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Author: Robyn Jean Suddeth
Publisher:
ISBN: 9781321364064
Category :
Languages : en
Pages :
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Book Description
Floodplains in California and elsewhere are extremely productive habitats with high levels of biodiversity, yet they are often permanently disconnected from rivers by urban or agricultural development. This poses a potential threat to the many native fish, bird and other species that evolved to take advantage of seasonal floodplain inundation. The traditional restoration approach to this problem would recreate historical floodplain in some places by restoring natural hydrologic and successional processes. However levees, dams, and development prevent this approach in much of California. Reconciliation ecology recognizes this limitation, and encourages instead the re-engineering of human dominated landscapes so that native species and human uses can sustainably co-exist. Flood control bypasses are a particularly promising location for reconciling historical fish and bird uses of floodplain habitats with human uses. However the reconciliation approach requires nuanced management of a complex multi-purpose system. This study proposes the use of formal multi-objective optimization to help planners choose management options that best improve habitat quality for fish and birds with minimal costs to farmers or wetland managers. Models like the one developed here can integrate large amounts of data and knowledge, and explicitly account for the relationships and tradeoffs among different objectives. This is especially useful in reconciliation planning where many uses and variables interact on a landscape, and deliberate re-engineering requires considering many decisions simultaneously. Results suggest several land use changes and inundation management strategies on the Yolo Bypass that can significantly improve seasonal bird and fish habitat at very little cost to farmers and other human uses. The model applications herein demonstrate the usefulness of multi-objective optimization in reconciling managed floodplains, and provide a framework for integrating new knowledge and testing varying assumptions to improve management over time.
Author: Robyn Jean Suddeth
Publisher:
ISBN: 9781321364064
Category :
Languages : en
Pages :
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Book Description
Floodplains in California and elsewhere are extremely productive habitats with high levels of biodiversity, yet they are often permanently disconnected from rivers by urban or agricultural development. This poses a potential threat to the many native fish, bird and other species that evolved to take advantage of seasonal floodplain inundation. The traditional restoration approach to this problem would recreate historical floodplain in some places by restoring natural hydrologic and successional processes. However levees, dams, and development prevent this approach in much of California. Reconciliation ecology recognizes this limitation, and encourages instead the re-engineering of human dominated landscapes so that native species and human uses can sustainably co-exist. Flood control bypasses are a particularly promising location for reconciling historical fish and bird uses of floodplain habitats with human uses. However the reconciliation approach requires nuanced management of a complex multi-purpose system. This study proposes the use of formal multi-objective optimization to help planners choose management options that best improve habitat quality for fish and birds with minimal costs to farmers or wetland managers. Models like the one developed here can integrate large amounts of data and knowledge, and explicitly account for the relationships and tradeoffs among different objectives. This is especially useful in reconciliation planning where many uses and variables interact on a landscape, and deliberate re-engineering requires considering many decisions simultaneously. Results suggest several land use changes and inundation management strategies on the Yolo Bypass that can significantly improve seasonal bird and fish habitat at very little cost to farmers and other human uses. The model applications herein demonstrate the usefulness of multi-objective optimization in reconciling managed floodplains, and provide a framework for integrating new knowledge and testing varying assumptions to improve management over time.
Author: Jeffrey J. Opperman
Publisher: Univ of California Press
ISBN: 0520293061
Category : Business & Economics
Languages : en
Pages : 268
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Book Description
Introduction to temperate floodplains -- Hydrology -- Floodplain and geomorphology -- Biogeochemistry -- Ecology: introduction -- Floodplain forests -- Primary and secondary production -- Fish and other vertebrates -- Ecosystem services and floodplain reconciliation -- Floodplains as green infrastructure -- Case studies of floodplain management and reconciliation -- Central Valley floodplains: introduction and history -- Central Valley floodplains today -- Reconciling Central Valley floodplains -- Conclusions: managing temperate floodplains for multiple benefits
Author: Futoshi Nakamura
Publisher: Springer Nature
ISBN: 9811667918
Category : Bioclimatology
Languages : en
Pages : 494
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Book Description
This open access book introduces the function, implementation and governance of green infrastructure in Japan and other countries where lands are geologically fragile and climatologically susceptible to climate change. It proposes green infrastructure as an adaptation strategy for climate change and biodiversity conservation. In the face of climate change, dams, levees and floodways built as disaster prevention facilities do not sufficiently function against extraordinary events such as mega-floods and tsunami disasters. To prevent those disasters and loss of biodiversity in various ecosystems, we should shift from conventional hard measures to more adaptive strategies using various functions that natural and semi-natural ecosystems provide. Green infrastructure is an interconnected network of waterways, wetlands, woodlands, wildlife habitats and other natural areas that support native species, maintain natural ecological processes, sustain air and water resources and contribute to the health and quality of life for communities and people. Green infrastructure has mainly been discussed from adaptation strategy perspectives in cities and urban areas. However, to protect cities, which are generally situated at downstream lower elevations, we explore the preservation and restoration of forests at headwater basins and wetlands along rivers from a catchment perspective. In addition, the quantitative examination of flood risk, biodiversity, and social-economic benefits described in this book brings new perspectives to the discussion. The aim of this book is to accelerate the transformative changes from gray-based adaptation strategies to green- or hybrid-based strategies to adapt to climate change. The book provides essential information on the structure, function, and maintenance of green infrastructure for scientists, university students, government officers, and practitioners.
Author: Lindsay Courtney Worley
Publisher:
ISBN:
Category : Black Creek Watershed (Vt.)
Languages : en
Pages : 0
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Book Description
Flooding events around the world cost billions (USD) in damages each year. For decades, engineers have combated flood related damages by implementing flood mitigation controls such as channelization, levees or berms, and armoring. Recent advances in the study of river dynamics, however, have challenged the efficacy of these traditional flood mitigation techniques and pose that these structures are disconnecting channels from their floodplains, increasing flow rates, and contributing to more erosion. The effects of climate change combined with future predictions of increased storm frequency and intensity make it necessary to revise flood hazard mitigation strategies. A more nature-based alternative to building structural defenses, is to reconnect disconnected floodplains and conserve those floodplains that are already well-connected. A well-connected floodplain allows floodwaters to overtop the channel banks more frequently to dissipate flood energies and slow stream flow thereby decreasing downstream damages. Additional benefits include provision of habitat and improved water quality. When choosing techniques and locations for floodplain conservation and reconnection, planners have a multitude of concerns to consider (e.g., water quality, flood resiliency, habitat improvement, project effectiveness, existing land use, budget, and lost opportunity costs). Considering all stakeholder objectives within budgetary constraints is a difficult and complex process, made even more challenging because these objectives often compete. Consequently, there is a need for computational tools that can optimize restoration locations and conservation strategies to help planners synthesize, justify, and visualize design choices. To help alleviate the uncertainty in planning for improvement projects, multi-objective optimization was performed to optimize both the locations and techniques for conservation and restoration while considering the tradeoffs between multiple stakeholder objectives. Three case studies in Vermont are used for illustration. In the first, a tool is developed that semi-automates the extraction and analysis of five evaluation parameters from a 2D hydraulic model (2D Hydrologic Engineering Center's River Analysis System, 2D HEC-RAS) to compare hydraulic effectiveness of four floodplain reconnection scenarios on the Black Creek. This same tool is leveraged in the second case study along a section of the Mad River to develop an n-dimensional objective function to rank floodplain reconnection techniques while considering multiple stakeholder objectives (i.e., enhanced flood resiliency, improved water quality, and minimized socioeconomic impacts). The third case study in the Winooski River watershed, applies an evolutionary algorithm to a geospatial database of river network connectivity data on the basin scale to provide planners with a suite of optimal conservation locations that balance the tradeoffs between stakeholder goals including flood resiliency, water quality, and cost effectiveness. The tools developed aided in the advancement of a more holistic approach to floodplain conservation and reconnection design creating a more efficient method to narrow in on optimal sites at the watershed and reach scales considering multiple stakeholder objectives/concerns.
Author: Mendoza, Guillermo
Publisher: UNESCO Publishing
ISBN: 9231002872
Category : Climatic changes
Languages : en
Pages : 157
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Book Description
Author: Futoshi Nakamura
Publisher:
ISBN: 9788981166793
Category : Climatic changes
Languages : en
Pages : 0
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Book Description
This open access book introduces the function, implementation and governance of green infrastructure in Japan and other countries where lands are geologically fragile and climatologically susceptible to climate change. It proposes green infrastructure as an adaptation strategy for climate change and biodiversity conservation. In the face of climate change, dams, levees and floodways built as disaster prevention facilities do not sufficiently function against extraordinary events such as mega-floods and tsunami disasters. To prevent those disasters and loss of biodiversity in various ecosystems, we should shift from conventional hard measures to more adaptive strategies using various functions that natural and semi-natural ecosystems provide. Green infrastructure is an interconnected network of waterways, wetlands, woodlands, wildlife habitats and other natural areas that support native species, maintain natural ecological processes, sustain air and water resources and contribute to the health and quality of life for communities and people. Green infrastructure has mainly been discussed from adaptation strategy perspectives in cities and urban areas. However, to protect cities, which are generally situated at downstream lower elevations, we explore the preservation and restoration of forests at headwater basins and wetlands along rivers from a catchment perspective. In addition, the quantitative examination of flood risk, biodiversity, and social-economic benefits described in this book brings new perspectives to the discussion. The aim of this book is to accelerate the transformative changes from gray-based adaptation strategies to green- or hybrid-based strategies to adapt to climate change. The book provides essential information on the structure, function, and maintenance of green infrastructure for scientists, university students, government officers, and practitioners.
Author: Andrew Simon
Publisher: John Wiley & Sons
ISBN: 1118671783
Category : Science
Languages : en
Pages : 939
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Book Description
Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 194. Stream Restoration in Dynamic Fluvial Systems: Scientific Approaches, Analyses, and Tools brings together leading contributors in stream restoration science to provide comprehensive consideration of process-based approaches, tools, and applications of techniques useful for the implementation of sustainable restoration strategies. Stream restoration is a catchall term for modifications to streams and adjacent riparian zones undertaken to improve geomorphic and/or ecologic function, structure, and integrity of river corridors, and it has become a multibillion dollar industry. A vigorous debate currently exists in research and professional communities regarding the approaches, applications, and tools most effective in designing, implementing, and assessing stream restoration strategies given a multitude of goals, objectives, stakeholders, and boundary conditions. More importantly, stream restoration as a research-oriented academic discipline is, at present, lagging stream restoration as a rapidly evolving, practitioner-centric endeavor. The volume addresses these main areas: concepts in stream restoration, river mechanics and the use of hydraulic structures, modeling in restoration design, ecology, ecologic indices, and habitat, geomorphic approaches to stream and watershed management, and sediment considerations in stream restoration. Stream Restoration in Dynamic Fluvial Systems will appeal to scholars, professionals, and government agency and institute researchers involved in examining river flow processes, river channel changes and improvements, watershed processes, and landscape systematics.
Author: American Society of Landscape Architects
Publisher:
ISBN:
Category : Landscape architecture
Languages : en
Pages : 382
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Book Description
Author: Ellen Hanak
Publisher: Public Policy Instit. of CA
ISBN: 1582131414
Category : Business & Economics
Languages : en
Pages : 500
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Book Description
Author: Speed, Robert
Publisher: UNESCO Publishing
ISBN: 9231001655
Category :
Languages : en
Pages : 204
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Book Description
