inscription
Portail d'information géographique

Résultats de la recherche (36852 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre Par ville ? Par pays ? Par continent ?
Urbanisation et degradation de l environnement physique dans les quartiers-est de Libreville : PK 6-PK 11
  • Urbanisation et degradation de l environnement physique dans les quartiers-est de Libreville : PK 6-PK 11
  • Libreville - Gabon - Afrique Centrale - Afrique - Urbanisme - Aspect de l environnement - Condition Sociale
Soil degradation in Sardinia. Historical causes and current processes due to anthropogenic pressure.
  • Dégradation de l'environnement et désertification.
  • Soil degradation in Sardinia. Historical causes and current processes due to anthropogenic pressure.
  • Degradation-Desertification.
Agriculture developpement and land degradation in the Middle East since the neolithic period : the Israel Case.
  • Dégradation de l'environnement et désertification.
  • Agriculture developpement and land degradation in the Middle East since the neolithic period : the Israel Case.
  • Degradation-Desertification.
Land degradation: creation and destruction
  • Land degradation: creation and destruction
  • Action anthropique ; Dégradation de l'environnement ; Environnement ; Gestion des ressources ; Pression démographique ; Relation homme-environnement
  • Environment ; Environmental degradation ; Human impact ; Man-environment relations ; Population pressure ; Resource management
  • Excellent discussion of the physical and human interactions that result in land degradation. Material organized as either creative destruction and destructive creation - the two are linked for in the interest of sustaining human population, one must
  • first destroy in order to create. Thoughtful conclusion on how land degradation can be minimized. - (DWG)
Land degradation and the coastal environment of Nigeria
  • Land degradation and the coastal environment of Nigeria
  • Coastal environment ; Human impact ; Land use ; Nigeria ; Oil industry ; Regional planning ; Soil degradation
  • Action anthropique ; Aménagement régional ; Dégradation des sols ; Exploitation pétrolière ; Littoral ; Nigéria ; Utilisation du sol
  • This paper uses primary and secondary data sources to describe cases of land degradation based on the morphological units of Nigeria's shoreline. Anthropogenic influences accelerate land degradation along the coastline hence, the need
Applications of reflective remote sensing for land degradation studies in a Mediterranean environment
  • Applications of reflective remote sensing for land degradation studies in a Mediterranean environment
  • Ardèche ; Dégradation des sols ; Erosion des sols ; France ; Modélisation ; Rhône-Alpes ; Télédétection
  • Ardèche ; France ; Modelling ; Remote sensing ; Rhône-Alpes ; Soil degradation ; Soil erosion
  • The aim of this book is to investigate the role of remote sensing in understanding and modelling land degradation processes. The research was carried out in the southern part of Ardèche province in France. Several degradation features are found
  • DE JONG, S.M.
Halting land degradation
  • Halting land degradation
  • Action anthropique ; Cycle de l'eau ; Déboisement ; Dégradation ; Désertification ; Environnement ; Erosion des sols ; Géographie humaine ; Monde ; Surpâturage
The Ecology of resource degradation and renewal
  • The Ecology of resource degradation and renewal
  • Dégradation ; Ecologie ; Environnement ; Géographie de l'Europe ; Renouvellement ; Ressource ; Royaume-Uni
Agricultural growth, environmental degradation, poverty and nutrition : links and policy implications
  • Agricultural growth, environmental degradation, poverty and nutrition : links and policy implications
  • Agriculture ; Dégradation de l'environnement ; Développement rural ; Nutrition ; Pauvreté ; Production agricole ; Technique agricole
  • Agricultural production ; Agricultural technique ; Agriculture ; Environmental degradation ; Nutrition ; Poverty ; Rural development
  • The links and feedbacks between agricultural growth, environmental degradation, and poverty are complex and manifold. This paper examines these linkages under two situations : when new yield-increasing agricultural technologies are available
The fearful symmetry of Arctic climate change : accumulation by degradation
  • The fearful symmetry of Arctic climate change : accumulation by degradation
  • Arctique ; Changement climatique ; Dégradation de l'environnement ; Environnement ; Externalités ; Gestion des ressources ; Géopolitique ; Navigation ; Zone économique exclusive
  • Arctic Region ; Climatic change ; Environment ; Environmental degradation ; Exclusive economic zone ; Externalities ; Geopolitics ; Navigation ; Resource management
  • Cambio climático ; Degradación del medio ambiente ; Externalidades ; Geopolítica ; Gestión de los recursos ; Medio ambiente ; Navegación ; Zona económica exclusiva ; Ártica
  • The physical processes of climate change require a rethinking of the typical mechanisms of environmental degradation to account for the renewed possibilities for accumulation emerging in the Arctic. The effects of historic, fossil fuel combustion
  • are being organized into new regional production strategies that sharpen and deflect environmental degradation. The opportunities for new Arctic energy extraction and shipping are both heightened and complicated by contemporary geopolitics and commodity
  • JOHNSON, L.[b1]
The impact of environmental degradation on grain production in China, 1975-1990
  • The impact of environmental degradation on grain production in China, 1975-1990
  • Agriculture ; Chine ; Céréale ; Disparités régionales ; Dégradation de l'environnement ; Erosion des sols ; Productivité agricole ; Récolte ; Technique agricole
  • Agricultural productivity ; Agricultural technique ; Agriculture ; Cereal ; China ; Crop ; Environmental degradation ; Regional disparities ; Soil erosion
  • The AA. hypothesize that environmental degradation had a major effect on grain production in many of China's agricultural areas. A nationwide fixed effect grain-yield function is introduced which incorporates both traditional input variables
  • and an additional set of variables that reflect trends in environmental degradation at the provincial level. The model is estimated using time-series data for the period from 1978 to 1980.
Turismo, investimento e impacto ambiental
  • Tourisme, investissement et conséquences sur l'environnement
  • Dégradation de l'environnement ; Environnement ; Portugal ; Tourisme ; Tourisme de masse
  • Environment ; Environmental degradation ; Portugal ; Tourism
  • Le tourisme, phénomène de masse, dont la pratique peut entraîner de graves accidents écologiques. Quelques données sur le tourisme au Portugal. - (CAM)
  • CUNHA, L.
Ecocide in Babylonia
  • Conflit ; Dégradation de l'environnement ; Environnement ; Guerre du Golfe ; Géographie politique ; Koweït ; Pollution ; Protection de la nature
  • Conflict ; Environment ; Environment degradation ; Gulf War ; Kuwait ; Nature conservation ; Political geography ; Pollution
  • CUTTER, S. L.
A Comparative study of land degradation in Baringo and Machakos Districts, Kenya in African Resources. Volume 2. Management.
  • A Comparative study of land degradation in Baringo and Machakos Districts, Kenya in African Resources. Volume 2. Management.
  • Action anthropique ; Aménagement régional ; Climat ; Environnement ; Erosion des sols ; Géographie de l'Afrique ; Kenya ; Sol ; Utilisation du sol
  • Land degradation in two sub-humid to semi-arid districts of Kenya is related to the interrelationship of the physical and socio-political environment.
Land degradation and its control strategies in China
  • Land degradation and its control strategies in China
  • Boisement ; Chine ; Dégradation des sols ; Désertification ; Environnement ; Erosion des sols ; Erosion hydrique ; Erosion éolienne ; Gestion de l'environnement ; Nutriment ; Pollution ; Ressource en eau ; Salinisation ; Sol cultivé ; Statistique
  • Afforestation ; China ; Cultivated land ; Desertification ; Environment ; Environmental management ; Nutrient ; Pollution ; Salinisation ; Soil degradation ; Soil erosion ; Statistics ; Water erosion ; Water resources ; Wind erosion
  • Following the discussion of the causes and disasters of land degradation, this paper presents the achievements gained in prevention and control of land degradation since 1949. The several control strategic measures in combating land degradation
Resident's perspectives and responses to environmental degradation in the upper Dadu River, eastern Tibetan Plateau
  • Resident's perspectives and responses to environmental degradation in the upper Dadu River, eastern Tibetan Plateau
  • Bassin-versant ; Chine ; Dégradation de l'environnement ; Etude comparée ; Montagne ; Plateau ; Relation homme-environnement ; Risque naturel ; Stratégie d'acteurs ; Tibet ; Vallée ; Vulnérabilité
  • China ; Comparative study ; Decision making process ; Environmental degradation ; Man-environment relations ; Mountain ; Natural hazards ; Plateau ; Tibet ; Valley ; Vulnerability ; Watershed
  • This paper discusses how the residents in different regions in the upper Dadu River located at the southeast edge of the Tibetan Plateau understood and responded to environmental degradation. The study is based on comparative field surveys in 3
  • LIU, L.
Defining degradation : the impacts of swidden on forests in Northern Thailand
  • Defining degradation : the impacts of swidden on forests in Northern Thailand
  • Culture itinérante ; Dynamique de la végétation ; Défrichement ; Dégradation de l'environnement ; Environnement ; Ethnie ; Forêt ; Thaïlande
  • Environment ; Environmental degradation ; Ethnic community ; Forest ; Land clearing ; Shifting cultivation ; Thailand ; Vegetation dynamics
  • A reevaluation of the usual view that shifting cultivation leads to forest degradation, soil erosion, water shortages, and other undesirable changes. Author examines the swidden farming near three upland villages in northern Thailand. swiddens
An assessment of land degradation in the Save catchment of Zimbabwe
  • An assessment of land degradation in the Save catchment of Zimbabwe
  • Analyse d'image ; Bassin-versant ; Dynamique de la végétation ; Dégradation de l'environnement ; Système d'information géographique ; Utilisation du sol ; Zimbabwe ; Zimbabwe de l'Est
  • Environmental degradation ; Geographical information system ; Image analysis ; Land use ; Vegetation dynamics ; Watershed ; Zimbabwe
  • Identification d'espaces susceptibles d'être dégradés. La télédétection et les techniques de SIG sont appliquées au district de Buhera. Données : images Landsat de 1992 et 2002, zonage agro-écologique, couverture végétale et densité de population
  • . Cinq catégories de prédisposition à la dégradation sont distinguées.
Crossing the thresholds : human ecology and historical patterns of landscape degradation
  • Crossing the thresholds : human ecology and historical patterns of landscape degradation
  • Landscape sensitivity : principles and applications in northern cool temperate environments
  • Action anthropique ; Dégradation de l'environnement ; Ecologie humaine ; Erosion des sols ; Géographie historique ; Islande ; Modélisation ; Politique agricole commune ; Surpâturage ; Téphrochronologie ; Utilisation agricole du sol
  • Agricultural land use ; Common agricultural policy ; Environmental degradation ; Historical geography ; Human ecology ; Human impact ; Iceland ; Modelling ; Over-grazing ; Soil erosion ; Tephrochronology
  • The AA. assess the extent to which common land domestic grazing pressures were the primary external force causing soil erosion and land degradation during the period of occupation from ca. 874 AD in Southern Iceland. They first provide field
  • observation of soil erosion, temporally defined by tephrochronology, to highlight the extent of land degradation during this period. The tragedy of the commons explanation of degradation is then assessed by evaluating historic documentary sources
Komárom környezetminösitö alaptérképe
  • Estimation de l'environnement à partir de la carte de Komárom
  • Carte ; Dégradation de l'environnement ; Environnement ; Gestion de l'environnement ; Gestion des ressources ; Hongrie ; Loisir ; Protection de l'environnement ; Utilisation du sol
  • Environment ; Environmental conservation ; Environmental degradation ; Environmental management ; Hungary ; Land use ; Leisure ; Map ; Resource management
  • RÉTVÁRI, L.