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  • Bledsoe, Larry W.

    Idioma: Inglés

    Publicado por Bookbaby, 2017

    ISBN 10: 1543906125 ISBN 13: 9781543906127

    Librería: ThriftBooks-Dallas, Dallas, TX, Estados Unidos de America

    Calificación del vendedor: 5 de 5 estrellas Valoración 5 estrellas, Más información sobre las valoraciones de los vendedores

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    EUR 11,67

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    Paperback. Condición: Fair. No Jacket. Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less.

  • Bledsoe, Larry W.

    Idioma: Inglés

    Publicado por Bookbaby, 2017

    ISBN 10: 1543906125 ISBN 13: 9781543906127

    Librería: ThriftBooks-Dallas, Dallas, TX, Estados Unidos de America

    Calificación del vendedor: 5 de 5 estrellas Valoración 5 estrellas, Más información sobre las valoraciones de los vendedores

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    EUR 11,67

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    Paperback. Condición: Very Good. No Jacket. May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less.

  • Becker, Paula; Bledsoe, Larry; Mok, Paul P

    Idioma: Inglés

    Publicado por London Enterprises, 1977

    Librería: OddReads, Harper, TX, Estados Unidos de America

    Calificación del vendedor: 5 de 5 estrellas Valoración 5 estrellas, Más información sobre las valoraciones de los vendedores

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    EUR 9,02

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    Hardcover. Condición: As New. Estado de la sobrecubierta: As New. Dust Jacket in mylar.

  • Larry A. Roesner

    Idioma: Inglés

    Publicado por IWA Publishing, 2003

    ISBN 10: 1843396483 ISBN 13: 9781843396482

    Librería: PBShop.store UK, Fairford, GLOS, Reino Unido

    Calificación del vendedor: 5 de 5 estrellas Valoración 5 estrellas, Más información sobre las valoraciones de los vendedores

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    EUR 147,65

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    Cantidad disponible: 10 disponibles

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    PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000.

  • Larry A. Roesner

    Idioma: Inglés

    Publicado por IWA Publishing, 2003

    ISBN 10: 1843396483 ISBN 13: 9781843396482

    Librería: PBShop.store US, Wood Dale, IL, Estados Unidos de America

    Calificación del vendedor: 5 de 5 estrellas Valoración 5 estrellas, Más información sobre las valoraciones de los vendedores

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    EUR 152,88

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    Cantidad disponible: 10 disponibles

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    PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000.

  • ROESNER, LARRY A.

    Idioma: Inglés

    Publicado por Iwa Pub, 2003

    ISBN 10: 1843396483 ISBN 13: 9781843396482

    Librería: Speedyhen, Hertfordshire, Reino Unido

    Calificación del vendedor: 5 de 5 estrellas Valoración 5 estrellas, Más información sobre las valoraciones de los vendedores

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    EUR 130,73

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    Cantidad disponible: 10 disponibles

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    Condición: NEW.

  • Larry A. Roesner

    Idioma: Inglés

    Publicado por IWA Publishing, London, 2003

    ISBN 10: 1843396483 ISBN 13: 9781843396482

    Librería: Grand Eagle Retail, Bensenville, IL, Estados Unidos de America

    Calificación del vendedor: 5 de 5 estrellas Valoración 5 estrellas, Más información sobre las valoraciones de los vendedores

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    Original o primera edición

    EUR 181,92

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    Paperback. Condición: new. Paperback. This study explores the current state of knowledge with respect to the effects of wet weather flows from urban areas on the physical character of aquatic habitat. It identifies knowledge gaps with respect to our ability to define the cause-effect relationships, examines the comprehensiveness of the data used in support of the published literature in the subject area, and makes a qualitative determination of the usefulness of those data for further analysis to increase our knowledge in the subject area. Finally, it recommends further research studies that will increase our knowledge in the subject area, with emphasis on pilot-scale projects that can be used to develop practical protocols for preventing or mitigating the effects.Major findings and conclusions are: 1) we lack a solid conceptual framework for predicting the impact of large-scale watershed modifications and wet weather flows on ecological processes that influence stream communities; 2) there is a need for longer-term monitoring; 3) there is no widely accepted system for quantifying geomorphic instability and degradation of physical habitat; 4) there is a need for process-based stream classification; 5) specific links between urbanization characteristics and stream degradation are lacking; 6) there is a need for urban best management practice (BMP) assessment standards; and 7) developing a multi-scale understanding of habitat potential in human-dominated watersheds is needed. The report recommends a research program that first and foremost, includes comprehensive, long-term monitoring augmented with mathematical modeling of the linkages between development style/drainage system design, flow regime, and multi-scale changes in physical habitat and biotic response.Improved diagnosis and predictive understanding of future change require multifaceted, multiscale, and multidisciplinary studies based on a firm understanding of the history and processes operating in a drainage basin. Detailed long-term analyses of the influence of hydrologic regime and channel morphology on differences between communities in recruitment, immigration/emigration, mortality, and age structure are also needed. Finally, future research should directly examine tradeoffs between: 1) flood mitigation versus channel roughness, habitat heterogeneity, debris inputs, and riparian protection; 2) chemical water quality improvement through extended detention versus geomorphically-based flow regime controls; and, 3) rehabilitation of aquatic habitat using static features versus allowing the potential for dynamic adjustments in channel form and habitat structure.It is extremely important that the research be pragmatic, and focus on developing pilot/demonstration studies that will lead to design guidance that municipalities can use to design new systems, or improve existing systems, that will protect not only the safety and welfare of the citizenry that it serves, but also the aquatic ecosystems in the streams that receive the wet weather discharges from these urbanized sites. This study explores the current state of knowledge with respect to the effects of wet weather flows from urban areas on the physical character of aquatic habitat. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.

  • Bledsoe Brian P Roesner Larry A

    Idioma: Inglés

    Publicado por IWA Publishing, 2003

    ISBN 10: 1843396483 ISBN 13: 9781843396482

    Librería: Majestic Books, Hounslow, Reino Unido

    Calificación del vendedor: 4 de 5 estrellas Valoración 4 estrellas, Más información sobre las valoraciones de los vendedores

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    EUR 177,07

    Envío por EUR 7,59
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    Cantidad disponible: 3 disponibles

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    Condición: New. pp. 204 6:B&W 8.25 x 11 in or 280 x 210 mm Perfect Bound on White w/Gloss Lam.

  • Larry A. Roesner, Brian P. Bledsoe

    Idioma: Inglés

    Publicado por IWA Publishing, GB, 2003

    ISBN 10: 1843396483 ISBN 13: 9781843396482

    Librería: Rarewaves USA, OSWEGO, IL, Estados Unidos de America

    Calificación del vendedor: 5 de 5 estrellas Valoración 5 estrellas, Más información sobre las valoraciones de los vendedores

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    EUR 191,60

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    Cantidad disponible: 5 disponibles

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    Paperback. Condición: New. This study explores the current state of knowledge with respect to the effects of wet weather flows from urban areas on the physical character of aquatic habitat. It identifies knowledge gaps with respect to our ability to define the cause-effect relationships, examines the comprehensiveness of the data used in support of the published literature in the subject area, and makes a qualitative determination of the usefulness of those data for further analysis to increase our knowledge in the subject area. Finally, it recommends further research studies that will increase our knowledge in the subject area, with emphasis on pilot-scale projects that can be used to develop practical protocols for preventing or mitigating the effects.Major findings and conclusions are: 1) we lack a solid conceptual framework for predicting the impact of large-scale watershed modifications and wet weather flows on ecological processes that influence stream communities; 2) there is a need for longer-term monitoring; 3) there is no widely accepted system for quantifying geomorphic instability and degradation of physical habitat; 4) there is a need for process-based stream classification; 5) specific links between urbanization characteristics and stream degradation are lacking; 6) there is a need for urban best management practice (BMP) assessment standards; and 7) developing a multi-scale understanding of habitat potential in human-dominated watersheds is needed. The report recommends a research program that first and foremost, includes comprehensive, long-term monitoring augmented with mathematical modeling of the linkages between development style/drainage system design, flow regime, and multi-scale changes in physical habitat and biotic response. Improved diagnosis and predictive understanding of future change require multifaceted, multiscale, and multidisciplinary studies based on a firm understanding of the history and processes operating in a drainage basin. Detailed long-term analyses of the influence of hydrologic regime and channel morphology on differences between communities in recruitment, immigration/emigration, mortality, and age structure are also needed. Finally, future research should directly examine tradeoffs between: 1) flood mitigation versus channel roughness, habitat heterogeneity, debris inputs, and riparian protection; 2) chemical water quality improvement through extended detention versus geomorphically-based flow regime controls; and, 3) rehabilitation of aquatic habitat using static features versus allowing the potential for dynamic adjustments in channel form and habitat structure. It is extremely important that the research be pragmatic, and focus on developing pilot/demonstration studies that will lead to design guidance that municipalities can use to design new systems, or improve existing systems, that will protect not only the safety and welfare of the citizenry that it serves, but also the aquatic ecosystems in the streams that receive th.

  • Brian P Bledsoe Larry A Roesner

    Idioma: Inglés

    Publicado por IWA Publishing, 2003

    ISBN 10: 1843396483 ISBN 13: 9781843396482

    Librería: Books Puddle, New York, NY, Estados Unidos de America

    Calificación del vendedor: 4 de 5 estrellas Valoración 4 estrellas, Más información sobre las valoraciones de los vendedores

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    EUR 188,33

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    Cantidad disponible: 3 disponibles

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    Condición: New. pp. 204.

  • Roesner, Larry A.

    Idioma: Inglés

    Publicado por IWA Publishing, 2003

    ISBN 10: 1843396483 ISBN 13: 9781843396482

    Librería: Kennys Bookshop and Art Galleries Ltd., Galway, GY, Irlanda

    Calificación del vendedor: 5 de 5 estrellas Valoración 5 estrellas, Más información sobre las valoraciones de los vendedores

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    EUR 178,21

    Envío por EUR 10,50
    Se envía de Irlanda a Estados Unidos de America

    Cantidad disponible: 10 disponibles

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    Condición: New. 2003. paperback. . . . . .

  • Larry A. Roesner, Brian P. Bledsoe

    Idioma: Inglés

    Publicado por IWA Publishing, GB, 2003

    ISBN 10: 1843396483 ISBN 13: 9781843396482

    Librería: Rarewaves.com USA, London, LONDO, Reino Unido

    Calificación del vendedor: 5 de 5 estrellas Valoración 5 estrellas, Más información sobre las valoraciones de los vendedores

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    EUR 203,82

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    Se envía de Reino Unido a Estados Unidos de America

    Cantidad disponible: 5 disponibles

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    Paperback. Condición: New. This study explores the current state of knowledge with respect to the effects of wet weather flows from urban areas on the physical character of aquatic habitat. It identifies knowledge gaps with respect to our ability to define the cause-effect relationships, examines the comprehensiveness of the data used in support of the published literature in the subject area, and makes a qualitative determination of the usefulness of those data for further analysis to increase our knowledge in the subject area. Finally, it recommends further research studies that will increase our knowledge in the subject area, with emphasis on pilot-scale projects that can be used to develop practical protocols for preventing or mitigating the effects.Major findings and conclusions are: 1) we lack a solid conceptual framework for predicting the impact of large-scale watershed modifications and wet weather flows on ecological processes that influence stream communities; 2) there is a need for longer-term monitoring; 3) there is no widely accepted system for quantifying geomorphic instability and degradation of physical habitat; 4) there is a need for process-based stream classification; 5) specific links between urbanization characteristics and stream degradation are lacking; 6) there is a need for urban best management practice (BMP) assessment standards; and 7) developing a multi-scale understanding of habitat potential in human-dominated watersheds is needed. The report recommends a research program that first and foremost, includes comprehensive, long-term monitoring augmented with mathematical modeling of the linkages between development style/drainage system design, flow regime, and multi-scale changes in physical habitat and biotic response. Improved diagnosis and predictive understanding of future change require multifaceted, multiscale, and multidisciplinary studies based on a firm understanding of the history and processes operating in a drainage basin. Detailed long-term analyses of the influence of hydrologic regime and channel morphology on differences between communities in recruitment, immigration/emigration, mortality, and age structure are also needed. Finally, future research should directly examine tradeoffs between: 1) flood mitigation versus channel roughness, habitat heterogeneity, debris inputs, and riparian protection; 2) chemical water quality improvement through extended detention versus geomorphically-based flow regime controls; and, 3) rehabilitation of aquatic habitat using static features versus allowing the potential for dynamic adjustments in channel form and habitat structure. It is extremely important that the research be pragmatic, and focus on developing pilot/demonstration studies that will lead to design guidance that municipalities can use to design new systems, or improve existing systems, that will protect not only the safety and welfare of the citizenry that it serves, but also the aquatic ecosystems in the streams that receive th.

  • Larry, A Roesner/ Brian , P Bledsoe

    Idioma: Inglés

    Publicado por Intl Water Assn, 2003

    ISBN 10: 1843396483 ISBN 13: 9781843396482

    Librería: Revaluation Books, Exeter, Reino Unido

    Calificación del vendedor: 5 de 5 estrellas Valoración 5 estrellas, Más información sobre las valoraciones de los vendedores

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    EUR 192,10

    Envío por EUR 14,60
    Se envía de Reino Unido a Estados Unidos de America

    Cantidad disponible: 2 disponibles

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    Paperback. Condición: Brand New. 1st edition. 197 pages. 11.00x8.25x0.43 inches. In Stock.

  • Bledsoe Brian P Roesner Larry A

    Idioma: Inglés

    Publicado por IWA Publishing, 2003

    ISBN 10: 1843396483 ISBN 13: 9781843396482

    Librería: Biblios, Frankfurt am main, HESSE, Alemania

    Calificación del vendedor: 4 de 5 estrellas Valoración 4 estrellas, Más información sobre las valoraciones de los vendedores

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    EUR 196,74

    Envío por EUR 9,95
    Se envía de Alemania a Estados Unidos de America

    Cantidad disponible: 3 disponibles

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    Condición: New. pp. 204.

  • Roesner, Larry A|Bledsoe, Brian P

    Idioma: Inglés

    Publicado por IWA PUB, 2003

    ISBN 10: 1843396483 ISBN 13: 9781843396482

    Librería: moluna, Greven, Alemania

    Calificación del vendedor: 5 de 5 estrellas Valoración 5 estrellas, Más información sobre las valoraciones de los vendedores

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    EUR 167,10

    Envío por EUR 48,99
    Se envía de Alemania a Estados Unidos de America

    Cantidad disponible: Más de 20 disponibles

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    Condición: New. KlappentextrnrnThis study explores the current state of knowledge with respect to the effects of wet weather flows from urban areas on the physical character of aquatic habitat. It identifies knowledge gaps with respect to our ability to define.

  • Roesner, Larry A.

    Idioma: Inglés

    Publicado por IWA Publishing, 2003

    ISBN 10: 1843396483 ISBN 13: 9781843396482

    Librería: Kennys Bookstore, Olney, MD, Estados Unidos de America

    Calificación del vendedor: 5 de 5 estrellas Valoración 5 estrellas, Más información sobre las valoraciones de los vendedores

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    EUR 226,17

    Envío por EUR 9,19
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    Cantidad disponible: 10 disponibles

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    Condición: New. 2003. paperback. . . . . . Books ship from the US and Ireland.

  • Larry A. Roesner, Brian P. Bledsoe

    Idioma: Inglés

    Publicado por IWA Publishing, GB, 2003

    ISBN 10: 1843396483 ISBN 13: 9781843396482

    Librería: Rarewaves USA United, OSWEGO, IL, Estados Unidos de America

    Calificación del vendedor: 5 de 5 estrellas Valoración 5 estrellas, Más información sobre las valoraciones de los vendedores

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    EUR 193,99

    Envío por EUR 43,77
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    Cantidad disponible: 5 disponibles

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    Paperback. Condición: New. This study explores the current state of knowledge with respect to the effects of wet weather flows from urban areas on the physical character of aquatic habitat. It identifies knowledge gaps with respect to our ability to define the cause-effect relationships, examines the comprehensiveness of the data used in support of the published literature in the subject area, and makes a qualitative determination of the usefulness of those data for further analysis to increase our knowledge in the subject area. Finally, it recommends further research studies that will increase our knowledge in the subject area, with emphasis on pilot-scale projects that can be used to develop practical protocols for preventing or mitigating the effects.Major findings and conclusions are: 1) we lack a solid conceptual framework for predicting the impact of large-scale watershed modifications and wet weather flows on ecological processes that influence stream communities; 2) there is a need for longer-term monitoring; 3) there is no widely accepted system for quantifying geomorphic instability and degradation of physical habitat; 4) there is a need for process-based stream classification; 5) specific links between urbanization characteristics and stream degradation are lacking; 6) there is a need for urban best management practice (BMP) assessment standards; and 7) developing a multi-scale understanding of habitat potential in human-dominated watersheds is needed. The report recommends a research program that first and foremost, includes comprehensive, long-term monitoring augmented with mathematical modeling of the linkages between development style/drainage system design, flow regime, and multi-scale changes in physical habitat and biotic response. Improved diagnosis and predictive understanding of future change require multifaceted, multiscale, and multidisciplinary studies based on a firm understanding of the history and processes operating in a drainage basin. Detailed long-term analyses of the influence of hydrologic regime and channel morphology on differences between communities in recruitment, immigration/emigration, mortality, and age structure are also needed. Finally, future research should directly examine tradeoffs between: 1) flood mitigation versus channel roughness, habitat heterogeneity, debris inputs, and riparian protection; 2) chemical water quality improvement through extended detention versus geomorphically-based flow regime controls; and, 3) rehabilitation of aquatic habitat using static features versus allowing the potential for dynamic adjustments in channel form and habitat structure. It is extremely important that the research be pragmatic, and focus on developing pilot/demonstration studies that will lead to design guidance that municipalities can use to design new systems, or improve existing systems, that will protect not only the safety and welfare of the citizenry that it serves, but also the aquatic ecosystems in the streams that receive th.

  • Larry A. Roesner

    Idioma: Inglés

    Publicado por IWA Publishing Mär 2003, 2003

    ISBN 10: 1843396483 ISBN 13: 9781843396482

    Librería: AHA-BUCH GmbH, Einbeck, Alemania

    Calificación del vendedor: 5 de 5 estrellas Valoración 5 estrellas, Más información sobre las valoraciones de los vendedores

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    EUR 183,42

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    Taschenbuch. Condición: Neu. Neuware - This study explores the current state of knowledge with respect to the effects of wet weather flows from urban areas on the physical character of aquatic habitat. It identifies knowledge gaps with respect to our ability to define the cause-effect relationships, examines the comprehensiveness of the data used in support of the published literature in the subject area, and makes a qualitative determination of the usefulness of those data for further analysis to increase our knowledge in the subject area. Finally, it recommends further research studies that will increase our knowledge in the subject area, with emphasis on pilot-scale projects that can be used to develop practical protocols for preventing or mitigating the effects. Major findings and conclusions are: 1) we lack a solid conceptual framework for predicting the impact of large-scale watershed modifications and wet weather flows on ecological processes that influence stream communities; 2) there is a need for longer-term monitoring; 3) there is no widely accepted system for quantifying geomorphic instability and degradation of physical habitat; 4) there is a need for process-based stream classification; 5) specific links between urbanization characteristics and stream degradation are lacking; 6) there is a need for urban best management practice (BMP) assessment standards; and 7) developing a multi-scale understanding of habitat potential in human-dominated watersheds is needed. The report recommends a research program that first and foremost, includes comprehensive, long-term monitoring augmented with mathematical modeling of the linkages between development style/drainage system design, flow regime, and multi-scale changes in physical habitat and biotic response. Improved diagnosis and predictive understanding of future change require multifaceted, multiscale, and multidisciplinary studies based on a firm understanding of the history and processes operating in a drainage basin. Detailed long-term analyses of the influence of hydrologic regime and channel morphology on differences between communities in recruitment, immigration/emigration, mortality, and age structure are also needed. Finally, future research should directly examine tradeoffs between: 1) flood mitigation versus channel roughness, habitat heterogeneity, debris inputs, and riparian protection; 2) chemical water quality improvement through extended detention versus geomorphically-based flow regime controls; and, 3) rehabilitation of aquatic habitat using static features versus allowing the potential for dynamic adjustments in channel form and habitat structure. It is extremely important that the research be pragmatic, and focus on developing pilot/demonstration studies that will lead to design guidance that municipalities can use to design new systems, or improve existing systems, that will protect not only the safety and welfare of the citizenry that it serves, but also the aquatic ecosystems in the streams that receive the wet weather discharges from these urbanized sites.

  • Larry A Roesner (u. a.)

    Idioma: Inglés

    Publicado por IWA PUB, 2003

    ISBN 10: 1843396483 ISBN 13: 9781843396482

    Librería: preigu, Osnabrück, Alemania

    Calificación del vendedor: 5 de 5 estrellas Valoración 5 estrellas, Más información sobre las valoraciones de los vendedores

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    EUR 184,60

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    Taschenbuch. Condición: Neu. Physical Effects of Wet Weather Flows on Aquatic Habitats | Present Knowledge and Research Needs | Larry A Roesner (u. a.) | Taschenbuch | Werf Report | Kartoniert / Broschiert | Englisch | 2003 | IWA PUB | EAN 9781843396482 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.

  • Larry A. Roesner, Brian P. Bledsoe

    Idioma: Inglés

    Publicado por IWA Publishing, GB, 2003

    ISBN 10: 1843396483 ISBN 13: 9781843396482

    Librería: Rarewaves.com UK, London, Reino Unido

    Calificación del vendedor: 5 de 5 estrellas Valoración 5 estrellas, Más información sobre las valoraciones de los vendedores

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    EUR 191,77

    Envío por EUR 75,90
    Se envía de Reino Unido a Estados Unidos de America

    Cantidad disponible: 5 disponibles

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    Paperback. Condición: New. This study explores the current state of knowledge with respect to the effects of wet weather flows from urban areas on the physical character of aquatic habitat. It identifies knowledge gaps with respect to our ability to define the cause-effect relationships, examines the comprehensiveness of the data used in support of the published literature in the subject area, and makes a qualitative determination of the usefulness of those data for further analysis to increase our knowledge in the subject area. Finally, it recommends further research studies that will increase our knowledge in the subject area, with emphasis on pilot-scale projects that can be used to develop practical protocols for preventing or mitigating the effects.Major findings and conclusions are: 1) we lack a solid conceptual framework for predicting the impact of large-scale watershed modifications and wet weather flows on ecological processes that influence stream communities; 2) there is a need for longer-term monitoring; 3) there is no widely accepted system for quantifying geomorphic instability and degradation of physical habitat; 4) there is a need for process-based stream classification; 5) specific links between urbanization characteristics and stream degradation are lacking; 6) there is a need for urban best management practice (BMP) assessment standards; and 7) developing a multi-scale understanding of habitat potential in human-dominated watersheds is needed. The report recommends a research program that first and foremost, includes comprehensive, long-term monitoring augmented with mathematical modeling of the linkages between development style/drainage system design, flow regime, and multi-scale changes in physical habitat and biotic response. Improved diagnosis and predictive understanding of future change require multifaceted, multiscale, and multidisciplinary studies based on a firm understanding of the history and processes operating in a drainage basin. Detailed long-term analyses of the influence of hydrologic regime and channel morphology on differences between communities in recruitment, immigration/emigration, mortality, and age structure are also needed. Finally, future research should directly examine tradeoffs between: 1) flood mitigation versus channel roughness, habitat heterogeneity, debris inputs, and riparian protection; 2) chemical water quality improvement through extended detention versus geomorphically-based flow regime controls; and, 3) rehabilitation of aquatic habitat using static features versus allowing the potential for dynamic adjustments in channel form and habitat structure. It is extremely important that the research be pragmatic, and focus on developing pilot/demonstration studies that will lead to design guidance that municipalities can use to design new systems, or improve existing systems, that will protect not only the safety and welfare of the citizenry that it serves, but also the aquatic ecosystems in the streams that receive th.

  • Larry A. Roesner

    Idioma: Inglés

    Publicado por IWA Publishing, London, 2003

    ISBN 10: 1843396483 ISBN 13: 9781843396482

    Librería: AussieBookSeller, Truganina, VIC, Australia

    Calificación del vendedor: 5 de 5 estrellas Valoración 5 estrellas, Más información sobre las valoraciones de los vendedores

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    Original o primera edición

    EUR 260,76

    Envío por EUR 32,39
    Se envía de Australia a Estados Unidos de America

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    Paperback. Condición: new. Paperback. This study explores the current state of knowledge with respect to the effects of wet weather flows from urban areas on the physical character of aquatic habitat. It identifies knowledge gaps with respect to our ability to define the cause-effect relationships, examines the comprehensiveness of the data used in support of the published literature in the subject area, and makes a qualitative determination of the usefulness of those data for further analysis to increase our knowledge in the subject area. Finally, it recommends further research studies that will increase our knowledge in the subject area, with emphasis on pilot-scale projects that can be used to develop practical protocols for preventing or mitigating the effects.Major findings and conclusions are: 1) we lack a solid conceptual framework for predicting the impact of large-scale watershed modifications and wet weather flows on ecological processes that influence stream communities; 2) there is a need for longer-term monitoring; 3) there is no widely accepted system for quantifying geomorphic instability and degradation of physical habitat; 4) there is a need for process-based stream classification; 5) specific links between urbanization characteristics and stream degradation are lacking; 6) there is a need for urban best management practice (BMP) assessment standards; and 7) developing a multi-scale understanding of habitat potential in human-dominated watersheds is needed. The report recommends a research program that first and foremost, includes comprehensive, long-term monitoring augmented with mathematical modeling of the linkages between development style/drainage system design, flow regime, and multi-scale changes in physical habitat and biotic response.Improved diagnosis and predictive understanding of future change require multifaceted, multiscale, and multidisciplinary studies based on a firm understanding of the history and processes operating in a drainage basin. Detailed long-term analyses of the influence of hydrologic regime and channel morphology on differences between communities in recruitment, immigration/emigration, mortality, and age structure are also needed. Finally, future research should directly examine tradeoffs between: 1) flood mitigation versus channel roughness, habitat heterogeneity, debris inputs, and riparian protection; 2) chemical water quality improvement through extended detention versus geomorphically-based flow regime controls; and, 3) rehabilitation of aquatic habitat using static features versus allowing the potential for dynamic adjustments in channel form and habitat structure.It is extremely important that the research be pragmatic, and focus on developing pilot/demonstration studies that will lead to design guidance that municipalities can use to design new systems, or improve existing systems, that will protect not only the safety and welfare of the citizenry that it serves, but also the aquatic ecosystems in the streams that receive the wet weather discharges from these urbanized sites. This study explores the current state of knowledge with respect to the effects of wet weather flows from urban areas on the physical character of aquatic habitat. Shipping may be from our Sydney, NSW warehouse or from our UK or US warehouse, depending on stock availability.