Predicting climate change impact on nutrient pollution in waterways: a case study in the upper catchment of the Latrobe River, Australia

Alam, Md Jahangir and Dutta, Dushmanta (2013) Predicting climate change impact on nutrient pollution in waterways: a case study in the upper catchment of the Latrobe River, Australia. Ecohydrology, 6 (1). pp. 73-82. ISSN 1936-0584

Abstract

Climate change, together with the increasing influence of anthropogenic activities in the atmosphere, has impacted ecosystems enormously, escalating much concern for pollution control and management. Proper assessment of the effect of temperature rise due to global warming and the subsequent changes in hydrology on catchment biogeochemical processes is essential for accurate prediction of pollution level. Not many studies have been carried out on the aspect of climate change-driven nutrient pollution assessment, and inability of many existing modelling tools persists. With these research needs in focus, this study has made an assessment of climate change impact on nutrient pollution by applying a distributed hydrological modelling tool with newly developed nutrient modules that incorporate climate-based description of catchment and in-stream processes. The model has been applied to the Latrobe River basin in Australia and calibrated and validated prior to simulation of climate change scenarios. The scenarios have been developed on the basis of the Intergovernmental Panel on Climate Change projections of higher-emission scenario A1F1 for this region. The model has predicted the impact of temperature rise on the nutrient-transformation processes and the subsequent releases into waterways for projected high-flow and low-flow situations. The results show that climate change is likely to contribute to increase in nutrient pollution in the waterways. The results have been used to assess future stream water quality condition in the study area.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 04 Aug 2016 03:08
Last Modified: 13 Feb 2017 05:11
Uncontrolled Keywords: nutrient pollution; hydrology; climate change impact; water quality
Fields of Research : 04 Earth Sciences > 0406 Physical Geography and Environmental Geoscience > 040608 Surfacewater Hydrology
04 Earth Sciences > 0406 Physical Geography and Environmental Geoscience > 040604 Natural Hazards
09 Engineering > 0905 Civil Engineering > 090508 Water Quality Engineering
05 Environmental Sciences > 0502 Environmental Science and Management > 050209 Natural Resource Management
04 Earth Sciences > 0499 Other Earth Sciences > 049999 Earth Sciences not elsewhere classified
09 Engineering > 0905 Civil Engineering > 090509 Water Resources Engineering
Socio-Economic Objective: D Environment > 96 Environment > 9610 Natural Hazards > 961005 Natural Hazards in Fresh, Ground and Surface Water Environments
D Environment > 96 Environment > 9603 Climate and Climate Change > 960307 Effects of Climate Change and Variability on Australia (excl. Social Impacts)
E Expanding Knowledge > 97 Expanding Knowledge > 970104 Expanding Knowledge in the Earth Sciences
D Environment > 96 Environment > 9611 Physical and Chemical Conditions of Water > 961103 Physical and Chemical Conditions of Water in Fresh, Ground and Surface Water Environments (excl. Urban and Industrial Use)
Identification Number or DOI: 10.1002/eco.282
URI: http://eprints.usq.edu.au/id/eprint/27556

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