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Article

How Do Terrestrial Determinants Impact the Response of Water Quality to Climate Drivers?—An Elasticity Perspective on the Water–Land–Climate Nexus

1
School of Environment, Harbin Institute of Technology, Harbin 150090, China
2
Department of Civil Engineering, University of Engineering and Technology Peshawar (Bannu Campus), Bannu 25000, Pakistan
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School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
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School of Civil and Environmental Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
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Department of Horticulture, Zhejiang University, Hangzhou 310058, China
*
Author to whom correspondence should be addressed.
Sustainability 2017, 9(11), 2118; https://doi.org/10.3390/su9112118
Received: 16 September 2017 / Revised: 7 November 2017 / Accepted: 15 November 2017 / Published: 17 November 2017
(This article belongs to the Special Issue Impacts of Climate Change on Hydrology, Water Quality and Ecology)
Investigating water–land–climate interactions is critical for urban development and watershed management. This study examined this nexus by elasticity and statistical approaches through the lens of three watersheds: The Yukon, Mekong and Murray. Here, this study reports the fundamental characteristics, explanations and ecological and management implications of terrestrial determinant influence on the response of water quality to climate drivers. The stability of the response, measured by climate elasticity of water quality (CEWQ), is highly dependent on terrestrial determinants, with strong impacts from anthropogenic biomes and low impacts from surficial geology. Compared to temperature elasticity, precipitation elasticity of water quality is more unstable due to its possible linkages with many terrestrial determinants. Correlation and linear models were developed for the interaction system, which uncovered many interesting scenarios. The results implied that watersheds with a higher ratio of rangeland biomes have a lower risk of instability as compared to watersheds with a higher proportion of dense settlement, cropland and forested biomes. This study discusses some of the most essential pathways where instability might adversely affect CEWQ parameters and recommends suggestions for policy makers to alleviate the instability impacts to bring sustainability to the water environment. View Full-Text
Keywords: water quality; temperature elasticity; precipitation elasticity; anthropogenic biomes; surficial geology; nexus water quality; temperature elasticity; precipitation elasticity; anthropogenic biomes; surficial geology; nexus
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MDPI and ACS Style

Khan, A.U.; Jiang, J.; Sharma, A.; Wang, P.; Khan, J. How Do Terrestrial Determinants Impact the Response of Water Quality to Climate Drivers?—An Elasticity Perspective on the Water–Land–Climate Nexus. Sustainability 2017, 9, 2118. https://doi.org/10.3390/su9112118

AMA Style

Khan AU, Jiang J, Sharma A, Wang P, Khan J. How Do Terrestrial Determinants Impact the Response of Water Quality to Climate Drivers?—An Elasticity Perspective on the Water–Land–Climate Nexus. Sustainability. 2017; 9(11):2118. https://doi.org/10.3390/su9112118

Chicago/Turabian Style

Khan, Afed U., Jiping Jiang, Ashish Sharma, Peng Wang, and Jehanzeb Khan. 2017. "How Do Terrestrial Determinants Impact the Response of Water Quality to Climate Drivers?—An Elasticity Perspective on the Water–Land–Climate Nexus" Sustainability 9, no. 11: 2118. https://doi.org/10.3390/su9112118

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