST : 16767

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2002.
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