Abundant information is available on West African drought and its hydrological and
environmental impacts. Land-use and climatic changes have greatly modified the conditions of …

Since the opening of the Sidi Salem dam on the watercourse of the Medjerda, in 1981, an
alarming narrowing of the riverbed in the lower valley has been observed. This geo-…

Estimating catchment scale soil loss based on rainfall simulators is often hampered by the
difficulty to scale up simulator results. Our objective was to develop and test a method for …

Wetlands are highly dynamic and productive systems that have been under increased pressure
from changes in land use and water management strategies. In Eastern Africa, wetlands …

In West Africa, tick-borne relapsing fever is due to the spirochete Borrelia crocidurae and its
geographic distribution is classically limited to the Sahel and Saharan regions where the …

West Africa has been experiencing drought conditions since the end of the 1960s. This
pattern has been particularly evident in the Sahel, but appears to have attenuated in the last …

Soil erosion due to water is a major environmental problem in many parts of the world. Most
of Mediterranean countries are concerned because of their specific climate and soils …

Timimoun is located in the hyper-arid zone of the Sahara, with an annual rainfall not exceeding
100 mm/year. To fill the shortage of rainfall, the oasis has developed a traditional means …

Wetlands, such as those of the Tana River Delta in Kenya, are vital but threatened ecosystems.
The flooding characteristics of wetlands largely determine their physical, chemical and …

L'étude des conséquences de la sécheresse sur les écoulements des petits bassins versants
d'Afrique soudanosahélienne nécessite la constitution de chroniques de ruissellement. A …