Hydrochemical characteristics and formation mechanism of spring water in Laiwu,Shandong Province
Hydrochemical characteristics of spring are summarized and analyzed its formation mechanism using mathematical statistics,correlation analysis,Piper trigram,Gibbs chart and ion ratio analysis according to hydrochemistry results of spring water survey project that is conducted in study area in September 2021.The results show that spring is weakly alkaline,which dominant cation and dominant anion is Ca2+,HCO3-respectively.TDS of spring ranges from 152.75 mg·L-1to 982.64 mg·L-1 with average of 423.15 mg·L-1.Hydrochemical types of spring are mainly HCO3-Ca,HCO3·SO4-Ca,HCO3-Ca·Mg while other type distributes locally.Ion sources of spring is water-rock interaction primarily including dissolution of carbonates and silicates.In addition,spring is also affected by anthropogenic activities,especially nitrates from agricultural activities.This research results can provide scientific and technical guidance for spring protection and rational planning and utilization in Laiwu area.
springhydrochemical characteristicsformation mechanismLaiwu area
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