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Résultats de la recherche (112 résultats)

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  • Hydrology : catchment vegetation and runoff
  • Bibliography ; Climatic change ; Hydrology ; Impact ; Model ; Runoff ; The 2000's ; Vegetation ; Watershed
  • the hydrological impact of climate change is the relationship between catchment vegetation and runoff, which continues to be a productive area of research within hydrology.
  • 2009
  • Hydrological connectivity : linking concepts with practical implications
  • Concept ; Conceptual model ; England ; Environmental management ; Hydrology ; Land use ; Runoff ; System analysis ; United Kingdom ; Watershed
  • This paper will consider aspects that need to be taken into account for the practical application of hydrological connectivity, stressing the need of addressing an existing gap for the use of comprehensive field-based knowledge that includes both
  • 2009
  • A review of hydrological modelling of basin-scale climate change and urban development impacts
  • Bibliography ; Climatic change ; Hydrology ; Model ; The 2000's ; Urbanization ; Water management ; Water quality ; Water resources ; Watershed
  • This paper examines the combined modelling of climate change and urban development impacts on water quantity and quality. Hydrological impacts of climate change and urban development are likely to significantly affect future water resource
  • 2009
  • Effect of vegetation cover on the hydrology of reclaimed mining soils under Mediterranean-Continental climate
  • The aim of this investigation was to study the influence of the herbaceous vegetation cover on the hydrological response of reclaimed mining soils by means of simulated rainfall, in a Mediterranean-Continental environment (central-eastern Spain
  • ). The effect of herbaceous vegetation cover on soil hydrology was analysed by means of rainfall simulation in reclaimed soils derived from opencast coal mining (a non-saline and clay-loam textured spoil). The simulation experiments were conducted at 3 different
  • times throughout the year (late winter, summer and autumn) to control the influence of seasonal climatic fluctuations. Experiments were carried out at different times throughout the year to assess the seasonal influences on soil hydrology. As a practical
  • objective, the AA. aimed to identify an optimal threshold of vegetation cover to achieve satisfactory biological control of soil hydrology in the studied environment.
  • 2009
  • Occurrence and hydrological effects of water repellency in different soil and land use types in Mexican volcanic highlands
  • In this study the occurrence and hydrological effects of water repellency were investigated at a plot scale for different types of land use and volcanic soils in Mexican volcanic highlands from Michoacan, Mexico: [1] fir, pine and oak mixed forest
  • on recent ash sediments in plain surfaces. Shallow and irregular wetting fronts were observed at water-repellent zones, reducing the soil water storage capacity. The implications of soil water repellency in soil hydrology and erosion risk in the area shed
  • light on the soil hydrology of the studied ecosystems, and can contribute to develop better management policies.
  • 2009
  • Remote sensing : hydrology
  • Bibliography ; Evapotranspiration ; Hydrology ; Precipitation ; Remote sensing ; Sea level ; Snow ; Stream flow ; The 2000's ; Water budget
  • Over the last 10 years, the study of land surface hydrology using remote sensing techniques has advanced greatly with the launch of NASA’s Earth Observing System (EOS) and other research satellite platforms, and with the development of more
  • are observable by remote sensing, attempts to close the surface water budget from remote sensing alone have generally been unsuccessful, suggesting that current generation sensors and platforms are not yet able to provide hydrologically consistent observations
  • 2009
  • Hydrological responses to precipitation variation and diverse human activities in a mountainous tributary of the lower Xijiang, China
  • Carrying capacity ; China ; Climatic change ; Discharge ; Guangdong ; Human impact ; Hydraulic works ; Hydrology ; Precipitation ; Reforestation ; River regime ; Seasonal variation ; Stream ; Time series
  • The Luodingjiang River, a mountainous tributary of the lower Xijiang in South China, was chosen to investigate the hydrological responses to the precipitation variation and diverse human activities (land use change, water diversion, reservoir
  • seasonal changing patterns of both water discharge and sediment load in this study highlight the importance of involving monthly or seasonal time series in the change detection in hydrological data.
  • 2009
  • A review of hydrology research within the open eucalypt woodlands of tropical semiarid Australia : a possible source of baseline information for the West African Sahel
  • Arid area ; Australia ; Eucalyptus ; Forest ; Hydrology ; Over-grazing ; Queensland ; Semi-arid area ; Soil erosion ; Water erosion
  • 2009
  • Extreme hydrological events in karst areas of Slovenia, the case of the Unica River basin
  • In the case of particularly extreme hydrological conditions in the autumn of 2008, detailed analyses of the recharge-discharge regime and the interrelationship of flooding on two typical and connected karst poljes (Cerknica and Planina
  • ) of the Classical Karst region were done. Daily precipitation, discharge, and water level values from several monitoring sites were analyzed and cross-correlated, and additional hydrological analyses were done using a digital elevation model in order to acquire
  • water level increase and decrease intensity, flood water volumes, and the extent of flooding and to understand the conditions controlling karst flooding. The results reveal that the hydrological functioning of the studied karst poljes is influenced
  • by the hydrogeological and temporary hydrological conditions in the catchment area.
  • 2009
  • Forests exert a major influence on water regime. Interception is one of the major components of the water balance of overgrown areas so measurement of individual components of the forest hydrological cycle developed extensively in the last decades
  • . This paper shows methods of measurement of individual components of forest hydrological cycle and methods of modeling of intercepted precipitation. - (L'A.).
  • 2009
  • Neotectonics and current hydrologically-induced karst deformation. Case study of the Plateau de Calern (Alpes-Maritimes, France)
  • with classical hydrogeological monitoring tools in order to investigate the relationship between current karst deformation and hydrology. The best correlation between hydrology and tilts is observed for the deep aquifers. Finally, the long term variations in tilt
  • and water table show a very good correlation The relationship between current hydrological deformations and tectonics is also analyzed; broken and shifted speleothems in the shafts indicate a general shift of the plateau towards the south.
  • 2009
  • Dam ; Hydraulic works ; Hydrological regime ; Hydrology ; Impact ; Inventory ; Ivory Coast ; Remote sensing ; Runoff ; Water resources
  • 2009
  • Climatic variation ; Dam ; Hydrological regime ; Hydrology ; Impact ; Senegal ; Statistical analysis ; Test ; Time series
  • 2009
  • Based on measured hydrological data by using ship-mounted Acoustic Doppler Current Profiler (ADCP) instrument, the AA. analyzed shapes of river cross sections of the middle Yangtze River basin (mainly focusing on Makou and Tianjiazhen river reach
  • ). The hydrologic data of 36 river cross sections have been successfully obtained. In this paper, the AA. try to characterize the hydrodynamic properties of river knots, associated backwater effects and their implications for flood mitigation in the middle and lower
  • 2009
  • Alaska ; Arctic Region ; Flood ; Fluvial hydrology ; Hydrological regime ; River mouth ; Stream ; United States of America
  • 2009
  • Flood ; Flood control ; Hungary ; Hydraulic works ; Hydrology ; River regime ; Stream ; Watershed
  • in the natural regime of Hungarian rivers. The study focuses on the flood stages of Hungarian rivers and presents the special hydrological situation of the Lower Tisza district. - (AM)
  • 2009
  • Asian part of Russia ; Island ; Marine hydrology ; Nearshore zone ; Platform ; Sakhalin ; Upwelling ; Wind
  • 2009
  • The role of United Nations Educational, Scientific and Cultural Organization-International Hydrological Programme in sustainable water resources management in East Asian countries
  • In light of transboundary waters in IHP (International Hydrological Programme), RSC (Regional Steering Committee) plays a focal role for facilitating regional cooperation in the Southeast and East Asia and Pacific States. Furthermore, ISI
  • 2009
  • Advection ; Chlorophyll ; Diffusion ; Marine hydrology ; Measurement ; Oceanography ; Satellite ; Stochastic model ; Surface temperature ; Turbulence
  • 2009