Effects of Rainfall on Water Quality of Aquaculture along the Coastal Areas of Jiangsu Province and Countermeasures

[Objective] The study aimed to decrease the effects of rainfall on water quality of aquaculture along the coastal areas of Jiangsu Province and improve the yield and quality of aquatic products.[Method] We firstly designed the methods to calculate average pH of different rainfalls,total precipitation,as well as the changes of pH and salinity in the studied pond and coastal culture zone,then analyzed the dynamic variation of precipitation,pH and salinity caused by rainfall to discuss the effects of rainfall on water quality of aquaculture along the coastal areas of Jiangsu through quantitative and qualitative analysis,finally put forward some productive countermeasures to improve water quality of aquaculture.[Result] Acid rain occurred frequently in Jiangsu Province,and pH of pond water was reduced obviously during each heavy rain,while rainfall also had certain effects on water quality of the coastal culture zone.Meanwhile,there was no distinct influence on salinity.We can improve water quality of aquaculture through scientific management.[Conclusion] Scientifically choosing culture zones,timely control water level of ponds,reasonably arranging the amount and time of flood discharge,changing culture mode,etc.are effective measures to improve water quality of aquaculture,so as to minimize the impacts of rainfall on water quality of aquaculture along coastal areas and realize high and stable yield of aquatic products.