河北省广平县浅层地下水水位控制指标研究

Research on the Control Index of Shallow Groundwater Level in Guangping County of Hebei Province

为建立广平县浅层地下水水量水位控制指标体系,首先分析了广平县浅层地下水水位变化特征,运用多元回归分析法确定了浅层地下水水位的主要影响因素为开采量,其次为降水量,井灌回归补给量和渠灌田间入渗补给量对浅层地下水水位无显著影响,进而运用多元线性回归分析法及ArcGIS软件中的反距离加权法(IDW)得到2030年不同水文年各代表性监测井、各乡镇地下水位埋深下限控制指标,最终建立了浅层地下水水量水位控制指标体系,结果表明:至2030年,广平县所有乡镇均变为地下水水位基本稳定区或水位上升区,2030年丰平枯不同水文年整个广平县浅层地下水位埋深下限控制指标在31.69~34.66 m。

In order to establish the shallow groundwater level control index system in Guangping County,firstly the characteristics of the shallow groundwater level change in Guangping County were analyzed,and then the multiple regression analysis method was used to determine that the main influencing factor of the shallow groundwater level is the extraction volume,followed by Precipitation.Well irrigation return replenishment and canal irrigation field infiltration replenishment have no significant impact on shallow groundwater level,and control the rate of shallow groundwater drop and shallow groundwater extraction.Through the multiple linear regression analysis method and the inverse distance weighting method(IDW)in ArcGIS software,the control indicators for the lower limit of the groundwater level of each representative monitoring well,each township in different hydrological years in 2030 were obtained,thereby establishing a shallow layer Groundwater level control index system.The results show that by 2030,all townships in Guangping County will become areas where groundwater level is basically stable or water level rises.In 2030,the shallow groundwater level of Guangping County will be buried in different hydrological years.The lower limit control index is 31.69-34.66 m.