The challenge of providing environmental flow rules to sustain river ecosystems

A.H. Arthington, S.E. Bunn, N.L. Poff, R.J. Naiman

    Research output: Contribution to journalArticle

    685 Citations (Scopus)

    Abstract

    Accounting for natural differences in flow variability among rivers, and understanding the importance of this for the protection of freshwater biodiversity and maintenance of goods and services that rivers provide, is a great challenge for water managers and scientists. Nevertheless, despite considerable progress in understanding how flow variability sustains river ecosystems, there is a growing temptation to ignore natural system complexity in favor of simplistic, static, environmental flow "rules" to resolve pressing river management issues. We argue that such approaches are misguided and will ultimately contribute to further degradation of river ecosystems. In the absence of detailed empirical information of environmental flow requirements for rivers, we propose a generic approach that incorporates essential aspects of natural flow variability shared across particular classes of rivers that can be validated with empirical biological data and other information in a calibration process. We argue that this approach can bridge the gap between simple hydrological "rules of thumb" and more comprehensive environmental flow assessments and experimental flow restoration projects. © 2006 by the the Ecological Society of America.
    Original languageUndefined
    Pages (from-to)1311-1318
    Number of pages8
    JournalEcological Applications
    Volume16
    Issue number4
    DOIs
    Publication statusPublished - 2006

    Cite this

    Arthington, A.H. ; Bunn, S.E. ; Poff, N.L. ; Naiman, R.J. / The challenge of providing environmental flow rules to sustain river ecosystems. In: Ecological Applications. 2006 ; Vol. 16, No. 4. pp. 1311-1318.
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    The challenge of providing environmental flow rules to sustain river ecosystems. / Arthington, A.H.; Bunn, S.E.; Poff, N.L.; Naiman, R.J.

    In: Ecological Applications, Vol. 16, No. 4, 2006, p. 1311-1318.

    Research output: Contribution to journalArticle

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    AU - Arthington, A.H.

    AU - Bunn, S.E.

    AU - Poff, N.L.

    AU - Naiman, R.J.

    N1 - cited By 549

    PY - 2006

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    AB - Accounting for natural differences in flow variability among rivers, and understanding the importance of this for the protection of freshwater biodiversity and maintenance of goods and services that rivers provide, is a great challenge for water managers and scientists. Nevertheless, despite considerable progress in understanding how flow variability sustains river ecosystems, there is a growing temptation to ignore natural system complexity in favor of simplistic, static, environmental flow "rules" to resolve pressing river management issues. We argue that such approaches are misguided and will ultimately contribute to further degradation of river ecosystems. In the absence of detailed empirical information of environmental flow requirements for rivers, we propose a generic approach that incorporates essential aspects of natural flow variability shared across particular classes of rivers that can be validated with empirical biological data and other information in a calibration process. We argue that this approach can bridge the gap between simple hydrological "rules of thumb" and more comprehensive environmental flow assessments and experimental flow restoration projects. © 2006 by the the Ecological Society of America.

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