Abstract
Two sedimentary cycles are documented for the southern Sahara zone of the Republic of Niger. Existing regional differences of the dust sediments in the northern Sahel argue against a supra-regional transportation. On the otherwise bare rock of the south Saharan high plateaus, the dust sediments allowed the formation of soils now bearing a loose wood and grass vegetation. Between the ancient dunes of the Sahel, (para-) Vertisols having formed on aeolian very fine-grained sediments as well, already occur in the scope of the 300mm-isohyetal line. Due to their water-retaining capacity, these soils provide the only locations at the agronomic dry margin where the cultivation of vegetables is possible. -from English summary
| Translated title of the contribution | Dust sedimentation in the North African Sahel - origin and effect on the landscape ecology of a large-scale semi-arid area |
|---|---|
| Original language | German |
| Pages (from-to) | 73-85 |
| Number of pages | 13 |
| Journal | Zeitschrift fur Geomorphologie, Supplementband |
| Volume | 89 |
| State | Published - 1991 |