By Antoon de Vos (auth.)

Africa isn't really referred to as one of many extra densely populated continents. but, the dangerous marks of man's actions could be visible there dramatically. lots of Africa's ecological zones are fragile. huge scale soil erosion, resul­ tant cycles of drought and flash floods, downgrading of fauna and flowers are recognized to many regularly methods, in addition to from particular exam of some parts. yet huge elements of Africa stay inaccessible. only a few scholars of Africa have the ability - or the tenacity - to trip over those giant components or into the hidden corners that lie past the well known routes of Africa. As FAO's nearby natural world and nationwide Parks Officer for Africa, ANTooN DE Vos had the possibility of vacationing commonly and learning and reporting at the acceleration of synthetic alterations in a lot of the continent. As an skilled practitioner of a tremendous and hard technology, ecology, he has made an important expert contribution with this publication. it's our wish that those that learn will probably be inspired to carryon the $64000 paintings and the worry with this topic to which Dr. DE Vos has dedicated quite a bit of his wisdom, strength and private commitments.

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Sample text

What has been experienced in the crisis of 1973 is the cumulative combined effect of several exceptional dry years and land degradation caused by man. This has highlighted the vulnerability of the present production systems. There is no doubt that as long as the degradation of the land continues similar crises will reoccur, each time probably with greater severity than before. The recent succession of dry years has brought to the fore the cost of neglecting long-term planning and the need for proper attention to limiting factors caused by ecological conditions in the development of the zone.

These are accessible for grazing during the dry season. Photo 4. Five years of subnormal rainfall brought severe drought and tragedy to Upper Volta in the Sahelian zone in 1973. During most of the year, the edge of the Sahara desert in eastern Niger is a parched, arid region. I t is here that several nomadic tribes roam on their never-ending search for water for themselves and their cattle; it is upon the latter that their livelihood depends. Portrait of a Foulani nomadic cattleman among his herd of zebu cattle.

50 Photo 7. Five years of subnormal rainfall has brought severe drought and tragedy to Upper Volta. Destitute nomads from Mali came to northern Upper Volta in search of pasture but found a wasteland. The carcass of a cow lies in the foreground. Photo: FAO. 51 Photo 8. Carcasses of animals lie around a camp of nomads in northern Upper Volta. Photo: FAO. 52 Photo 9. Subnormal rainfall has brought severe drought and tragedy to Upper Volta. This picture, taken inJune 1973, shows Peul nomads who have lost all their cattle and sit forlornly in a camp near Markoye.

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