地下水监测网优化的总体目标是用最少的投入最大化地获得满足一定精度要求的地下水动态信息。一个高效的监测网,不仅能够提供动态实时的地下水信息,而且可以为地下水环境的科学研究提供可靠来源,同时也是决策者有效管理的辅助工具,故地下水监测网布局的合理与否意义重大。关于地下水监测网的优化问题,主要包括监测密度、监测位置、监测指标以及监测频率的优化,现国内外众多专家学者已提出并尝试了一些定性(如水文地质分析法)和定量(如克里格插值法和信息熵等)的优化方法,取得了诸多成效,但基本上都是针对单一目标的优化,多目标的综合时空分析较少,且各种方法的组合优化不多,使得方法间的优势未充分发挥出来,这些都有待进一步的探索研究。本文目的旨在综合分析比较地下水监测网各种优化方法,且在此基础上,提出了一种多方法融合的多目标优化体系。
The general goal of groundwater monitoring network optimization is to obtain more groundwater dynamic information with a certain precision using the least investment. A highly efficient monitoring network not only provides real-time dynamic information and reliable sources for scientific research in groundwater environment, but also helps policy-makers in making efficient decisions, and therefore a reasonable layout of groundwater monitoring network is of great importance. The optimization of groundwater monitoring network mainly includes network density, monitoring location, monitoring indicators and monitoring frequency. At present, a number of qualitative and quantitative methods have been used and many achievements have been made. These research work basically aimed at single objective optimization, and ignored the issues such as space-time analysis based on multi-objective and combined methods. The purpose for this paper is to analyze and compare the methods for optimizing the groundwater monitoring network, and then to propose a multi-objective optimization system in conbination of several methods.