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A geomorphological based banded (tiger) vegetation pattern related to former dune fields in Sokoto (Northern Nigeria)

The significance of soil, water and landscape processes in banded vegetation patterning

Auteurs :
ZONNEVELD, I.S.
VALENTIN, C.

Description :
The described banded vegetation pattern was observed on aerial photographs of the Northern part of Sokoto province in Northern Nigeria. The orientation of the bands (about NNW-SSE) is perpendicular to the prevailing wind direction (ENE-WSW) during the period of formation of the former dunes. The genesis of this pattern of regional scale appears to be quite different from local scale banded patterns known in dry zones in Africa and Asia and described as Brousse tigrée, being moving vegetation arcs related to sheet runoff and by consequence oriented perpendicular to that water flow.


Type de document :
Article de monographie

Source :
Catena (Giessen), issn : 0341-8162, 1999, vol. 37, n°. 1-2, p. 45-56, Collation : Illustration, Références bibliographiques : 26 ref.

Date :
1999

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena

Langue :
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)