山西省盆地2006—2010年地下水动态分析

Analysis of Groundwater Dynamic During the Period of 2006-2010 in Shanxi Province Basins

根据山西省水资源短缺、地下水超采严重的现状,分析了影响地下水变化的因素,采用2006—2010年5个盆地222个测井地下水埋深(水位)资料,复核2004年山西省第二次地下水资源调查评价之后的地下水变化,重点分析了地下水埋深变化、发生水位下降的区域及对局部地下水流向的改变。结果表明:2006—2010年山西省盆地内地下水位总体呈下降趋势,埋深增大,超采区局部有所缓解;各盆地地下水埋深季节性差异明显,不具有一致性;大同、临汾、长治盆地分别有85%、71%、90%的测井地下水埋深增加,太原盆地地下水埋深存在剧烈变化的测点;盆地地下水流向没有发生根本性改变。

Based on the current status of water shortafe and the serious over exploitation of groundwater in Shanxi Province,this paper analyzed the factors that influencinf groundwater chanfes. Adoptinf the data of groundwater depth/level of 222 observed wells which distributed in 5 basins from 2006 to 2010,this paper checked the groundwater variation after the second evaluation of groundwater resources of Shanxi Province,especially the chanfes of groundwater depth,the location of groundwater level decrease and the chanfes of flow direction. The results show that the groundwater level is declined and the buried depth is increased overall from 2006 to 2010 in the basins,while a few of overdraft areas are improved;the seasonal groundwater depths are freat different and are not consistent in different basins;there are 85%,71% and 90% of monitorinf wells where groundwater buried depth increases in Datonf,Linfen and Chanfzhi basins respectively,while there exists drastic chanfes of groundwater buried depth in Taiyuan basin;the groundwater flow has not been chanfed thoroufhly in the basins.