Nonlinear responses of soil erosion to climate change: a modelling study on the UK South Downs
Experimental geomorphology and landscape ecosystem changes (proceedings memorial symposium Prof. Jan De Ploey)
Action anthropique ; Changement global ; Couverture végétale ; England ; Erosion des sols ; Modèle ; Précipitation ; Royaume-Uni ; Sol ; Utilisation du sol ; Variabilité climatique
Climatic variability ; England ; Global change ; Human impact ; Land use ; Model ; Plant cover ; Precipitation ; Soil ; Soil erosion ; United Kingdom
This paper considers only the indirectly anthropogenic influences of changed rainfall, temperature and CO2 content upon erosion. However changes in land use, and hence vegetation cover, are likely to be equally, if not more, important in determining
Modification of the effects of global climate change by plant cover structure in an agricultural landscape
Global change: polish perspectives 2
Bilan hydrologique ; Bilan thermique ; Changement global ; Couverture végétale ; Ecosystème ; Modèle ; Météorologie ; Paysage rural ; Pologne ; Végétation
Ecosystem ; Global change ; Heat balance ; Meteorology ; Model ; Plant cover ; Poland ; Rural landscape ; Vegetation ; Water balance
the growing season were taken into consideration. This analysis has shown that plant cover has mitigating capacities in relation to the presumed effects of global climate change. Thus, in attempts to predict global changes at local level, the mitigating
Changements récents de la teneur en dioxyde de carbone, oxyde de carbone et méthane et leurs effets sur le changement du climat mondial
Atmosphère ; Changement global ; Effet de serre ; Variation climatique
Atmosphere ; Climatic variation ; Global change ; Greenhouse effect
CO2, CO et CH4 jouent un rôle essentiel dans le déséquilibre radiatif de la Terre. Tout changement significatif de la teneur de l'atmosphère en l'un ou l'autre de ces gaz peut avoir des répercussions notables sur le climat. Or, la progression des
Air mass ; Atmospheric circulation ; Climatic variability ; Global change ; Model ; Season ; Synoptic climatology ; Temperature ; United States of America
Empirical climate change studies are more beneficial when they go beyond simply reporting fluctuations in average temperature. Ideally, dynamic causes of the change should also be addressed. The analysis of air masses can play a central role
in this approach. Changes in their distribution and characteristics point to modifications in the mid-latitude general circulation. The integrated method air-mass classification scheme was applied to this problem in the north central United States (NCUS) over
Disparités régionales dans le changement social en Autriche pendant l'après-guerre
Autriche ; Changement social ; Classe sociale ; Consommation ; Disparités régionales ; Société ; Société rurale ; Société urbaine ; Structure sociale
Austria ; Consumption ; Regional disparities ; Rural society ; Social change ; Social class ; Social structure ; Society ; Urban society
Pour la première fois les dimensions et les changements concernant les disparités spatiales du changement social en Autriche sont présentés de façon détaillée. L'analyse montre que la variance de la majorité des indicateurs du changement social
Agricultural productivity ; Agroclimatology ; Bangladesh ; Climatic variation ; Global change ; Model ; Rice ; Seasonal variation ; Temperature
In this study, the climatic crop productivity model YIELD has been applied to calculate rice productivity for the boro rice growing season (December/January-May) in Bangladesh under changing climatic conditions. The model estimates climatic
influences on various rice plant-growth parameters. The model was run using long-term average climate data of 12 meteorological stations located in the major rice-growing regions in Bangladesh to establish baseline estimates of yield. For the climate change
Chemical alteration ; Climatic warming ; Duricrust ; Geochemistry ; Global change ; Lapland ; Microstructure ; Pedogenesis ; Sweden ; Weathering
. Static studies provide baseline information on the geochemical process system, essential for understanding process responses to environmental change.
Changement global ; Développement durable ; Enseignement de la géographie ; Enseignement secondaire ; Environnement ; Pollution
Environment ; Global change ; Pollution ; Secondary education ; Sustainable development ; Teaching of geography
Report on three modules about environment issues for use in secondary schools that might be used at a national level in the USA to provide a common standard on teaching about pollution, global climate change, and sustainable agriculture. - (DWG)
Changes in the age of farmers in New Zealand, 1971-1991
Une analyse des données des cinq recensements de 1971 à 1991 montre les évolutions pas toujours régulières de l'âge moyen des agriculteurs ainsi que des changements dans la distribution par groupes d'âges des cinq catégories d'agriculteurs
Changement global ; Communauté rurale ; Développement durable ; Développement rural ; Environnement ; Milieu naturel ; Montagne ; Peuplement ; Prospective
Environment ; Global change ; Mountain ; Natural environment ; Prospective study ; Rural community ; Rural development ; Settlement ; Sustainable development
The study of the many different types of mountain communities that exist throughout the world is of fundamental importance to research into Global Change. The question of the mountain-dwelling populations is an urgent matter for government at all
On the changing agricultural structure and its geographic studies
La structure agricole est définie comme une combinaison interactive de facteurs contrôlables qui constitue le support du système. Structure dynamique qui change avec le développement économique et la modernisation.
This paper briefly surveys landscape evolution theories with respect to the implications for changes in relief amplitude. Then a theoretical framework is presented that explicitly links changes in differences in elevation over time in a landscape
with the mathematical properties of chaotic systems. Finally, a link between changes in relief amplitude and chaotic behavior is established and the stable/nonchaotic and unstable/chaotic modes of topographic evolution are identified.
This paper reports the results of an investigation into the changes in ped shape encountered in a soil under permanent grassland representing a relatively stable soil environment through a calendar year. To augment the ped shape information, some
, and to link these with seasonal changes as indicated by meteorological data, change in biomass, and change in ped stability.
Accord international ; Changement global ; Diversité biologique ; Effet de serre ; Environnement ; Fiscalité ; Gestion de l'environnement ; Politique gouvernementale ; Pollution ; Protection de l'environnement ; Transfert de technologie
Biodiversity ; Environment ; Environmental conservation ; Environmental management ; Global change ; Government policy ; Greenhouse effect ; International agreement ; Pollution ; Taxation system ; Technology transfer
This paper discusses global environmental problems such a climate change and biodiversity conservation, and reviews policies to address them. Two broad groups of instruments are analyzed: taxes and marketable permits. The paper concludes
Diurnal changes in the isotope composition of atmospheric CO2 in Kraków
Global change: polish perspectives 2
The AA. present the preliminary results of measurements of diurnal changes in the isotopic composition of atmospheric CO2 in Kraków. They present four experiments done in different seasons of the year. Results show that the isotope composition
Hypertemporal analysis of remotely sensed sea-ice data for climate change studies
Climatologists have speculated that a spatially coherent pattern of high-latitude temperature trends could be an early indicator of climatic change. The sensitivity of sea ice to the temperature of the overlying air suggests the possibility
that trends in Artic ice conditions may be useful proxy indicators of general climatic changes. In particular, analyses of passive microwave imagery can provide us with daily information on sea-ice extent, type, concentration, dynamics and melt onset.
Rôle de l'évolution démographique dans la dégradation de l'environnement, compte tenu des changements dans l'utilisation des ressources spécifiques de cette région. Les nouvelles pratiques dans l'utilisation du sol désavantagent les terrains
Visualizing changing social structure from a census
Cartographie thématique ; Catégorie socio-professionnelle ; Changement social ; Ethnie ; Great Britain ; Recensement de la population ; Royaume-Uni ; Structure sociale ; Technique cartographique
Cartographic technique ; Ethnic community ; Great Britain ; Population census ; Social change ; Social structure ; Socio-professional category ; Thematic mapping ; United Kingdom
Changement dans la structure agraire du Land de Brandebourg
Dans cet article, après un aperçu sur quelques conditions cadre, on a tenté d'expliquer quelques résultats et problèmes du changement de structure agraire dans le Brandebourg - plus particulièrement les changements dans les structures socio
-éconoiques, l'utilisation du sol et l'élevage - 5 ans après le changement politique. - (L'A.).