The humid and subhumid tropics in African regions where rainfall exceeds potential evapotranspiration for five months or more include most of the area from Guinea through central Africa plus the southern part of East Africa.

Malnutrition is generally not perceived to be a pervasive problem in much of Africa, except during famines. There is little doubt that in "average" years, malnutrition in Africa is a smaller problem than it is in Asian countries such as Bangladesh, India, Nepal, or Sri Lanka.

This article discusses the zoning of 'Communual Areas' on tribal grazing land in Botswana, in which communities retain collective land rights.From the experience gained during six years of attempting to establish and operate communal grazing cells a number of conclusions can be drawn in relation

L'Afrique au sud du Sahara ou se situent les pays africains les moins avances a été décrite comme la seule grande région du monde ou le taux de croissance démographique continue à croître et ou la production alimentaire par habitant a baissé au cours des vingt-cinq dernières années.

A fundamental requirement for a national development strategy is an effective mapping programme. Information about the physical environment in the form of remote sensing imagery, coordinates, maps, digital data, cadastral data and land-use information is a basic tool in the planning, process.