Advances in impacts of climate change on surface water quality

Global climate change is having an impact on the water cycle.The spatial and temporal variation in water quantity and quality due to climate change has aroused great concerns among scientists and politicians all over the world.At present,most research activities concentrate on the assessment of climate change impacts on surface water quantity,and only few reports focuse on the water quality concern.Global climate change mainly includes changes in precipitation,temperature,radiation and wind speed.This paper reviews the research advances in the assessment of surface water quality due to the effects of rising temperatures and changing precipitation patterns,as well as the variation in wind-speed patterns,the radiation enhancement,and the changes in sunshine time.The paper demonstrates how changes in these climate parameters over time and space affect the surface water quality and environment.This is done through analyzing the direct and indirect influences of parameter variations on the water pollutant sources,migrations and transformations,as well as the rate of biochemical reactions and the ecological effect of pollution.And finally,research perspectives on the subject are provided from micro-,meso-and macro-point of view,respectively.