A Systems Approach for River and River Basin Restoration

A Systems Approach for River and River Basin Restoration

Author: Theodore Endreny

Publisher: MDPI

ISBN: 9783039436316

Category: Technology & Engineering

Page: 204

View: 992

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Communities increasingly find that the water quality, water levels, or some other resource indicator in their river basins do not meet their expectations. This discrepancy between the desired and actual state of the resource leads to efforts in river basin restoration. River basins are complex systems, and too often, restoration efforts are ineffective due to a lack of understanding of the purpose of the system, defined by the system structure and function. The river basin structure includes stocks (e.g., water level or quality), inflows (e.g., precipitation or fertilization), outflows (e.g., evaporation or runoff), and positive and negative feedback loops with delays in responsiveness, all of which function to change or stabilize the state of the system (e.g., the stock of interest, such as water level or quality). External drivers on this structure, together with goals and rules, contribute to how a river basin functions. This book reviews several new research projects to identify and rank the twelve most effective leverage points to address discrepancies between the desired and actual state of the river basin system. This book demonstrates that river basin restoration is most likely to succeed when we change paradigms rather than try to change the system elements, as the paradigm will establish the system goals, structure, rules, delays, and parameters.

River Basin Restoration and Management

River Basin Restoration and Management

Author: A. Ostfeld

Publisher: IWA Publishing

ISBN: 9781843395102

Category: Science

Page: 101

View: 115

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River Basin Restoration and Management is the result of two workshops that took place at the 4th IWA World Water Congress: The Restoration of Degraded River Basins and River Basin Management Using Machine Learning. The Restoration of Degraded River Basins set out to share experience in the institutional, policy, and public participation elements of restoration programmes, the 'soft' issues surrounding restoration of a degraded river basin and the development of the river basin plan. The resulting papers include a number of case studies from a variety of river basins in Israel, South Africa, United Kingdom, Australia and Central Europe. The River Basin Management Using Machine Learning workshop highlighted and compared the two different approaches to watershed management: the physically based modelling approach relying on the system physics versus the data driven modelling approach based on exploring the system 'data behaviour'. The workshop was motivated by the recent rapid advance in information processing systems. These have pushed the hydrological research community to explore the possibilities of using intelligent systems aimed at automatically-evolving models of natural phenomena. This is the discipline of machine learning (ML), the study of computer algorithms that improve automatically through experience.

Geomorphic Approaches to Integrated Floodplain Management of Lowland Fluvial Systems in North America and Europe

Geomorphic Approaches to Integrated Floodplain Management of Lowland Fluvial Systems in North America and Europe

Author: Paul F. Hudson

Publisher: Springer

ISBN: 9781493923809

Category: Technology & Engineering

Page: 356

View: 99

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This volume provides a comprehensive perspective on geomorphic approaches to management of lowland alluvial rivers in North America and Europe. Many lowland rivers have been heavily managed for flood control and navigation for decades or centuries, resulting in engineered channels and embanked floodplains with substantially altered sediment loads and geomorphic processes. Over the past decade, floodplain management of many lowland rivers has taken on new importance because of concerns about the potential for global environmental change to alter floodplain processes, necessitating revised management strategies that minimize flood risk while enhancing environmental attributes of floodplains influenced by local embankments and upstream dams. Recognition of the failure of old perspectives on river management and the need to enhance environmental sustainability has stimulated a new approach to river management. The manner that river restoration and integrated management are implemented, however, requires a case study approach that takes into account the impact of historic human impacts to the system, especially engineering. The river basins examined in this volume provide a representative coverage of the drainage of North America and Europe, taking into account a range of climatic and physiographic provinces. They include the 1) Sacramento (California, USA), 2) San Joaquin (California), 3) Missouri (Missouri, USA), 4) Red (Manitoba, Canada and Minnesota, USA), 5) Mississippi (Louisiana, USA), 6) Kissimmee (Florida, USA), 7) Ebro (Spain), 8) Rhone (France), 9) Rhine (Netherlands), 10) Danube (Romania), and 11) Volga (Russian Federation) Rivers. The case studies covered in these chapters span a range of fluvial modes of adjustment, including sediment, channel, hydrologic regime, floodplains, as well as ecosystem and environmental associations.

Restoration of Degraded Rivers: Challenges, Issues and Experiences

Restoration of Degraded Rivers: Challenges, Issues and Experiences

Author: Daniel Loucks

Publisher: Springer Science & Business Media

ISBN: 0792349423

Category: Science

Page: 500

View: 814

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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.

Report on Yangtze River Rehabilitation and Protection 2019

Report on Yangtze River Rehabilitation and Protection 2019

Author: CWRC

Publisher: Springer Nature

ISBN: 9789811649271

Category: Science

Page: 183

View: 703

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This book summarizes the achievements and experience of the Yangtze River rehabilitation and protection, analyzes the new situation and requirements of the Yangtze River rehabilitation and protection, and discusses the main issues and their solution alternatives for the Yangtze River rehabilitation and protection efforts. The Yangtze River, respected as the mother river of the Chinese nation, contributes immensely toward the socioeconomic development of China and braces up the national strategies such as the development of the Yangtze River Economic Belt and the integrated development of the Yangtze River Delta, etc. Whether the Yangtze River is under good stewardship has implications on not only the wellbeing of more than 400 million inhabitants in the basin, but also in broader sense the overall sustainability of socioeconomic development of the whole country. This book which has two parts, provides a multidirectional analysis of Yangtze River rehabilitation and protection. The first part explores the stages, achievements, and the future of the Yangtze rehabilitation and protection. Major issues existing in Yangtze River Basin rehabilitation and protection are discussed in the second part. Many pictures, charts, and diagrams are involved providing an understanding of the situation of Yangtze River Basin.

Rehabilitating Damaged Ecosystems

Rehabilitating Damaged Ecosystems

Author: Jr. Cairns

Publisher: CRC Press

ISBN: 9781351419239

Category: Technology & Engineering

Page: 470

View: 171

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Built on a strong foundation in restoration ecology, this unique handbook provides practitioners, academics, and managers with vital tools needed to plan for ecosystem conservation, to restore degraded ecosystems, to make cost-effective restoration decisions, and to understand important legal issues. Rehabilitation of Damaged Ecosystems, Second Edition boasts three completely new chapters and five major chapter revisions. Coastal wetlands restoration, watershed rehabilitation and management, mined land reclamation, revegetation of disturbed ecosystems, and river and stream restoration are only a few of the critical topics explored in this timely reference handbook. This Second Edition provides valuable, reliable data as well as practical methods and techniques for the ongoing fight to protect natural resources and restore damaged ecosystems.

Genetic Conservation of Salmonid Fishes

Genetic Conservation of Salmonid Fishes

Author: Joseph G. Cloud

Publisher: Springer Science & Business Media

ISBN: 9781461528661

Category: Medical

Page: 314

View: 675

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As the human population increases and nations become more industrialized, the habitat and water quality required for the survival of fish continues to decline. In addition to these environmental factors, fish populations are directly or potentially affected by harvesting, enhancement programs and introgression with hatchery-propagated or transgenic fish. To our knowledge no other scientific meeting has been assembled to consider the breadth of the problem, to review the technology that is presently available for the preservation of the germ plasm of salmonid stocks and to identify the scientific advances that are required to overcome the problems. Because many salmonids have spawning grounds within the confines of a specific region or county but will spend a large portion of their life cycle within the territorial waters of other countries or in the open ocean, the preservation of unique genes or gene pools in these animals requires international cooperation. This scientific meeting has provided a forum in which to discuss the problems, evaluate the present methods or technology for addressing the problems and suggest new directions or innovations that need to be implemented. During this meeting we limited our discussion to salmonid fishes. However, the general conclusions about the factors that affect the population dynamics of fish stocks and the technical aspects concerning the preservation of germ plasm will be applicable to other fish species.

Living Rivers: Trends and Challenges in Science and Management

Living Rivers: Trends and Challenges in Science and Management

Author: R.S.E.W. Leuven

Publisher: Springer Science & Business Media

ISBN: 9781402053672

Category: Science

Page: 371

View: 230

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This book demonstrates an integrated perspective of trends and challenges in sustainable river science and management, as presented by experts in the fields that form its foundations - ecology, economy and sociology. Their contributions integrate current knowledge of the structure, functioning and management of ‘living rivers’. Also included are data and experiences concerning the rivers Allier, Meuse, Rhine, Sava and Tagliamento in Europe and the Illinois River in the USA.