Incised River Channels: Processes, Forms, Engineering, and Management

ISBN-13: 9780471984467 / Angielski / Twarda / 1999 / 452 str.

Darby, Stephen

Opis

Problems associated with river channel incision include undermining of structures and loss of habitat in degraded channels, downstream sedimentation, degradation of riparian and floodplain vegetation, and severe channel bank erosion and widening.

Spis treści

Nature and Significance of Incised River Channels.

Causes and Controls of Channel Incision.

PROCESSES, FORMS AND INCISED CHANNEL EVOLUTION.

Sediment Transport Processes and Channel Incision: Mised Size Sediment Transport, Degradation and Armouring.

Oscillartory Tesponses versus Progressive Degradation of Incised Channels in Southeastern Australia.

Bank Processes and Channel Evolution in the Incised Rivers of North–Central Mississippi.

Streambank Mechanics and the Role of Bank and Near Bank Processes in Incised Channel Evolution.

Evolution of Arroyos: Incised Channels of the Southwestern United States.

Incised Bedrock Channels.

Incised Channels and Riparian Vegetation, Form and Process.

Erosional Processes at an Abrupt Channel Head: Implications for Channel Entrenchment and Discontinuous Gully Formation.

Simulation of Gully Erosion and Bistable Landforms.

ENGINEERING AND MANAGEMENT OF INCISED RIVERS.

Environmental Effects of Channel Incision and Remedial Strategies.

Stream Channel Restoration and Erosion Control for Incised Channels in Alpine Environments.

Geomorphological Approaches to Incised Stream Channel Restoration in the United States and Europe.

Blurb

Incised river channels are ubiquitous features of landscapes disturbed by environmental change. Problems associated with channel incision include undermining of structures, downstream sedimentation, severe bank erosion and widening, and degradation of aquatic and riparian habitats. In Incised River Channels, research from the disciplines of geomorphology, hydraulics, sediment transport, ecology, environmental management and river engineering is brought together to develop a detailed, integrated treatment, over a range of spatial and temporal scales, of the dynamic behaviour of unstable incised rivers. The book emphasizes the need for improved understanding of the processes and mechanisms of channel adjustment and evolution to underpin sustainable river management and engineering. It contains important original contributions from an international authorship. Contributors include university and government scientists and researchers, as well as practitioners from regulatory and consultancy organizations. Divided into three thematic sections, Incised River Channels covers the nature and significance of incised channels, processes, and mitigation and management. Fundamental principles are illustrated using case studies from a wide range of physiographic environments, providing a wide geographical coverage. This volume will be of interest to academics and advanced level students who are studying fluvial geomorphology and/or river engineering. It will also be of appeal to all those interested in river adjustment and management.