摘要
北海市滨海含水层地下水具有矿化度和pH值低，水化学类型复杂等特点。钻井地下水化学成分变化可大体上分为稳定型、波动型和恶化型．在北侧海岸带西部，由于海水入侵，地下水中Cl-和Na+（＋K＋）含量明显升高，以Cl－Na型水为主．海岸带以Cl-含量大于50mg/L作为判别海水入侵的标准，最大海水入侵范围已超过3km2。
The groundwater of the beach acquifer at Beihai City has the cbaracteristics of low degree of min eralization and pH value, complex hydrochemical types etc.. The chemical constituents variation of groundwater in boreholes can be essentially classified as:stable, fluctuated and deteriorated types. In the western part of the north beach,owing to the intrusion of seawater, the content of Cl- and Na+ (+ K+ ) evidenily increases and is mainly the Cl-Na type. In the beach area the Cl-content being greater than 50 mg/L is taken as the discriminating standard of seawater intrusion. The maximum range of seawater intru sion exceeds 3 km2.
出处
《勘察科学技术》
1997年第2期9-13,共5页
Site Investigation Science and Technology
