摘要
该文在唐山中西部地区水文地质调查基础上 ,分析了不同水文地质单元的地下水动态特征。从区域性地下水位动态变化趋势看 ,山间盆地和山前倾斜平原区地下水位略呈下降态势 ,年平均下降速率小于 0 4 5m a ,滨海平原区地下水位呈现较快下降趋势 ,年平均下降速率达1 15m a。地下水开采布局不合理和超量开采是水位下降的主要原因。
On the basis of hydrogeological investigation in the middle west of Tangshan city, the characteristics of groundwater regime for different groundwater system are analyzed. Regional groundwater level fluctuation trends show the groundwater level slightly lowers less than 0.45m/a in the intermountainous basins and inclined piedmont plains, but groundwater level descends faster by an average rate of 1.15m/a in the coastal plain. The main reasons of groundwater descending are irrational distribution of groundwater exploitation and over-exploitation.
出处
《勘察科学技术》
2002年第6期16-20,共5页
Site Investigation Science and Technology
基金
国土资源部地质调查项目 (K5 1 1 2 )部分研究成果
关键词
地下水
动态
唐山市
groundwater
regime
Tangshan city
