Abstract: The plain area in Hebei province is an important grain producing area and a densely populated area.However,the over exploitation of groundwater resources has seriously affected the sustainable development of regional economy and society.Based on the data from 2007to 2016in the plain area of Hebei Province,this paper analyzes the characteristics of shallow groundwater depth and storage variables,and identifies the effects of precipitation,extraction and runoff on the groundwater storage variables.The study found that the groundwater depth of shallow groundwater gradually transited to 10-20mfrom the front of the mountain to 2-5mof the coastal sea.During the year,the groundwater level varied from 5-10m in the Piedmont Plain and 1-3min the other plain areas.The characteristics of shallow groundwater storage variables in different plain areas are different,and the storage variables appeared the highest value in 2012and 2016,and the groundwater level rose obviously.Precipitation and storage variables show a significant positive correlation;the runoff and storage variables show a logarithmic relationship,but the correlation is poor;and there is no significant correlation between extraction and storage variables.

Key words: plain area, shallow groundwater, water storage, influencing factors

摘要： 河北省平原区是重要的粮食产区,同时也是人口密集区,区域地下水资源的过度开采,已经严重影响了当地经济社会的可持续发展。本文采用河北省平原区2007～2016年的数据,分析了浅层地下水埋深和蓄水量变化,识别了降水量、开采量和径流量对浅层地下水蓄水量的影响。研究发现,浅层地下水埋深从山前的10～20m,逐步过渡到滨海的2～5m;年内地下水位变幅山前平原区5～10m,其他平原区1～3m。不同平原区浅层地下水蓄水量特征不同,蓄水量在2012和2016两个年度出现了最高值,地下水位回升明显。降水量与蓄水变量表现为较明显的正相关;径流量与蓄水变量呈现对数关系,但相关性差;而开采量与蓄水变量没有明显的相关性。

关键词: 平原区, 浅层地下水, 蓄水量, 影响因素