济南北跨地区浅层地下水水化学多元统计分析

Multivariate Statistical Analysis on Hydrochemistry of Shallow Groundwater in Northern Jinan City

摘要:

根据浅层地下水的水流特征和人类活动影响，将研究区进行了水文地质单元分区，应用因子分析法对各分区浅层地下水水化学特征进行研究。结果表明：黄河沿岸（Ⅰ区）浅层孔隙水形成过程中经历了蒸发浓缩作用、混合作用和溶滤作用，以蒸发浓缩作用为主；径流条件差的引黄灌溉区（Ⅱ区），浅层孔隙水形成过程中经历了混合作用和蒸发浓缩作用，以混合作用为主；径流条件较好的地下水开采区（Ⅲ区），浅层孔隙水形成过程中经历了蒸发浓缩作用和溶滤作用，以蒸发浓缩作用为主。

Abstract:

According to flow characteristics of shallow groundwater and human activities influence, hydrogeological unit partition has been carried out. By using factor analysis,chemical characteristics of shallow pore water in each partition has been studied. It is showed that shallow pore water along Yellow River area (Ⅰ area) experiences evaporation concentration, mixing action and leached role, and evaporation concentration is main action. In Yellow River irrigated area (Ⅱ area) , runoff conditions are poor, shallow pore water experiences mixing action and evaporation concentration, mixing is main action. In groundwater mining area(Ⅲ area), runoff conditions are good, shallow pore water experiences evaporation concentration, and leached role, evaporation concentration is main action.