Historical changes of the regional and global hydrological cycles in Global Change.
The land-ocean ratio, periodical alternation of the epochs of orogenesis and peneplanation, time-space changes of solar influx determined the periodical changes of the global hydrological cycles with development of the continental glaciations
and permafrosts, or large pluvial epochs of general warming. At present an ever greater impact on the changes of the hydrological cycle is produced by human activities and the recent climatic warming.
Global Change : some concepts and problems of geographical research (a few results of the Soviet-American Project) in Global Change.
After outlining the background of the IGPB (International Geosphere-Biosphere Programme), the AA. conclude that understanding of global change cannot be gained fully without reconstruction of earlier landscape processes, more sophisticated modelling
of the dynamics of present-day landscapes, analysis of the causes and consequences of anthropogenic changes in specific regions, appraisal of the conditions in which societies may respond to the new knowledge of those changes, and a greatly enhanced geographic
Social change and fresh-food marketing in Singapore
Alimentation ; Changement social ; Circuit de distribution ; Commerce alimentaire ; Géographie de l'Asie ; Habitude de consommation ; Produits frais ; Régime alimentaire ; Singapour
There are changes in the patterns of food consumption, marketing behaviour, fresh food supplies and their distributing systems. The A. analyses how several factors have affected the changes, examines the major elements of the fresh-food distributing
Change in the anthropogenic geochemical impact on the biosphere in Global Change.
The A. singles out three main types of Man's geochemical impact : 1) indirect change in the natural geochemical processes| 2) direct technogenic migration resulting in the extraction of chemical elements and compounds in some areas and their being
This paper explores the processes and patterns of change in the central shopping district of Belfast between 1950 and 1970. The extent and characteristics of these changes are described, a simple model of city centre retailing change is presented
California ; Centre-ville ; Changement social ; Environnement urbain ; Etats-Unis ; Mobilité résidentielle ; Perception ; Processus cognitif ; Quartier ; San Diego ; Voisinage
California ; Cognitive process ; District ; Inner city ; Neighbourhood ; Perception ; Residential mobility ; San Diego ; Social change ; United States ; Urban environment
L'A. se demande quelle réponse les résidents d'un quartier apportent à un changement de leur environnement. La nature et l'organisation de leur perception de l'espace concerné doivent changer également. Application au centre-ville de San Diego
The greenhouse effect, climatic change and rising sea level : implications for development
Action anthropique ; Changement global ; Développement ; Effet de serre ; Niveau marin ; Prévision ; Tiers-Monde ; Variation climatique
Climatic variation ; Development ; Forecast;Prediction ; Global change ; Greenhouse effect ; Human impact ; Sea level ; Third World
The AA. elaborate on the scientific basis underlying the greenhouse effect, climatic change and sea level rise, following by the implications for development. As well as presenting best current scientific judgements, they shall highlight major
uncertainties and resultant range of estimates for future change.
Some long-term and short-term geographical tasks in the Global Change Programme in Global Change.
The geographical tasks of the Programme are determined by the essence of the geographical approach to the study of global changes of the geosphere-biosphere system. This approach aims at the resolving of two types of questions : a) what local
and regional processes and phenomena, in which way and in what degree influence the global geosphere-biosphere system : b) in what regions the current or expected global changes will most likely manifest themselves and what will be the consequences.
Migration and residential social change : a longitudinal analysis of migration flows into, out, of, and within in Regards sur la mobilité socio-spatiale.
Catégorie socio-professionnelle ; Changement social ; England ; Géographie de l'Europe ; London ; Mobilité résidentielle ; Royaume-Uni
This paper analyses the role of migration in residential social change in London during the intercensal 1971-81 using data from the 1 % Longitudinal Survey. It compares the socio-economic composition of out-migrants from, and in-migrants to London
with the changing socio-economic composition of continuing residents, and it assesses the relative importance of migration and in-situ social change. - (JPD)
Allemagne ; Allemagne RDA ; Changement social ; Crise ; Dégradation de l'environnement ; Emigration ; Gestion urbaine ; Géographie de l'Europe ; Géographie politique ; Logement ; Révolution ; Société ; Ville
Débat sur la nature complexe et variée des changements enregistrés à l'échelle des villes de l'ex-RDA, depuis les événements de 1989 : crise sociale, politique, du logement, de l'environnement, économique.
Social, political and urban change in the GDR : scarcely existing socialism
Allemagne ; Allemagne RDA ; Changement ; Changement social ; Développement urbain ; Géographie de l'Europe ; Nationalisme ; Parti politique ; Politique ; Régime politique ; Société ; Système de valeurs ; Système économique ; Tradition
Mountain areas and global change : a view from the Canadian Rockies in Transformation of mountain environments.
Climate data as well as proxy records (fluctuations of glaciers and treelines) are presented to document change at various time-scales. Problems and possibilities of this two-pronged approach in studying future environmental change. - (DWG)
Changes in the rural landscape and the impact on flora. A retrospective case study using aerial photographs
The A. analyses the changes in the pattern of certain landscape elements, land use types and small biotopes, and to determine how these changes have influenced the occurrence of grassland plant species. This was accomplished by combining
Ocean change in global change. Introductory geographical analysis.
Contribution à la Regional Conference on Asian Pacific Countries, de l'UGI, tenue à Pékin du 13 au 20 août 1990. Donne une synthèse générale des problèmes des océans, en indiquant aussi les étapes de la recherche. - (MLG)
The AA. summarize the results of the international symposium The Earth as Transformed by Human Action held at Clark University, USA, in October 1987 with the purpose of inventorying human impact and environmental changes on the regional and global
scales, and on the conceptualization of the human dimensions of global change. Some perspectives of the further development of the international and interdisciplinary Earth Transformed project are also discussed.
Afrique ; Afrique du Nord ; Asie ; Changement social ; Famille ; Femme ; Migration ; Moyen-Orient ; Société ; Structure sociale
Africa ; Asia ; Family ; Middle East ; Migration ; Northern Africa ; Social change ; Social structure ; Society ; Woman
Parmi les 15 communications, citons : changement social et situation de la femme au Maroc; femmes et familles en Tunisie; famille et migration : l'immigration iranienne.
Action anthropique ; Cartographie ; Changement global ; Niveau marin ; Pays-Bas ; Prévision ; Variation climatique
Cartography;Mapping ; Climatic variation ; Forecast;Prediction ; Global change ; Human impact ; Netherlands (The) ; Sea level
The A. summarizes the effects of climatic changes in the past, indicates the different types of man-induced climatic changes and discusses the (potential) effects of these changes on the worldwide average sea-level. Thereafter a summary