Restoration of Degraded Rivers Challenges Issues and Experiences

Author: Daniel Loucks
Publisher: Springer Science & Business Media
ISBN: 9401728941
Format: PDF, Mobi
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In the continued quest for increased economic benefits from our water resources, numerous structures and operating policies for controlling the river flow have been built and implemented. These structures and associated operating policies can facilitate navigation; they can provide greater quantities of reliable water supplies to meet agricultural, industrial and municipal water demands; they can generate hydroelectric power and energy; and they can provide increased flood protection, recreation, and other benefits. Over the past half-century we have converted many of our rivers into engineered waterways. These straightened, often periodically dredged, engineered rivers are complete with dikes, reservoirs, weirs, and diversion canals. All this engineering has enhanced economic development. However, as rivers and their floodplains become stressed from the excessive use and misuse of their resources, their contribution to economic development can be threatened. Evidence of economic and ecological degradation, especially in relatively large river systems such as the Danube, the Mississippi, the Rhine, and the Volga, has increased our appreciation of beneficial roles natural aquatic and terrestrial ecosystems play in water quantity and quality management. We have recognized the need to pay more attention to letting nature help us regulate water quantity and quality rather than working against nature and its variabilities and uncertainties. Today there are efforts underway in many developed river basins to 'de engineer' or return these straightened and controlled rivers to a more natural state.

Restoration of Degraded Rivers Challenges Issues and Experiences

Author: Daniel Loucks
Publisher: Springer Science & Business Media
ISBN: 9780792349426
Format: PDF, Docs
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In the continued quest for increased economic benefits from our water resources, numerous structures and operating policies for controlling the river flow have been built and implemented. These structures and associated operating policies can facilitate navigation; they can provide greater quantities of reliable water supplies to meet agricultural, industrial and municipal water demands; they can generate hydroelectric power and energy; and they can provide increased flood protection, recreation, and other benefits. Over the past half-century we have converted many of our rivers into engineered waterways. These straightened, often periodically dredged, engineered rivers are complete with dikes, reservoirs, weirs, and diversion canals. All this engineering has enhanced economic development. However, as rivers and their floodplains become stressed from the excessive use and misuse of their resources, their contribution to economic development can be threatened. Evidence of economic and ecological degradation, especially in relatively large river systems such as the Danube, the Mississippi, the Rhine, and the Volga, has increased our appreciation of beneficial roles natural aquatic and terrestrial ecosystems play in water quantity and quality management. We have recognized the need to pay more attention to letting nature help us regulate water quantity and quality rather than working against nature and its variabilities and uncertainties. Today there are efforts underway in many developed river basins to 'de engineer' or return these straightened and controlled rivers to a more natural state.

Remediation and Management of Degraded River Basins

Author: Vladimir Novotny
Publisher: Springer Science & Business Media
ISBN: 3642577520
Format: PDF, ePub, Docs
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Leading experts present methodologies for basinwide approaches to water quality restoration. In 15 chapters the identification of pollution sources, definition of standards and their attainability, surface and groundwater modeling, remediation of contaminated soils and sediments, development and implementation of low cost treatment technologies, basinwide water quality management and remediation, and economic and institutional issues are covered. The book focuses on the situation in central and eastern European countries; however, the topics and solutions are of general interest and have worldwide applications.

Proceedings

Author: International Association of Theoretical and Applied Limnology
Publisher:
ISBN: 9783510540457
Format: PDF, Kindle
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Water as a limiting resource

Author: William David Williams
Publisher:
ISBN:
Format: PDF
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This book is the first part of the Proceedings of the 26th congress of SIL (Societas Internationalis Limnologiae Theoreticae et applicatae) held in Sao Paolo, Brazil in 1994. It contains the papers of all plenary lectures given at that congress. The meeting had the theme ''Water as a limiting resource: Conservation and Management''. Because of the worldwide impact of the issues discussed in the plenary lectures, SIL thought it important to make this unique collection of papers available to the wide audience outside of its organization.

The Utilization of Bioremediation to Reduce Soil Contamination Problems and Solutions

Author: Václav Sasek
Publisher: Springer Science & Business Media
ISBN: 9401001316
Format: PDF, Mobi
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Traditional reliance on chemical analysis to understand the direction and extent of treatment in a bioremediation process has been found to be inadequate. Whereas the goal of bioremediation is toxicity reduction, few direct, reliable measures of this process are as yet available. Another area of intense discussion is the assessment of market forces contributing to the acceptability of bioremediation. Finally, another important component is a series of lectures and lively exchanges devoted to practical applications of different bioremediation technologies. The range of subjects covers a wide spectrum, encompassing emerging technologies as well as actual, full-scale operations. Examples discussed include landfarming, biopiling, composting, phytoremediation and mycoremediation. Each technology is explored for its utility and capability to provide desired treatment goals. Advantages and limitations of each technology are discussed. The concept of natural attenuation is also critically evaluated since in some cases where time to remediation is not a significant factor, it may be an alternative to active bioremediation operations.

Environmental Reconstruction in Headwater Areas

Author: Martin J. Haigh
Publisher: Springer Science & Business Media
ISBN: 9780792362951
Format: PDF, ePub
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Proceedings of the NATO Advanced Research Workshop on Environmental Reconstruction in Headwater Areas in Liberec and Prague, Czech Republic, November 21-26, 1997