Nitrate in Groundwater and Unsaturated Zone, Shijiazhuang City, China
Pollutants released to the land surface have to pass through the unsaturated zone (UNZ) before entering the ground-water system. This paper carried out the groundwater nitrate pollution through isotope investigation both on groundwater and soils in Shijiazhuang City in China. The results show that nitrate concentrations were higher in areas irrigated with sewage than in non-sewer irrigated areas and in general nitrate concentrations are lower in the northern part of the study area and higher in the southern part of the study area. The groundwater for village water supply has δ15N values little higher than those of chemical fertilizer soil and lower than those of manure and sewage Irrigated soil. This indicates the nitrogen is mainly from human waste and partly from chemical fertilizer. The natural soil nitrate with low δ15N values is not the main cause of nitrate contamination of ground water in the area.
groundwater nitrate pollution unsaturated zone Shijiazhuang City.
Liu Shufen Chang Yongsheng Guo Yonghai Lu Chuanhe
Beijing Research Institute of Uranium Geology, Beijing 100029, China Water Conservancy Bureau of Yuncheng City, Yuncheng 044000, China
国际会议
The IPACES 6th Annual Meeting(“现代地球科学，交流与合作国际学术研讨会暨第六届IPACES学术年会)
武汉
英文
38-41
2007-04-25（万方平台首次上网日期，不代表论文的发表时间）