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When trends intersect: The challenge of protecting freshwater ecosystems under multiple land use and hydrological intensification scenarios

Davis, Jenny A., O'Grady, Anthony P., Dale, Allan P., Arthington, Angela H., Gell, Peter A., Driver, Patrick D., Bond, Nick, Casanova, Michelle, Finlayson, Max, Watts, Robyn J., Capon, Samantha J., Nagelkerken, Ivan, Tingley, Reid, Fry, Brian, Page, Timothy J. and Specht, Alison (2015). When trends intersect: The challenge of protecting freshwater ecosystems under multiple land use and hydrological intensification scenarios. Science of the Total Environment,534(Novemer):65-78.

Document type: Journal Article
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IRMA ID 84278914xPUB32
Title When trends intersect: The challenge of protecting freshwater ecosystems under multiple land use and hydrological intensification scenarios
Author Davis, Jenny A.
O'Grady, Anthony P.
Dale, Allan P.
Arthington, Angela H.
Gell, Peter A.
Driver, Patrick D.
Bond, Nick
Casanova, Michelle
Finlayson, Max
Watts, Robyn J.
Capon, Samantha J.
Nagelkerken, Ivan
Tingley, Reid
Fry, Brian
Page, Timothy J.
Specht, Alison
Journal Name Science of the Total Environment
Publication Date 2015
Volume Number 534
Issue Number Novemer
ISSN 0048-9697   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-84938987840
Start Page 65
End Page 78
Total Pages 14
Place of Publication Netherlands
Publisher Elsevier BV
HERDC Category C1 - Journal Article (DIISR)
Abstract Intensification of the use of natural resources is a world-wide trend driven by the increasing demand for water, food, fibre, minerals and energy. These demands are the result of a rising world population, increasing wealth and greater global focus on economic growth. Land use intensification, together with climate change, is also driving intensification of the global hydrological cycle. Both processes will have major socio-economic and ecological implications for global water availability. In this paper we focus on the implications of land use intensification for the conservation and management of freshwater ecosystems using Australia as an example. We consider this in the light of intensification of the hydrologic cycle due to climate change, and associated hydrological scenarios that include the occurrence of more intense hydrological events (extreme storms, larger floods and longer droughts). We highlight the importance of managing water quality, the value of providing environmental flows within a watershed framework and the critical role that innovative science and adaptive management must play in developing proactive and robust responses to intensification. We also suggest research priorities to support improved systemic governance, including adaptation planning and management to maximise freshwater biodiversity outcomes while supporting the socio-economic objectives driving land use intensification. Further research priorities include: i) determining the relative contributions of surface water and groundwater in supporting freshwater ecosystems; ii) identifying and protecting freshwater biodiversity hotspots and refugia; iii) improving our capacity to model hydro-ecological relationships and predict ecological outcomes from land use intensification and climate change; iv) developing an understanding of long term ecosystem behaviour; and v) exploring systemic approaches to enhancing governance systems, including planning and management systems affecting freshwater outcomes. A major policy challenge will be the integration of land and water management, which increasingly are being considered within different policy frameworks.
Keywords Land use intensification
Hydrological intensification
Climate change
Freshwater biodiversity
Freshwater ecosystems
Extreme events
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