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桓台县地下水水位动态变化特征及影响因素分析
An Analysis of the Dynamic Change Characteristics and Influencing Factors of Groundwater Level in Huantai County
【摘要】 为探索变化环境下地下水水位变化特征,利用桓台县1982-2018年地下水水位监测数据,基于地下水水位的时空动态变化分析,提出了影响桓台县地下水水位变化的主要因素;利用趋势分析、M-K检验、pearson相关分析和现场试验等方法,分析了地下水位变化趋势及各主要因素的影响。结果表明:近30年地下水位具有显著下降趋势,年际间变化较明显,年均最大值和最小值相差6.4 m;年内呈双分峰型波动,波动幅度在0.43~2.78 m之间;地下水埋深从北向南逐渐变大,东南部形成地下水漏斗区。地下水位变化主要受降水量、开采量和河流补给的影响,西北部和东南部地区地下水水位的主要影响因素分别为降水量和开采量,河流对地下水的补给主要以侧向渗透补给为主。
【Abstract】 In order to explore the characteristics of groundwater level change in Huantai County under the changing environment,based on the groundwater level monitoring data from 1982 to 2018 in Huantai County,this paper analyzes the dynamic changes of groundwater level in the temporal and spatial scales,and determines the main factors affecting the changes of groundwater level. By using the trend analysis,MK test,Pearson correlation analysis and field test,the variation trend of groundwater level and the influence of various influencing factors on groundwater level are analyzed. The results show that the groundwater level has a significant trend of decline in the past 30 years,with a large inter-annual variation,and the average annual difference between the maximum value and minimum value is 6.4 m. During the year,the groundwater level fluctuates in a double peak type,and the variation range is between 0.43~2.78 m. The groundwater depth gradually increases from north to south,and the groundwater funnel is formed in the southeast. The change of groundwater level is mainly affected by precipitation,mining amount and river recharge. Precipitation has a greater impact on groundwater level in northwest,while mining amount has a greater impact on groundwater level in southeast. The main recharge of river to groundwater is lateral infiltration recharge.
【Key words】 groundwater level; dynamic change; influencing factors; groundwater depth; Huantai County;
- 【文献出处】 中国农村水利水电 ,China Rural Water and Hydropower , 编辑部邮箱 ,2022年07期
- 【分类号】P641.2
- 【下载频次】215