高级检索

      荆州市沿江浅层地下水水位变化趋势分析

      Analysis of change trend of shallow groundwater level along Changjiang River in Jingzhou City

      • 摘要: 为了研究荆州市沿江浅层地下水水位变化趋势及其对降水、地表水水位变化的响应等,利用Pearson相关性分析、Mann-Kendall趋势检验法分析了研究区内5口地下水监测井、5个雨量站在2017~2024年年末及2018~2024年的监测数据。结果表明:研究区地下水水位存在不显著下降趋势。降水是荆州市沿江浅层地下水水位变化的最主要影响因素,降水对研究区内地下水动态具有很强的控制作用,地下水水位呈季节性变化;长江水位对沿江近岸的监测井地下水水位无明显影响,枯水年份(2019年、2022年)地下水水位随长江水位变化的幅度较小,分别为0.16,-0.05 m,丰水年份(2020年、2021年)地下水水位随长江水位变化的幅度较大,分别为1.03,0.74 m。研究区内5口地下水监测井水位动态变化具有相同趋势,监测站点之间水力联系存在极强、较好和极弱3种。

         

        Abstract: In order to study the change trend of shallow groundwater level along the Changjiang River in Jingzhou City and its response to the change of precipitation and surface water level, Pearson correlation analysis and Mann-Kendall trend test method were used to analyze the monitoring data of five groundwater monitoring wells and five rain measurement stations in the study area from 2017 to end of 2024 and from 2018 to 2024.The results showed that the groundwater level in the study area had a non-significant downward trend.Rainfall was the most influencing factor for the change of shallow groundwater level along the Changjiang River in Jingzhou City, which had a strong control effect on the groundwater level in the monitoring area along the Changjiang River, and three kinds of hydraulic connection between the monitoring stations of groundwater level.The Changjiang River had no obvious effect on the groundwater level of monitoring wells along the Changjiang River, and the groundwater level changed slightly with the Changjiang River water level in the dry year (2019 and 2022), which were 0.16 m, -0.05 m respectively.The groundwater level changed greatly with the Changjiang River water level in the flood year(2020 and 2021), which were 1.03 m, 0.74 m respectively.The dynamic changes of water level in the five groundwater monitoring wells show the same trend, and there were three types of hydraulic connections among the monitoring stations, which was extremely strong, relatively good and extremely weak.

         

      /

      返回文章
      返回