干旱区研究

干旱区研究 ›› 2023, Vol. 40 ›› Issue (1): 51-58.doi: 10.13866/j.azr.2023.01.06 cstr: 32277.14.AZR.20230106

• 水土资源 • 上一篇    下一篇

沙地潜水含水层不同时间段抽水降深的差异性分析

周生辉1(),刘廷玺1,2,3(),段利民1,2,3,冀如1,刘小勇4   

  1. 1.内蒙古农业大学水利与土木建筑工程学院，内蒙古 呼和浩特 010018
    2.内蒙古自治区水资源保护与利用重点实验室，内蒙古 呼和浩特 010018
    3.黄河流域内蒙段水资源与水环境综合治理协同创新中心，内蒙古 呼和浩特 010018
    4.乌兰察布市水文勘测局，内蒙古 乌兰察布 012000
  • 收稿日期:2022-02-16 修回日期:2022-07-06 出版日期:2023-01-15 发布日期:2023-02-24
  • 作者简介:周生辉（1996-），男，硕士研究生，主要从事水文地质及水文循环方面的研究. E-mail: 3035452884@qq.com
  • 基金资助:
    国家重点研发计划(2018YFC0406400);内蒙古自治区科技重大专项(2019ZD0009);教育部创新团队发展计划(IRT-17R60);科技部重点领域科技创新团队(2015RA4013);内蒙古自治区草原英才产业创新创业人才团队

Analysis of differences in pumping depth in sand diving aquifers over different time periods

ZHOU Shenghui1(),LIU Tingxi1,2,3(),DUAN Limin1,2,3,JI Ru1,LIU Xiaoyong4   

  1. 1. Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot 010018, Inner Mongolia, China
    2. Inner Mongolia Key Laboratory of Water Resource Protection and Utilization, Hohhot 010018, Inner Mongolia, China
    3. Collaborative Innovation Center for Integrated Management of Water Resources and Water Environment in the Inner Mongolia Reaches of the Yellow River, Hohhot 010018, Inner Mongolia China
    4. Ulanqab Hydrology Bureau, Ulanqab 012000, Inner Mongolia, China
  • Received:2022-02-16 Revised:2022-07-06 Published:2023-01-15 Online:2023-02-24

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摘要：

抽水降深过程是计算区域水文地质参数的重要观测资料，为揭示毛乌素沙地海流兔河流域第四系潜水含水层不同时段的水文地质特征，明晰沙地潜水含水层降深差异的主控因子，本文对同一口井不同时间的4次抽水降深差异进行了系统分析。在基于抽水井附近的逐小时监测水位，首次将Bland-Altman法引入了对抽水降深过程间的差异性辨析，并利用配线法和水位恢复法求解了第四系含水层的水文地质参数来进行差异性佐证。最后，本文以流域尺度为研究系统，通过对含水层厚度、水力坡度、地下水储量变化和降水补给分析，辨析了抽水降深差异产生的主要原因。研究结果得到毛乌素沙地海流兔河流域第四系潜水含水层导水系数变化范围为3.00~4.85 m2·h-1，且抽水前降水对包气带的下渗补给是产生抽水降深差异的主控因素。

关键词: 抽水降深, 差异性, 潜水含水层, 水文地质参数

Abstract:

We carried out long-term water level monitoring of a well in the quaternary sandy aquifer of Maowusu Sandy Land in China, selected four pumping processes of this well at different times in 1 year, analyzed the differences in the pumping and depth reduction processes, and systematically analyzed the possible factors of such differences. On the basis of multiple influencing factors, the main controlling factors of the differences in the depth of sandy diving aquifer were clarified, and the hydrogeological characteristics of the fourth-series diving aquifer in the Hailiutu River Basin at different times were effectively revealed. We introduced the Bland-Altman method to this study for the first time and used it to quantitatively analyze the difference between the pumping depth reduction processes. Moreover, we applied the traditional wiring method to solve hydrogeological parameters and the water level restoration method to solve the hydrogeological parameters of the quaternary aquifer for differentiation. Finally, this paper analyzed the main reasons for differences in the pumping depth by evaluating the aquifer thickness, hydraulic slope, groundwater reserves, and precipitation recharge at the watershed scale. Results showed that the variation range of water conductivity coefficient of the quaternary phreatic aquifer in Hailiutu River Basin of Mu Us Sandy Land is 3.00-4.85 m2·h-1 and the infiltration and replenishment of the vadose belt by precipitation before pumping is the main controlling factor for the differences in pumping depth.

Key words: pumping depth, difference, phreatic aquifer, hydrogeological parameter