This work investigates the late Quaternary evolution of the Madeira River, the biggest southern tributary of the Amazonas Basin and a major waterway in South America, with the goal of discussing the factor with highest potential of influence on its
an important role in the equilibrium state of this particular fluvial system.
Amazonas ; Brazil ; Canada ; China ; Egypt ; Environmental management ; Hydraulic works ; Mississippi ; Nile ; River ; Saint-Laurent ; United States ; Yangtze
Amazonas River ; America ; Biodiversity ; Brazil ; Discharge ; Ecosystem ; Fauna ; Floodplain ; Fluvial hydrology ; Fluvial processes ; Mississippi ; Model ; Papua New Guinea ; River bed ; Seasonal variability ; United States of America ; Vegetation
Accumulation fluviatile ; Amazonas rio ; Amazonie ; Biodiversité ; Biogéographie ; Brésil ; Cours d'eau ; Datation C 14 ; Géologie régionale ; Pará ; Pléistocène ; Quaternaire ; Réseau de drainage ; Sédimentologie ; Télédétection
Amazon Basin ; Amazonas River ; Biodiversity ; Biogeography ; Brazil ; C 14 dating ; Drainage network ; Fluvial deposit ; Pará ; Pleistocene ; Quaternary ; Regional geology ; Remote sensing ; Sedimentology ; Stream
dating. The area emphasized in this work includes a 300-m-wide belt on both sides of the Amazon-Solimoes River, from Tabatinga, near the Colombia border, to Gurupa, in the state of Para. The results provide new elements for the reconstruction
of rainfall and evaporation of soil water upon the changes in soil CO2. Fieldwark was carried out in the vicinity of Novo Aripuana City in the Brazilian State of Amazonas.
The State and the land question of the frontier. A geopolitical perspective
Amazonas ; Appropriation du sol ; Brésil ; Capitalisme ; Colonisation agricole ; Conflit ; Développement rural ; Développement régional ; Exploitation minière ; Front pionnier ; Géographie de l'Amérique ; Géopolitique ; Latifundia ; Mise en valeur
highway BR 319, on the border of Amazonas and Rondônia states, in southern Amazon, Brazil. The results indicate that extensive forested areas existed in the Amazon during the last glaciation and that savanna vegetation expanded in response to warm and dry
Amazonas ; Bovin ; Brésil ; Développement régional ; Elevage ; Elevage extensif ; Environnement ; Géographie humaine ; Intégration économique ; Rôle de l'Etat ; Sous-développement
The study analyses the role of beef cattle raising whithin the whole of the activities directed to the economic and social integration of the Brazilian Amazonia. Attention has been paid to the role of the state, the characteristics of the cattle
The clay sample used in this investigation was obtained from the Nhamundá area, Amazonasstate, North of Brazil, Amazon region. This investigation reports the use of original and modified smectite clays as alternative absorbents for extraction
[b3] Chemistry Inst., State Univ. of Campinas, São Paulo, Bresil
Amazon Basin ; Brazil ; Colombia ; Economic geography ; Export ; Frontier ; Importation ; Regional development ; Role of the State ; Trans-border area ; Trans-border cooperation
Nation-states, quasi-states, and collapsed-states in contemporary Africa
The state idea
Africa ; Colonization ; Conflict ; Ethnic community ; Nationalism ; Political geography ; State
The successor states to the colonial empires in Africa exhibit the same strains as the fragile successors to the European empires earlier in the century. The survival of these quasi-states has been dependent upon the support of the international
community. Anti-colonialism offers little support for states in a post-colonial, post Cold-War era. In some cases the result has been disintegration and the emergence of the collapsed state.