Download or read book Intermittent Rivers and Ephemeral Streams written by Thibault Datry and published by Academic Press. This book was released on 2017-07-11 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intermittent Rivers and Ephemeral Streams: Ecology and Management takes an internationally broad approach, seeking to compare and contrast findings across multiple continents, climates, flow regimes, and land uses to provide a complete and integrated perspective on the ecology of these ecosystems. Coupled with this, users will find a discussion of management approaches applicable in different regions that are illustrated with relevant case studies. In a readable and technically accurate style, the book utilizes logically framed chapters authored by experts in the field, allowing managers and policymakers to readily grasp ecological concepts and their application to specific situations. - Provides up-to-date reviews of research findings and management strategies using international examples - Explores themes and parallels across diverse sub-disciplines in ecology and water resource management utilizing a multidisciplinary and integrative approach - Reveals the relevance of this scientific understanding to managers and policymakers
Download or read book Flow regime Management written by Matthew James Burns and published by . This book was released on 2013 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: Healthy streams are important. They support a range of biota and ecosystem services. Yet, many urban streams are degraded; primarily by stormwater runoff, delivered through conventional stormwater drainage systems. Standard approaches to stormwater management for environmental protection do not address the ecologically important changes to hydrology caused by stormwater drainage. My thesis proposed and explored an alternative approach to stormwater management-flow-regime management-which emphasizes the protection or restoration of hydrologic (and water quality) processes at small scales with the aim of returning catchment-scale flow regimes towards their natural condition. Building on this concept, the thesis assessed the degree to which SIGNAL (an aquatic macroinvertebrate assemblage composition index) is predicted by hydrologic indicators and a landscape-scale indicator of stormwater runoff (attenuated imperviousness [AI]). SIGNAL was best predicted by AI, while a model that included hydrologic indicators characterising high- and low-flow hydrology was only marginally less plausible. It was postulated that AI integrates all aspects of hydrologic alteration and other stressors, such as reduced in-stream water quality. The analyses confirmed the importance of stormwater runoff conveyed by stormwater drainage systems as a primary source of degradation to receiving waters.The thesis developed and evaluated a framework for setting stormwater management objectives, covering three components: (i) the proportion of rain falling on impervious areas that should be lost (evapotranspired and/or harvested), (ii) the proportion that should be infiltrated, and the (iii) equivalent initial loss, which characterizes the probability of surface runoff from a rain-event, with the aim of restoring pre-development levels of runoff retention within the catchment. Numeric targets for each objective were calculated for Melbourne, Australia as a case study. At land-parcel (site) and streetscape scales, empirical data and modelling were used to investigate the hydrologic performance of stormwater management strategies (rainwater tanks and rain-gardens) against the proposed objectives. Twelve tanks at the land-parcel (site) scale were monitored. Of these, only three achieved an equivalent initial loss that approached the proposed target-a consequence of limited demand and small tank capacity. The work demonstrated the important synergy between the water supply substitution benefits of rainwater tanks and their stormwater retention performance. The performance of various design configurations of rainwater tanks and rain-gardens was then modeled. Configurations where tanks - connected to a large range of internal uses - overflowed to rain-gardens were often able to achieve all three hydrologic restoration targets. The hydrologic performance of a rain-garden at the streetscape scale was also monitored and found not to be ideal, producing frequently untreated overflows. The rain-garden performed poorly because its area was only ~1% of its upstream impervious catchment. Modelling a larger rain-garden and domestic rainwater tanks in the streetscape still resulted in a water balance dissimilar to pre-development conditions. The results confirmed the importance of finding a means of losing much of the excess volume generated by impervious areas.Restoring flow regimes at small scales is thus primarily limited by demand for stormwater. However, at the household scale the amount of harvestable impervious runoff is similar to the demands which could be provided by stormwater, meaning that with the right combination of uses, adequate volume reduction should be possible. Finding demands at the streetscape scale is more challenging, particularly given the lower water quality and limited space for storage. Modelling was also undertaken to examine if stormwater management strategies applied at small scales could return more natural catchment scale flow regimes. The scenarios which treated only allotment scale impervious roof areas generally performed poorly, with a strategy addressing all catchment imperviousness being shown to be required. My thesis has demonstrated both the potential and challenges of incorporating flow-regime management into the control of urban stormwater. Such an approach could readily be applied in new urban areas and would likely protect receiving waters. However, research to confirm this hypothesis is urgently needed. Flow regime management could also be applied to degraded urban streams, albeit with comparatively more challenges. These challenges are however, not insurmountable, and it is clearly important to persevere given the values provided by urban streams.
Download or read book Environmental Flows written by Angela Arthington and published by Univ of California Press. This book was released on 2012-10-15 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Flows describes the timing, quality, and quantity of water flows required to sustain freshwater and estuarine ecosystems and the human well-being and livelihoods that depend upon them. It answers crucial questions about the flow of water within and between different kinds of ecosystems. What happens when the flow or the availability of water is curtailed or diverted, either naturally or by human activity? How will climate change alter the availability of water and impact aquatic ecosystems? Methodological developments from the simplest hydrological formulas to large-scale frameworks that inform water management make this book a must-read for water managers and freshwater and estuarine ecologists contending with ever-changing conditions influencing the flow of water.
Download or read book Hydraulic Response of Flow Regime Management Practices and Their Impacts on Fisheries Habitat written by Patrick G. Deering and published by . This book was released on 2003 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water for the Environment written by Avril Horne and published by Academic Press. This book was released on 2017-08-16 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water for the Environment: From Policy and Science to Implementation and Management provides a holistic view of environmental water management, offering clear links across disciplines that allow water managers to face mounting challenges. The book highlights current challenges and potential solutions, helping define the future direction for environmental water management. In addition, it includes a significant review of current literature and state of knowledge, providing a one-stop resource for environmental water managers. - Presents a multidisciplinary approach that allows water managers to make connections across related disciplines, such as hydrology, ecology, law, and economics - Links science to practice for environmental flow researchers and those that implement and manage environmental water on a daily basis - Includes case studies to demonstrate key points and address implementation issues
Download or read book Handbook of Irrigation Hydrology and Management written by Saeid Eslamian and published by CRC Press. This book was released on 2023-05-31 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ever-increasing population growth has caused a proportional increased demand for water, and existing water sources are depleting day by day. Moreover, with the impact of climate change, the rates of rainfall in many regions have experienced a higher degree of variability. In many cities, government utilities have been struggling to maintain sufficient water for the residents and other users. The Handbook of Irrigation Hydrology and Management: Irrigation Methods examines and analyzes irrigated ecosystems in which water storage, applications, or drainage volumes are artificially controlled in the landscape and the spatial domain of processes varies from micrometers to tens of kilometers, while the temporal domain spans from seconds to centuries. The continuum science of irrigation hydrology includes the surface, subsurface (unsaturated and groundwater systems), atmospheric, and plant subsystems. Further, the book addresses the best practices for various types of irrigation methods including pressure, smart, surface, and subsurface, and presents solutions for water scarcity and soil salinity in irrigation. Features: Offers water-saving strategies to increase the judicious use of scarce water resources Presents strategies to maximize agricultural yield per unit of water used for different regions Compares irrigation methods to offset changing weather patterns and impacts of climate change
Download or read book River restoration a strategic approach to planning and management written by Speed, Robert and published by UNESCO Publishing. This book was released on 2016-09-19 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Riverine Ecosystem Management written by Stefan Schmutz and published by Springer. This book was released on 2018-05-08 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book surveys the frontier of scientific river research and provides examples to guide management towards a sustainable future of riverine ecosystems. Principal structures and functions of the biogeosphere of rivers are explained; key threats are identified, and effective solutions for restoration and mitigation are provided. Rivers are among the most threatened ecosystems of the world. They increasingly suffer from pollution, water abstraction, river channelisation and damming. Fundamental knowledge of ecosystem structure and function is necessary to understand how human acitivities interfere with natural processes and which interventions are feasible to rectify this. Modern water legislation strives for sustainable water resource management and protection of important habitats and species. However, decision makers would benefit from more profound understanding of ecosystem degradation processes and of innovative methodologies and tools for efficient mitigation and restoration. The book provides best-practice examples of sustainable river management from on-site studies, European-wide analyses and case studies from other parts of the world. This book will be of interest to researchers in the field of aquatic ecology, river system functioning, conservation and restoration, to postgraduate students, to institutions involved in water management, and to water related industries.
Download or read book Establishing the Environmental Flow Regime for the Middle Zambezi River written by Elenestina Mwelwa-Mutekenya and published by CRC Press. This book was released on 2021-07-28 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Middle Zambezi, host to a rich biodiversity, is located in the central part of the Zambezi River Basin which covers eight Southern African Countries. The area is located downstream of three hydropower schemes. In the last decades, the floodplain riparian tree, the Faidherbia albida, vital for the local wild life, has shown a worrying decrease in its regeneration rates. This thesis explores establishing the environmental flow regime for the Middle Zambezi reach in order to minimise the impact of the upstream hydropower schemes on the river environment, using the Faidherbia albida tree as a biological indicator. The research identified that the current dam operations have completely altered the natural hydrological rhythm from pre-Kariba dam dry season flows of 100-200 m3/s increasing to 1,000-1,500 m3/s. The sudden closure of the dam floodgates can be linked to the observed river channel-widening phenomenon. In addition, the Faidherbia albida tree now experiences longer flood residence over the floodplain, making it inaccessible to animals to allow for regeneration. In order to save the F. albida tree, a two-pronged environmental flow regime is proposed of releasing a moderate flood of 5,800 m3/s once in 5 years, for 5 to 6 weeks in the months of February to March, and phasing the spillway gates closure over a period of 3 to 4 weeks to keep the floodplain wet enough until the months of May and June. Phasing of the spillway gate closure would also mitigate the excessive bank erosion.
Download or read book Riparian Ecosystems and Their Management written by and published by . This book was released on 1985 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Structure Function and Management Implications of Fluvial Sedimentary Systems written by Fiona J. Dyer and published by . This book was released on 2002 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Streamflow and Recreation written by Bo Shelby and published by . This book was released on 1992 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Historical Environmental Variation in Conservation and Natural Resource Management written by John A. Wiens and published by John Wiley & Sons. This book was released on 2012-07-09 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: In North America, concepts of Historical Range of Variability are being employed in land-management planning for properties of private organizations and multiple government agencies. The National Park Service, U.S. Fish & Wildlife Service, Bureau of Land Management, U.S. Forest Service, and The Nature Conservancy all include elements of historical ecology in their planning processes. Similar approaches are part of land management and conservation in Europe and Australia. Each of these user groups must struggle with the added complication of rapid climate change, rapid land-use change, and technical issues in order to employ historical ecology effectively. Historical Environmental Variation in Conservation and Natural Resource Management explores the utility of historical ecology in a management and conservation context and the development of concepts related to understanding future ranges of variability. It provides guidance and insights to all those entrusted with managing and conserving natural resources: land-use planners, ecologists, fire scientists, natural resource policy makers, conservation biologists, refuge and preserve managers, and field practitioners. The book will be particularly timely as science-based management is once again emphasized in United States federal land management and as an understanding of the potential effects of climate change becomes more widespread among resource managers. Additional resources for this book can be found at: www.wiley.com/go/wiens/historicalenvironmentalvariation.
Download or read book Toxic Cyanobacteria in Water written by Ingrid Chorus and published by CRC Press. This book was released on 2021-03-08 with total page 701 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cyanobacterial toxins are among the hazardous substances most widely found in water. They occur naturally, but concentrations hazardous to human health are usually due to human activity. Therefore, to protect human health, managing lakes, reservoirs and rivers to prevent cyanobacterial blooms is critical. This second edition of Toxic Cyanobacteria in Water presents the current state of knowledge on the occurrence of cyanobacteria and cyanotoxins as well as their impacts on health through water-related exposure pathways, chiefly drinking-water and recreational activity. It provides scientific and technical background information to support hazard identification, assessment and prioritisation of the risks posed by cyanotoxins, and it outlines approaches for their management at each step of the water-use system. It sets out key practical considerations for developing management strategies, implementing efficient measures and designing monitoring programmes. This enables stakeholders to evaluate whether there is a health risk from toxic cyanobacteria and to mitigate it with appropriate measures. This book is intended for those working on toxic cyanobacteria with a specific focus on public health protection. It intends to empower professionals from different disciplines to communicate and cooperate for sustainable management of toxic cyanobacteria, including public health workers, ecologists, academics, and catchment and waterbody managers. Ingrid Chorus headed the department for Drinking-Water and Swimming-Pool Hygiene at the German Environment Agency. Martin Welker is a limnologist and microbiologist, currently with bioMérieux in Lyon, France.
Download or read book Aquatic Habitats in Sustainable Urban Water Management written by Iwona Wagner and published by CRC Press. This book was released on 2014-04-21 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aquatic habitats supply a wide range of vital ecosystem benefits to cities and their inhabitants. The unsustainable use of aquatic habitats, including inadequate urban water management itself, however, tends to alter and reduce their biodiversity and therewith diminish their ability to provide clean water, protect us from waterborne diseases and po
Download or read book Management of Natural Resources Sustainable Development and Ecological Hazards IV written by C.A. Brebbia and published by WIT Press. This book was released on 2015-09-21 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains papers presented at the fourth in a series of trans-disciplinary conferences on Management of Natural Resources, Sustainable Development, and Ecological Hazards, first held in 2006. Papers presented at the conference suggest solutions to move our planet to a more sustainable modus operandi, and avoid the oft-projected "point of no return." The papers are based on economic, social, political, and environmental sciences and examine risk, lessons learned from nature, and new technologies. They present planning and development solutions that may address air, water, energy, soil, and/or ecology.
Download or read book Ecohydraulics written by Ian Maddock and published by John Wiley & Sons. This book was released on 2013-07-01 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecohydraulics: An Integrated Approachprovides a research level text which highlights recent developments of this emerging and expanding field. With a focus on interdisciplinary research the text examines:- the evolution and scope of ecohydraulics interactions between hydraulics, hydrology, fluvial geomorphology and aquatic ecology the application of habitat modelling in ecohydraulic studies state of the art methodological developments and approaches detailed case studies including fish passage design and the management of environmental flow regimes research needs and the future of ecohydraulics research The contributions offer broad geographic coverage to encapsulate the wide range of approaches, case studies and methods used to conduct ecohydraulics research. The book considers a range of spatial and temporal scales of relevance and aquatic organisms ranging from algae and macrophytes to macroinvertebrates and fish. River management and restoration are also considered in detail, making this volume of direct relevance to those concerned with cutting edge research and its application for water resource management. Aimed at academics and postgraduate researchers in departments of physical geography, earth sciences, environmental science, environmental management, civil engineering, biology, zoology, botany and ecology; Ecohydraulics: An Integrated Approach will be of direct relevance to academics, researchers and professionals working in environmental research organisations, national agencies and consultancies.
