Les intéractions rural-urbain : circulation et mobilisation des ressources Intégration horticulture-élevage dans les systèmes agricoles urbains de la zone des Niayes (Sénégal)
Rainfall disturbances, a consequence of the effects of climate change, aggravated by anthropogenic pressure on vegetation, are leading to the progressive disappearance of several adapted local plant species in the so-called "groundnut basin" and eastern Senegal. Also, the clearing of land for agriculture potentiates and amplifies this degradation. At this rate, the loss of most of the local plant, forage and forest resources will follow. As part of a multi-species census and collection of plant genetic resources for food and agriculture, an inventory of available forage resources in the groundnut basin and eastern Senegal was made. This inventory was made by field observations triangulated with interview data. The results show that the methods and level of exploitation of natural forage resources and crop residues differ from one area to another. The natural rangeland, which still constitutes the essential part of domestic ruminants feed in these regions, is in continuous degradation. In fact, this rangeland in groundnut basin is not very diversified like southern area, with a low index of quality and volume of pastures. Crop residues are abundant but not very varied. They represent an interest for the breeders of this zone and their sale prices can sometimes exceed those of the harvested products. This is a snapshot of the situation, valid for a given time. This situation is dynamic and can change significantly from one moment to the next. Nevertheless, the results obtained will make it possible to conceive methods of conservation and production of the identified species; in order to identify the best methods of management and sustainable use.
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