Proposed APLIE method for groundwater vulnerability assessment in karst-phreatic aquifer, Shandong Province, China: a case study
Proposed APLIE method for groundwater vulnerability assessment in karst-phreatic aquifer, Shandong Province, China: a case study
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提出的 APLIE 方法用于中国山东省岩溶潜水层地下水脆弱性评估：案例研究
DOI：
10.1007/s12665-015-4903-8
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发表时间：
2016-01-01
影响因子：
2.8
通讯作者：
Liu, Shaohua
中科院分区：
文献类型：
--
作者：
Guo, Yongli;Zhai, Yuanzheng;Liu, Shaohua
地下水脆弱性评价已成为划分地下水污染防治区域的有效工具。在ARCGIS（R）支持下，结合中国北方岩溶潜水的特点，提出了基于DRASTIC、PI、COP、欧式等方法的APLIE方法，并应用于山东省大武水源地地下水脆弱性评价。选取丰水度（A）、保护层（P）、土地利用类型（L）、降水入渗量（I）和地下水开采量（E）等指标，构建了表征水文地质环境地质背景和评价含水层脆弱性的指标体系。根据指标的相对重要性，采用层次分析法对新指标体系的权重进行了重新分配。评价结果表明，与PI法和COP法相比，APLIE法编制的地下水脆弱性图更符合大武水源地水文地质和环境地质现状。研究区氨氮和电导率的超标分区验证了地下水脆弱性评价结果的可靠性。基于ARCGIS（R）的空间平台，按自然间断划分脆弱性分区。综合脆弱性图显示，极高和高脆弱性分区的形成原因分别为降水入渗量最大或较大（I）、保护性覆盖最差或较差（P）、土地利用类型最复杂（L）、水资源丰度差（A）和地下水超采（E）。敏感性分析表明，降水入渗量（I）是影响地下水脆弱性的最敏感因子。总之，APLIE方法可以在现有水文地质和环境地质资料的基础上，对研究区岩溶潜水脆弱性进行评价。因此，地下水脆弱性制图是一个有前途的工具，合理的地下水资源管理和土地利用规划，这有助于人类生存的发展和地下水的可持续发展。
Groundwater vulnerability assessment has become a useful tool to delineate areas for the prevention and control of groundwater pollution. The paper proposed the APLIE method by combining the DRASTIC, PI, COP, European approach with the characteristics of karstphreatic aquifer in North China in the help of ARCGIS (R), which was used to assess the groundwater vulnerability of Dawu water source, Shandong Province, China. Water abundance (A), protective cover (P), types of land use (L), infiltration amount of precipitation (I) and groundwater exploitation (E) were picked up to compose the index system for characterizing the hydrogeology and environmental geology setting and evaluating the aquifer vulnerability. Weights of new index system were reassigned using the analytic hierarchy process method based on the relative importance of indexes. The assessment results indicated that groundwater vulnerability mapping with APLIE method is in better agreement with the current hydrogeological and environment geological understanding of Dawu water source area compared with the results obtained from PI and COP methods. And the exceeding standard subareas of ammonia nitrogen (NH4-N) and electric conductivity in the study area proved the reliability of groundwater vulnerability results. Subareas of vulnerability were portioned by natural breaks based on the spatial platform of ARCGIS (R). The integrated vulnerability map showed that the very high and high vulnerability subareas were formed for reasons of highest or higher infiltration amount of precipitation (I), worst or worse protective cover (P), most complex type of land use (L), poor water abundance (A) and over groundwater exploitation (E). Sensitivity analyses showed that infiltration amount of precipitation (I) is the most sensitive factor affecting groundwater vulnerability in the case study. In short, APLIE method was applicable to assess the karst-phreatic vulnerability in the study area with readily available hydrogeological and environment geological data. Hence, the groundwater vulnerability mapping is a promising tool for sensible groundwater resource management and land use planning, which contributes to the development of human survival and sustainable development of groundwater.