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- W2370976604 abstract "In order to evaluate the groundwater quality of Yongding River upstream mountain basin and to discuss the characteristics of its distribution by the view of hydrochemistry,a total of 65 groundwater samples,collected within YanQing basin in the dry period of 2008 according to the geological and hydrogeololgical condition of Yanqing basin,were classify shallow,middle and deep groundwater respectively.Based on the data,the groundwater quality is evaluated by the method of F value.The mean and variance of main chemical constituens of groundwater samples were presented..Also,the relationship between the depth of the samples and the concentration of TDS.Ca~(2+),Cl~-,NO~(3-),pH,EC,hardness were analysed.The results show that most groundwater belong to Alkaline water.From shallow to middle,and then to deep,the quality of groundwater in Beijing is getting better.In the horizontal,from the fanhead area to middle area and then to the edge of the fan,groundwater become worse.The worst groundwater samples,i.e.V class of groundwater have been appeared in deep groundwater aquifer.At the fanhead area,the consternation of groundwater is low,the Layered characteristics is not very obvious,the watertype is HCO_3-CaMg mainly.At the middle area of the basin,the consternation of Na~+ and C~1- become higher,HCO_3-CaNaMg water appear,the difference of different aquifers is becoming obvious.The groundwater at the edge of the fan appeared complex relatively,several samples were HCO,- Na·Mg·Ca and HCO_3·SO_4-Na·Ca·Mg,this results is identical with the Characteristics of the multi-source input on the other hand,this reflect the influence of human activities intensity enhancement." @default.
- W2370976604 created "2016-06-24" @default.
- W2370976604 creator A5031181958 @default.
- W2370976604 date "2014-01-01" @default.
- W2370976604 modified "2023-09-25" @default.
- W2370976604 title "Assessment of groundwater quality and its chemical characteristics analysis in Yongding River mountain basin" @default.
- W2370976604 hasPublicationYear "2014" @default.
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