Abstract
Human modification of the global hydrologic cycle through the
building and operation of hundreds of thousands of dams and
diversions has significantly altered fluvial processes, leading to
impairment of river ecosystem function and biodiversity loss
worldwide. The concept of environmental flows (e-flows)
emerged to mitigate the undesirable hydrological impacts of
dams and water diversions, in order to strengthen ecologically
informed water management. In this paper, we outline the
scientific foundations and progressive development of the
current e-flows framework over the last 25 years, identifying
three discrete periods in its history: emergence and synthesis,
consolidation and expansion, and globalization. We highlight
the evolving challenges and audiences that e-flows engages,
and discuss the challenges facing the framework during the
current period of rapid global change. For e-flows to contribute
most effectively to sustainable freshwater management on a
global scale, it must, first, move from a focus on restoration to
one of adaptation to climate and other environmental change
stressors, second, expand its scale from single sites to whole
river basins, and third, broaden its audience to embrace socialecological
sustainability that balances freshwater conservation
needs with human well-being in both developing and
developed economies alike.
building and operation of hundreds of thousands of dams and
diversions has significantly altered fluvial processes, leading to
impairment of river ecosystem function and biodiversity loss
worldwide. The concept of environmental flows (e-flows)
emerged to mitigate the undesirable hydrological impacts of
dams and water diversions, in order to strengthen ecologically
informed water management. In this paper, we outline the
scientific foundations and progressive development of the
current e-flows framework over the last 25 years, identifying
three discrete periods in its history: emergence and synthesis,
consolidation and expansion, and globalization. We highlight
the evolving challenges and audiences that e-flows engages,
and discuss the challenges facing the framework during the
current period of rapid global change. For e-flows to contribute
most effectively to sustainable freshwater management on a
global scale, it must, first, move from a focus on restoration to
one of adaptation to climate and other environmental change
stressors, second, expand its scale from single sites to whole
river basins, and third, broaden its audience to embrace socialecological
sustainability that balances freshwater conservation
needs with human well-being in both developing and
developed economies alike.
Original language | English |
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Pages (from-to) | 140 |
Number of pages | 1 |
Journal | Current Opinion in Environmental Sustainability |
Volume | 7 |
DOIs |
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Publication status | Published - Apr 2014 |
Externally published | Yes |