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

Article

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. https://doi.org/10.1002/eco.282
Article Title

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

ERA Journal ID40327
Article CategoryArticle
AuthorsAlam, Md Jahangir (Author) and Dutta, Dushmanta (Author)
Journal TitleEcohydrology
Journal Citation6 (1), pp. 73-82
Number of Pages10
Year2013
Place of PublicationUnited Kingdom
ISSN1936-0584
1936-0592
Digital Object Identifier (DOI)https://doi.org/10.1002/eco.282
Web Address (URL)http://onlinelibrary.wiley.com/doi/10.1002/eco.282/epdf
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.

Keywordsnutrient pollution; hydrology; climate change impact; water quality
ANZSRC Field of Research 2020370704. Surface water hydrology
370903. Natural hazards
400499. Chemical engineering not elsewhere classified
410406. Natural resource management
379999. Other earth sciences not elsewhere classified
400513. Water resources engineering
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Byline AffiliationsMonash University
Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia
Institution of OriginUniversity of Southern Queensland
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