| 阜阳市浅层地下水总硬度近年变化特征 |
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| 引用本文： | 赵晓玲,朱玲玲.阜阳市浅层地下水总硬度近年变化特征[J].地下水,2020(1):46-47,146. |
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| 作者姓名： | 赵晓玲 朱玲玲 |
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| 作者单位： | 安徽省地质环境监测总站 |
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| 摘 要： | 阜阳是安徽省人口最多的市,工农业生产主要取用地下水,总硬度是该市浅层地下水主要超标组分之一。近5年来,该市浅层地下水总硬度平均值呈现缓慢增高的趋势,标准差亦在缓慢增加,近两年总硬度数值间差异明显增大。利用spss软件,分析近年浅层地下水的pH、TDS、总碱度、氯化物与总硬度的相关关系,结果可知:pH、TDS、总碱度、氯化物与总硬度都存在极显著的线性相关关系,其中,仅有pH与总硬度是负相关,其余均为正相关关系,总碱度与总硬度为低度线性相关,TDS、氯化物与总硬度呈中度线性相关。结合阜阳市浅层地下水的埋藏条件、补给来源、监测井的地理位置和地下水开采历史,得出该市浅层地下水总硬度升高主要与人为污染和地下水超采有关,外来的污染物来源主要是农业污染和生活污染。
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| 关 键 词： | 浅层地下水 总硬度 变化特征 |
Study on the change characteristics of the total hardness of shallow groundwater in fuyang city in recent years |
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| ZHAO Xiao-ling,ZHU Ling-ling.Study on the change characteristics of the total hardness of shallow groundwater in fuyang city in recent years[J].Groundwater,2020(1):46-47,146. |
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| Authors: | ZHAO Xiao-ling ZHU Ling-ling |
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| Institution: | (Anhui Institute Of Geo-Environment Monitoring,Hefei,Anhui 230001,China) |
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| Abstract: | Fuyang is the most populous city in Anhui Province. Industrial and agricultural production mainly uses groundwater. The total hardness is one of the major super-standard components of shallow groundwater in the city. In the past five years,the average hardness of shallow groundwater in the city has shown a trend of increasing slowly,and the standard deviation is also slowly increasing. The difference in total hardness values in the past two years has increased significantly. Using spss software to analyze the correlation between pH,TDS,total alkalinity,chloride and total hardness of shallow groundwater in recent years,It is concluded that there is a very significant linear correlation between pH,TDS,total alkalinity,chloride and total hardness,In which only pH and total hardness are negatively correlated,the rest are positive correlation,the total alkalinity and total hardness are low linear correlation,while TDS and chloride are moderately linearly correlated with total hardness. Combined with the burial conditions of shallow groundwater in Fuyang City,the source of recharge,the geographical location of monitoring wells and the history of groundwater exploitation,it is concluded that the increase of the total hardness of shallow groundwater in the city is mainly related to man-made pollution and over-exploitation of groundwater. The sources of external pollutants are mainly agricultural pollution and domestic pollution. |
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| Keywords: | shallow groundwater total hardness Change characteristics |
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