Based on internal hydrogeological borehole data in hydrogeological division of Yancheng Coastal Plain and water quality factor monitoring data during 2005~2014, Geographic information science (GIS) and Analysis of Variance (ANOVA) method etc. were applied to research response characteristics of aquifer roof depth changes in time-space dimension for the quality of porous groundwater of confined aquifer III in experiment sample area, the dynamic evolution laws of groundwater quality and propose suggestions on groundwater management and protection in the research area were analyzed. The research result showed that the depth of confined aquifer III in this area mostly went between-118.9m~-85.45meter. Due to hydrogeological conditions of groundwater with different depths and exploitation and utilization differences, there was some correlation between typical water quality factor of groundwater and aquifer depth. Mineralization, total alkalinity and total bacterial count had the strongest correlation strength with the depth (relevancy: 69.67%, 75.76% and 58.09%). The strength of total hardness was at an intermediate level (49.18%). KMnO4 index was little affected by the depth (35.27%). It is also found that the correlation strengths between factors and depth in various depth classification areas were significantly different, indicating different dynamic evolution characteristics.%基于盐城滨海平原水文地质分区内部水文地质钻孔数据及2005~2014年水质因子监测数据，综合运用GIS及ANOVA等方法，研究了实验样区第III承压含水层孔隙地下水的水质在时空维度上对含水层顶板埋深变化的响应特征，分析了地下水质动态演变规律，并对研究区地下水管理与保护提出了建议.研究结果表明：该区第III承压含水层顶板埋深大多位于-118.9m ~-85.45m之间；由于不同埋深的地下水所处的水文地质条件及开采利用状态差异，地下水典型水质因子含量与含水层顶板埋深因素之间呈现出一定相关性：矿化度、总碱度和细菌总数3种因子与埋深的关联强度最高(相关度分别为69.67%、75.76%和58.09%)，总硬度因子的关联强度处于中等水平(49.18%)；高锰酸钾指数受埋深影响较小(35.27%)；同时还发现，在不同埋深分级区间各因子与埋深的关联强度差异明显，表现出不同的动态演变特征.
展开▼
