Impacts of climate change on TN load and its control in a River Basin with complex pollution sources

The Science of the Total Environment
Xiaoying YangGuoqing Wang

Abstract

It is increasingly recognized that climate change could affect the quality of water through complex natural and anthropogenic mechanisms. Previous studies on climate change and water quality have mostly focused on assessing its impact on pollutant loads from agricultural runoff. A sub-daily SWAT model was developed to simulate the discharge, transport, and transformation of nitrogen from all known anthropogenic sources including industries, municipal sewage treatment plants, concentrated and scattered feedlot operations, rural households, and crop production in the Upper Huai River Basin. This is a highly polluted basin with total nitrogen (TN) concentrations frequently exceeding Class V of the Chinese Surface Water Quality Standard (GB3838-2002). Climate change projections produced by 16 Global Circulation Models (GCMs) under the RCP 4.5 and RCP 8.5 scenarios in the mid (2040-2060) and late (2070-2090) century were used to drive the SWAT model to evaluate the impacts of climate change on both the TN loads and the effectiveness of three water pollution control measures (reducing fertilizer use, constructing vegetative filter strips, and improving septic tank performance) in the basin. SWAT simulation results have indicated that...Continue Reading

References

Feb 12, 2010·Nature·Richard H MossThomas J Wilbanks
Mar 8, 2013·The Science of the Total Environment·Yuzhou LuoMinghua Zhang
Mar 25, 2014·Journal of the Air & Waste Management Association·Thomas C PetersonXungang Yin
Jan 21, 2015·Journal of Environmental Quality·Philip W GassmanRaghavan Srinivasan
Jul 21, 2015·The Science of the Total Environment·Marianne MilanoRolf Weingartner
Feb 6, 2016·The Science of the Total Environment·Dejian ZhangHuaxia Yao
Mar 7, 2017·The Science of the Total Environment·Manoj K ShresthaWayne Meyer

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Citations

Feb 24, 2019·Environmental Science and Pollution Research International·Pei MaXinqing Han
Sep 23, 2019·Environmental Management·Amira BoukariJean-François Deliège

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