inscription
Portail d'information géographique

Résultats de la recherche (9 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • An assessment of socioecological impacts on East African mountain and highland environments : a case study from Tanzania
  • Environmental degradation ; Mountain ; Overexploitation ; Soil erosion ; Tanzania
  • Between 1960 and 1976, the Usambara mountains in northeast Tanzania underwent overexploitation. The A. discusses the roles of relief, climate, former colonial policies and regional migration in explaining this land deterioration.―(DWG)
  • 1992
  • From the « DUSER project » to « man-land interrelations... » A note on soil erosion research and conservation in central Tanzania, 1968-1992
  • Arid land;Arid environment ; Environment ; Human impact ; Natural resources ; Project ; Semi-arid area ; Soil conservation ; Soil erosion ; Tanzania
  • Brève revue concernant la recherche sur l'érosion des sols et la conservation des sols en Tanzanie, de 1968 à 1992 : note sur les principaux projets.
  • 1992
  • Chronology and paleohydrology of Late Quaternary high lake levels in the Manyara Basin (Tanzania) from isotopic data (18O, 13C, 14C, Th/U) on fossil stromatolites
  • Dating ; Isotope ; Lake level ; Palaeogeography ; Palaeohydrology ; Quaternary ; Tanzania
  • 1992
  • Conservation-with-development : an application of the concept in the Usambara Mountains, Tanzania
  • Agriculture ; Development ; Human impact ; Nature conservation ; Project ; Tanzania
  • 1992
  • Landform, soils and erosion in the north-eastern Irangi Hills, Kondoa, Tanzania
  • Catchment area;Watershed ; Catena ; Geomorphology ; Land use ; Rill wash;Runoff ; Sedimentology ; Soil erosion ; Soil science ; Tanzania
  • 1992
  • Environmental impact assessment of natural disasters, a case study of the recent Lake Babati floods in Northern Tanzania
  • Catastrophe ; Climatic data ; Climatic variation ; Flood ; Human impact ; Lake ; Lake level ; Land use ; Natural hazards ; Precipitation ; Tanzania
  • 1992
  • Ferralsol ; Grain size distribution ; Pedogenesis ; Soil ; Soil catena ; Tanzania ; Tropical zone
  • 1992
  • Competition ; Dar es Salaam ; Harbour ; Harbour facilities ; Harbour traffic ; Hinterland ; Tanzania ; Urban site
  • 1992
  • Africa ; Agricultural resources ; Cultivated land;Cultivated surface ; Eastern Africa ; Farming;Agriculture ; Kenya ; Land use ; Population growth ; Regional economy ; Rural population ; Soil degradation ; Soil properties ; Tanzania
  • 1992