Perspectives on prehistoric and recent gullying in central Zimbabwe in Soil erosion and host materials in Africa.

Auteurs :
SHAKESBY, R. A.
WHITLOW, R.

Description :
This investigation provides prehistoric and historical perspectives on the current erosion problem in extensive gully systems developed on sodic soils near St. Michael's Mission, central Zimbabwe. Specifically, the study focuses : 1) on the colluvial sediments exposed in the gully particularly with a view to determining the timing and nature of prehistoric gullying, 2) the main factors affecting gully growth since the 1940s, and 3) small-scale influences on present day headcut recession.


Type de document :
Article de périodique

Source :
GeoJournal, issn : 0343-2521, 1991, vol. 23, n°. 1, p. 49-58, Références bibliographiques : 32 réf.

Date :
1991

Editeur :
Pays édition : Allemagne, Heidelberg, Springer