地下水脆弱性评价研究进展

在分析地下水脆弱性内涵的基础上,评述了常见的地下水脆弱性评价方法以及典型的评价模型,从地下水本质脆弱性、特殊脆弱性以及脆弱性的定量研究方面归纳了地下水脆弱性的研究进展。针对目前地下水脆弱性理论研究中的不足以及评判方法的优劣,建议查明研究区的水文地质背景条件,选用合适的脆弱性评价方法,着力考虑地下水脆弱性评价内容的全面性,即根据生产的需要评价除了潜水含水层以外的半承压含水层以及承压含水层的脆弱性,力求评价的规范化,同时将信息技术融于地下水脆弱性评价当中,在地下水脆弱性评价方面开展深入的研究。期待一种集成工具,收集所需的各类评价参数并将评价工作最终定量化,旨在为地下水资源的可持续利用提供理论依据,同时为地下水风险的评估提供支撑。

Research Progress on Groundwater Vulnerability Assessment

Groundwater vulnerability assessment methods and typical models were reviewed on the basis of analyzing the content of groundwater vulnerability.The research progress of groundwater vulnerability was also concluded from groundwater intrinsic vulnerability,special vulnerability and quantitative research.According to the theoretical study deficiencies of groundwater vulnerability and the pros and cons of evaluation methods,hydrogeology background conditions were suggested to be ascertained and appropriate vulnerability assessing method needed to be selected.The comprehensiveness of groundwater vulnerability evaluation would be taken into account.Namely,in addition to phreatic aquifer,the vulnerability of semi-confined aquifer as well as confined aquifer needed to be assessed in the light of the production necessity,thereby achieving evaluation standardization.Meanwhile,information technology was utilized to assess groundwater vulnerability further.An integration tool is expected to be developed to collect all kinds of evaluation parameters and the quantitative evaluation work will be eventually available,which can provide theoretical basis and technique support for groundwater sustainable utilization and risk assessment.