articleRiver Research and ApplicationsSep 1, 2003Closed access

A global perspective on environmental flow assessment: emerging trends in the development and application of environmental flow methodologies for rivers

RERebecca E. Tharme

University of Cape Town

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Abstract

Abstract Recognition of the escalating hydrological alteration of rivers on a global scale and resultant environmental degradation, has led to the establishment of the science of environmental flow assessment whereby the quantity and quality of water required for ecosystem conservation and resource protection are determined. A global review of the present status of environmental flow methodologies revealed the existence of some 207 individual methodologies, recorded for 44 countries within six world regions. These could be differentiated into hydrological, hydraulic rating, habitat simulation and holistic methodologies, with a further two categories representing combination‐type and other approaches. Although…

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Topics & keywords

Topics
Keywords
  • Environmental flow
  • Resource (disambiguation)
  • Scale (ratio)
  • Environmental resource management
  • Environmental science
  • Environmental planning
  • Environmental impact assessment
  • Sustainable development
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