Agro-ecological zoning of South Cuanza Province (Angola)
2002
Raposo, J.A.
A agro-ecological zoning study was developed for the province of South Cuanza in Angola. In this study the concept was adopted that land suitability is only meaningful when used in terms os specific kinds of land use. So, in this agro-ecological zoning process, the ecological land use requirements have been considered in relation to land qualities. The adjustment of this relation was evaluated for rainfed agriculture at the levels of ecological adaptability of crops, management of agro-systems and the sustainability of production. The study covers the conversion of the diverse cartographic and descriptive information into digital format which was put together into a single geo-referenced database. Subsequently, with the help of geographical analysis, several biophysical variables were inventoried and correlated in the sphere og geology/lithology, geomorphology, climate, vegetation and soil. This procedure led to delimitation of agro-geomorphological, agro-pedological and agro-climatical units. The combination of these three units resulted in new units with similar behaviour to the potential for agriculture production. After identification of these new units, 10 Major Land Units and 26 Agro-ecological Zones were delineated. The Major Land Units have similar suitability as related to internal and external soil properties, whereas the Agro-ecological Zones reflect the combined effect of climate and soil
Afficher plus [+] Moins [-]Mots clés AGROVOC
Informations bibliographiques
Cette notice bibliographique a été fournie par Ministério da Agricultura, Desenvolvimento Rural e Pescas
Découvrez la collection de ce fournisseur de données dans AGRIS