Metaalzoutwinning in Groningen. De geschiedenis van een problematisch project. (The exploitation of metallic salts in the province of Groningen. The history of a problem project)
The discovery of metallic salts in the northern part of the Netherlands has put high expectations for industrialisation impulses. The author shows how complicated the decision making process is concerning location and kind of production process
L'afflux de population dans la région de la Saltriver tandis que le développement de l'agriculture irriguée et de l'élevage spéculatif entraînait des prélèvements excessifs dans les nappes phréatiques a provoqué des conflits entre besoins urbains
et besoins ruraux en eau. L'A. en retrace la genèse, évalue les besoins pour l'agriculture et pour les villes en expansion (Phoenix en particulier), et décrit, avec l'action de l'officiel Central Arizona Project, les problèmes politiques que soulèvent
Amerindians ; Arizona ; Conflict ; Dam ; Irrigation ; Legislation ; Planning project ; Resource management ; River basin ; United States of America ; Water resources
En prenant l'exmple de l'Arizona et de l'Active Management Area de Phoenix, l'A. présente deux accords indiens sur le régime juridique des cours d'eau, celui des Indiens Pima-Aricopa de la SaltRiver et celui des Indiens Apache-Mohave du Fort Mc
Dowell. Il présente aussi les revendications juridiques sur les eaux de la Gila River par les Indiens dans le contexte des tensions entre les législations fédérales et locales. Le rôle historique malencontreux du gouvernement fédéral en tant
qu'administrateur des biens des Indiens a été critiqué. De tels accords sont des jalons vers l'exploitation des bassins fluviaux à moyen et long terme (comme celui de la Gila River dans le bassin de la Colorado River). A côté de la sécurité juridique, une sécurité
Information on the GIGI and ARGUS projects, the American Geographical society Around the World Program, Geolinks and the Key to the National Geography Standards. These source materials are meant to benefit classroom teachers of geography in the USA
Sedimentatieverschijnselen nabij een rivier stuw op de Markrivier Sedimentation phenomena near a river dam on the river Mark
To alter the natural river behaviour, many regulation projects have been carried out on various river systems. However, until now very few studies on the reactions of the rivers to the imposed regulating systems have been undertaken. - (Author).
Silenced rivers: the ecology and politics of large dams
Dam ; Environment ; Hydraulic works ; Impact study ; Political geography ; Project
Devastating critique of the environmental effects and human consequences of dams around the world. Considers the powerful political and economic interests behing large dam projects, many proposed and built for large international aid projects
Researches on environmental changes of the Yellow River Basin and laws of water and sediment transportation
In this project, some basic researches on the prospect of reducing sediments delivered into the Yellow River after 2000, the ways to prolonging the lifetime of the current lower Yellow River channel, the program of comprehensive management
and development of the drainage basin, etc., were carried out. Moreover, this project has outstanding features comparing with other researches on the large rivers in China.
Morphogenetic classification of river valleys developing in formerly glaciated areas for the needs of mathematical and physical modelling in hydrotechnical projects
Applied hydrology ; Catchment area;Watershed ; Classification ; Fluvial erosion ; Fluvial processes ; Human impact ; Hydrological regime ; Meander ; Model ; Poland ; River bed
This paper deals with proposals of natural models of river valley evolution useful for physical and mathematical modelling in hydrotechnical projects. Such models are known from investigations of numerous valley reaches of the Wisla (Vistula) River
and the Odra (Oder) River drainage basins. The proposed classification of model types forms an open system that can be supplemented with new types and subtypes, characteristic for other regions of the world.
This paper presents a framework and blueprint for geomorphic studies of large rivers developed in the course of basic, strategic and project-related investigations of a number of large rivers. The framework demonstrates the need to begin geomorphic
studies early in the pre-feasibility stage of a riverproject and carry them through to implementation and post-project appraisal. The blueprint breaks down the multi-layered and multi-scaled complexity of a comprehensive geomorphic study into a number
Salt karst and tectonics : sinkholes development along tension cracks between parallel strike-slip faults, Dead Sea, Jordan
Arid area ; Coastal environment ; Doline ; Fracture ; Geological structure ; Jordan ; Karst ; Karstification ; Lineament ; Red Sea ; Salt ; Spatial distribution ; Strike-slip fault ; Tectonics
information of subsurface dicontinuities interpreted as hidden fractures. Such results could support the work of decision-makers and engineers in the projected development of the area.
The character of the fine fractions of the bottom sediments of the Bohemian part of the Labe (Elbe) river
Part of the project to study the distribution and transport of pollutants in the Bohemian part of the Labe river involved the determination of the mineral association in recent sediments, the grain-size distribution and expression of the effect
of the river catchment geological setting, of its relief and of weathering on the composition of the particulate bed material. As it is generally accepted that the smaller grain-size of the sediment fraction binds the greatest amount of trace toxic elements
Since 1922 a recurrent proposal to build an intervalley canal system with water from the Santa River has been part of the political and economic fabric of the North Coast of Peru. The idea is renewed, especially when droughts occur. - (DWG)
Bohemia ; Czech Republic ; National park ; Project ; Regional development
The geographical project of a National Park includes three parts: mesas and kuestas in the West, sandstone rock cities in the East, Elbe River cayon in the centre. Cultural landscape and balanced regional development are in the focus of the new
Soustava vodohospodarskych uprav na jizni Morave. (A project of water management modification in the South-Moravia region)
The region of the South-Moravia at the confluence of Dyje and Morava river belongs to the most productive agricultural areas of Czechoslovakia. The article presents the conception, results of research and characteristics of water management