摘要
针对研究区211眼机井地下水水质调查结果,分析研究区高氟水分布特征、演化规律、水化学特征、高氟水形成的主导条件、影响氟富集的主要因素。结果表明:该区域浅层地下水中F-质量浓度随地下水埋深的增加呈上升趋势;地下水化学类型以HCO3-Na·Mg和HCO3-Na型碱性水为主;主导氟富集的环境条件是强碱化水化学环境,地下水中F-质量浓度与Na+质量浓度呈正相关,F-质量浓度与Ca2+质量浓度和HCO-3质量浓度分别呈负相关关系;除自然因素外,人类频繁活动也影响着水体中氟化物质量浓度的变化。
According to the groundwater quality survey results of 211 wells in the study region, the authors of this article analyzed the distribution characteristics, evolution law, and hydro-chemical characteristics of high fluoride groundwater, and the leading condition of high fluorine water formation, the main factors of influencing the fluorine concentration as well.The results show that fluoride concentrations in the shallow groundwater of the area has a rising trend as the bury of groundwater increases;the main chemical types of groundwater are HCO3-Na? Mg and HCO 3-Na alkaline water; the environmental condition that controls fluoride enrichment is alkali water chemical environment;fluoride concentration in groundwater has positive correlation with Na+concentration,having negative correlation with concentration of Ca 2+and HCO 3; besides the natural factor, frequent human activities also affect the change of fluoride concentration in water .
出处
《水资源保护》
CAS
CSCD
2015年第4期27-31 66,66,共6页
Water Resources Protection
基金
中国国土资源大调查项目(1212010634502)
关键词
豫东平原
地下水
氟化物
分布特征
氟富集
Yudong Plain
groundwater
fluoride
distribution characteristics
fluoride enrichment
