With the exploitation of oil and gas resources in Jingbian County and the construction of energy and chemical in-dustry base in northern Shaanxi,the problem of groundwater environment is becoming more and more prominent.The re-search on the hydrochemical characteristics and water quality evaluation of groundwater can effectively promote the monito-ring and protection of groundwater environment.According to the statistical analysis of the results of groundwater water qual-ity,the water chemical types in the study area are mainly HCO3,HCO3—Mg·Ca,HCO3—Na·Mg and HCO3·SO4 water,and locally exists HCO3·SO4,HCO3·Cl,SO4·Cl,CO3·SO4·HCO3,HCO3·Cl—Na·Ca,Cl·SO4—Na·Mg,HCO3·Cl,HCO3·SO4 ·Cl,SO4,SO4·Cl and Cl water.Statistical analysis,three-line diagram and single index method were used to analyze and e-valuate the hydrochemical characteristics and water quality of groundwater in the area.The grade of groundwater in the northeast and middle part of the area is mainly Ⅰ and Ⅱ with good water quality,while the area near the central Luhe River valley is mainly Ⅳ and Ⅴ with poor water quality.
关键词
靖边县/地下水/水化学特征/水质评价/时空分布
Key words
Jingbian county/groundwater/hydrochemical characteristics/water quality evaluation/spatiotemporal distribution
维普
万方数据