摘要
为查明河南省新乡市浅层地下水的污染机理,通过现场调查并对地下水、地表水进行采样,测定其氢、氧稳定同位素及水化学成分,对水样的氢氧同位素和水化学组成的空间分布规律进行了分析。结果表明:降水是地下水的主要补给源。太行山区是剥蚀丘陵岗地地下水的主要补给区;中部冲洪积平原地下水受共产主义渠水的影响,二者同位素值较接近;受黄河灌溉回归水的影响,南部冲积平原地下水氢氧同位素值较接近黄河水,是大气降水和黄河水的混合水体。而研究区地下水污染除与地表污水侧渗、污染物通过包气带直接下渗有关,还与不合理开采地下水导致盐分和污染物的迁移有关。
Groundwater and surface water from local rivers are collected for major element analysis and stable isotope（oxygen-18 and deuterium） compositions around Xinxiang in order to address the pollution mechanism of groundwater.The results indicate that precipitation is the main source of groundwater.Taihang area is the main recharge region of the north area.In the middle area,shallow groundwater is affected by Communistic canal water,and they have similar isotope values.In the south area,precipitation and Yellow River water are the main source of groundwater.The polluted water flow,pollutants transfer in the unsaturated zone and the migration of salt and pollutants which resulted in absurd exploitation are the main ways of groundwater pollution.
出处
《中国农村水利水电》
北大核心
2010年第5期1-4,7,共5页
China Rural Water and Hydropower
基金
国家自然科学基金重点项目(40730634)
关键词
氢氧同位素
水化学
污染机理
新乡市
stable isotope
hydrochemical
pollution mechanism
Xinxiang City
