Résultats de la recherche
Showing items 1 through 9 of 19.
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Library Resource
Ever since colonial administrators and western trained scientists became involved in sub-Saharan Africa in the early 20th century and were faced with the task of governing countries where livestock production was a major economic enterprise, the proper utilisation of rangelands became a major concern. While during most of the colonial era devastating epidemics (like rinderpest and pleuropneumonia) kept the growth of livestock populations in check, during the 1950s and 1960s regional campaigns of eradicating these major cattle diseases created a continuous increase in livestock numbers.
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Library Resource
Such is the vagary of rainfall throughout Africa's rangelands that almost all pastoral communities face cycles of good and hardship years. During good years herders increase and diversify their herds, whilst consecutive hardship years or `pastoral drought,' human and livestock disease, or livestock theft may result in large livestock losses and the consequent temporary collapse of household food production.
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Library Resource
États-Unis d'Amérique, Afrique sub-saharienne, Amérique septentrionale, Amérique latine et Caraïbes
It is clear from the failure of our efforts in many countries to halt the desertification process - deserts are now advancing at a rate of nearly 15,000,000 acres a year worldwide (Worrall 1984) (that something was missing in our knowledge of the problem). Four discoveries have been made that enabled us to design a simple holistic model to manage resources successfully in a sustained and economic manner.
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Library Resource
République arabe syrienne, Asie occidentale, Afrique septentrionale
This article looks at the changes which are taking place in the Syrian semi-nomadic bedouin flocks' feeding and migration patterns, and the historical reasons for these changes. Most of the discussion will focus on three steppe-based villages in northern Syria, where the International Center for Agricultural Research in Dry Areas (ICARDA) undertook a three-year survey between 1978 and 1981, and where a follow-up study was done this year.
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Library Resource
Botswana, Afrique sub-saharienne
Recent arguments have stated that the new livestock development policy will carry a high social cost, that the reality of range degradation in Botswana has been ignored, and that there is no basis for assuming that de-stocking would decrease the productivity of rangeland.
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Library Resource
This paper examines the decline of common property resources in the arid zone of Rajasthan in India and the factors underlying the decline.The article concludes that:well-intentioned public programmes like land reformcan deprive a region of its comparative advantage in a key economic activity (in this case livestock farming)privatisation raises the cost of livestock raising and, hence, erodes the the region's comparative advantagethe continuing shrinkage and degradation of common property resources is likely to force further reduction in the size of livestock holdings and changes in their c
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Library Resource
Botswana, Zimbabwe, Afrique sub-saharienne
This article suggests that communual rangeland management policies in Botswana and Zimbabwe are based on incorrect technical assumptions about the stability of semiarid rangelands, the nature of rangeland degradation, and the benefits of destocking. Consequently, inappropriate policies, stressing the need to destock and stabilise the rangelands, are pursued.Acknowledgement of the great instability but intrinsic resilience of rangeland would encourage the Governments to more favourable regard the opportunistic stocking strategies of the agro-pastoralists of the Communual Areas.
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Library Resource
Botswana, Afrique sub-saharienne
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 to co-operative action and development project approaches and in the communal areas of Botswanahe communal grazing cell scheme was badly designed.
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Library Resource
Botswana, Afrique sub-saharienne
A useful debate is developing over carrying capacity and the degradation of communal rangelands in sub-Saharan Africa. With a few lonely exceptions, scientists and policy-makers have in the past claimed that degradation is universal and livestock productivity lowered because of overstocking on communal range. This position has been mainly dogmatic. More recent research has not supported dogmatists; hence the debate, which impinges on livestock development policy in Botswana.A new livestock development policy is being promoted by the Government of Botswana (Ministry of Agriculture 1991).
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Library Resource
Mali, Afrique sub-saharienne
This article begins with an investigation into woodland management in Mali and moves onto a discussion of some of the fundamental practical problems associated with a major part of forest policy in Mali.
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