Study on the pH of Groundwater and Its Controlling Factors in the Poyang Lake Area,Jiangxi
The pH value is an essential hydrogeochemical parameter affecting the chemical species in the groundwater.The groundwater in the Poyang Lake area is of great importance to the ecosystem of lake and wet-land,and is the vital water resource for industrial and agricultural utilizations,however,only there are few stu-dies on the pH of the groundwater in the Poyang Lake aera.Through the investigation of the values of pH,and components of NO3,Cl,HCO3,SO4,Ca,Mg,Na,and K in the collected 56 groundwater samples,we studied the distribution and its controlling factors of the groundwater pH in the Poyang Lake area during both dry and wet seasons using multivariate statistics analysis and spatial analysis.It shows that the groundwater in the Poyang Lake area is slightly acid.The pH of groundwater ranges from 4.75 to 8.41 with an average of 6.43 during the dry season,while ranging from 4.76 to 7.43(average value 6.05)during the wet season.Groundw-ater pH in the Poyang Lake area presents spatial difference and varies with the hydrogeochemical types.This study infers that the potential effects on the pH of groundwater in the Poyang Lake area are acid rain,soil types,and presence of carbonate rocks.The results in this study will benefit the management of groundwater resources and groundwater pollution prevention in the Poyang Lake area.
国家科技期刊平台
NSTL
万方数据
维普
