inscription
Portail d'information géographique

Résultats de la recherche (11565 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre Par ville ? Par pays ? Par continent ?
  • Mediterranean agriculture - an agro-ecological strategy
  • Agricultural practice ; Agriculture ; Agroecosystem ; Arid area ; Concept ; Irrigation ; Land use ; Mediterranean States ; Mediterranean area ; Rural landscape
  • The Mediterranean region is an area of heterogeneity. Consequently the Mediterranean agriculture is an agro-ecological strategy, an adjustment to particular climatic conditions in Mediterranean zones. In traditional agriculture the components could
  • be combined in an integrated system. In modern, specialized agriculture the Mediterranean agriculture to a higher degree becomes a type on a regional level. Agricultural types determine the landuse and are important for the development of rural landscapes.
  • Desertification in mediterranean basin. The effect of agricultural management
  • Agriculture ; Agroclimatology ; Climate ; Desertification ; Drought ; Impact ; Mediterranean States ; Mediterranean climate ; Portugal ; Water budget
  • Response of past and present Mediterranean ecosystems to environmental change
  • Adaptation ; Biodiversity ; Climatic variation ; Desertification ; Ecosystem ; Holocene ; Human impact ; Mediterranean States ; Mediterranean area ; Quaternary
  • and coupling of Mediterranean, North Atlantic and Greenland records. For the Holocene, there is continued debate about the relative impact of anthropogenic activity, but there is also increasing recognition that mediterranean-type ecosystems should
  • The chronology of human cultures in Europe and the Mediterranean Basin according to 14C dating
  • Archaeology ; C 14 dating ; Civilization ; Europe ; Mediterranean States ; Palaeogeography ; Postglacial ; Quaternary
  • 14C ages related to human cultures, cultivated plants and native flora in Europe and in Mediterranean area allowed us to build a time succession for the evolution of the human cultures compared with cultivations and the diffusion of native flora
  • Mediterranean thinking : from netizen to medizen
  • Civilization ; Cyberspace ; Epistemology ; Historical account ; Internet ; Mediterranean Sea ; Mediterranean States ; Perception ; Sea
  • Mediterranean ecosystems : problems and tools for conservation
  • Biodiversity ; Biogeography ; Ecosystem ; Environmental conservation ; Geographical information system ; Human impact ; Mediterranean States ; Mediterranean area ; Spatial analysis ; Vegetation ; World
  • Mediterranean ecosystems rival tropical ecosystems in terms of plant biodiversity. This rich biodiversity and the complex biogeographical and political issues make conservation a difficult task in the region. Species, habitat, ecosystem
  • Mediterranean Smyth : William Henry Smyth cartografo del Mediterraneo
  • Mediterranean Smyth : William Henry Smyth, cartographe de la Méditerranée
  • Cartography ; History of cartography ; Mediterranean Sea ; Mediterranean States ; Nineteenth Century
  • Clay illuviation in Red Mediterranean Soils
  • Special Issue. Red Mediterranean soils
  • Aeolian dust ; Arid area ; Carbonate ; Clay mineral ; Climatic variation ; Concept ; Dating ; Geochemistry ; Lateritic soil ; Mediterranean States ; Mediterranean area ; Red soil ; Soil ; Soil classification ; Soil properties ; Taxonomy
  • This paper shows the reality of clay illuviation in Red Mediterranean soils under present day environmental conditions, and examines the effects of time and climatic fluctuations during Holocene and Pleistocene on this soil forming process. Textural
  • features and fabrics existing in Red Mediterranean soils are inventoried. The problem of age determination is also addressed, through the use of radiometric dates and correlation with archaeological artifacts.
  • Biogeography ; Forest ; Human impact ; Mediterranean States ; Mediterranean area;Mediterranean region ; Subtropical zone ; Vegetation
  • Olive oil, the Mediterranean and the world
  • Diffusion ; Food ; Food consumption ; Food habit ; Mediterranean States ; Oil seeds ; Olive tree
  • A first bibliography of modelling climate impacts on Mediterranean Type Ecosystems (MTE) at the landscape level
  • Bibliography ; Climate ; Ecosystem ; Global change ; Internet ; Mediterranean States ; Modelling
  • Agriculture ; Environment ; Humid environment ; Mediterranean States ; Mediterranean area ; Rural change
  • Rates of fluvial erosion in basins with a mediterranean type climate
  • California ; Catchment area;Watershed ; Chile ; Climate ; Climatic zone ; Fluvial erosion ; Human impact ; Israel ; Mediterranean area;Mediterranean region ; Northern Africa ; Precipitation ; Sedimentation ; Spain ; Subtropical zone ; United States
  • Bibliography ; Biogeography ; Forest ; Mediterranean States ; Mountain ; Taxonomy ; Vegetation
  • The classification, distribution, and extent of soils with a xeric moisture regime in the United States
  • Special Issue. Red Mediterranean soils
  • Evapotranspiration ; Mediterranean climate ; Soil ; Soil classification ; Soil moisture ; Soil properties ; Taxonomy ; United States of America ; Western United States
  • Soils with cool, moist winters and relatively warm, dry summers, a Mediterranean climate, are recognized as having a xeric moisture regime in Soil Taxonomy, and are classified mostly in taxa that use the formative element xer in the name
  • . In the western part of the United States, soil series with either a xeric moisture regime or an aridic regime bordering on a xeric moisture regime make up more than 48,640,000 ha. They are classified in the orders of Mollisols, Aridisols, Alfisols, Inceptisols
  • Modelling vegetation interactions with channel flow in river valleys of the Mediterranean region
  • The sensitivity of the Mediterranean environment to degradation caused by land use and climate change. Special issue
  • Channel geometry ; Desertification ; Flood ; Impact ; Mediterranean States ; Model ; Natural hazards ; Semi-arid area ; Simulation ; Stream ; Stream flow ; Vegetation
  • Flooding and erosion are major hazards in semi-arid areas. As a result of climate and/or land use changes these hazards could increase. Vulnerable areas include the Mediterranean region of southern Europe. In this paper the selection
  • Arid land;Arid environment ; Climatic geomorphology ; East Mediterranean Sea ; Geomorphogenesis ; Greece ; Mediterranean Sea ; Mediterranean States ; Mediterranean area;Mediterranean region ; Palaeoclimatology ; Quaternary ; Research technique
  • Physical changes in the Mediterranean Basin (with particular reference to italy)
  • Atmospheric circulation ; Coastal environment ; Deforestation ; Geosystem ; Global change ; Human impact ; Italy ; Karst ; Land use ; Mediterranean States ; Mountain ; Permafrost ; Slope ; Soil erosion ; Tree line
  • relationship in this peculiar region: the main characteristics of the Mediterranean basin; the climatic conditions; the human settlements and the land use; the mediterranean and the global changes; Italy as a case study; seas and coatal areas; plains and inner
  • Special issue. Geomorphic response of mediterranean and arid areas to climate change
  • Arid area ; Climatic variation ; Crete ; Desert ; Ecosystem ; Geo-ecology ; Greece ; Israel ; Mediterranean States ; Mediterranean climate ; Methodology ; Soil erosion ; Spain ; Vegetation degradation
  • Studies of geo-ecological processes are being made along climatological transects on similar limestone rocks at different locations across the Mediterranean. The initial objectives were firstly to obtain information on relationships between climate
  • conditions and soil erosion and secondly, to study the changes that occur across major eco-geomorphological zones (i.e., zones in which particular soil-water-vegetation erosion relationships exist) on limestone in a progression from humid Mediterranean
  • Quaternary glacial history of the Mediterranean mountains
  • Bibliography ; C 14 dating ; Geochronology ; Glacial cycle ; Glaciation ; Mediterranean States ; Mediterranean area ; Mountain ; Palaeoclimate ; Periglacial features ; Quaternary
  • characterised by detailed understanding of the geochronology of glacial sequences using radiometric dating alongside detailed sedimentological and stratigraphical analyses. It is now clear from radiometric dating programmes that the Mediterranean region have