青藏高原东部典型构造岩溶地下水补给来源、模式及开发利用潜力-水环专刊
作者:
作者单位:

1.中国地质科学院水文地质环境地质研究所;2.四川省地质矿产勘查开发局水文地质工程地质中心;3.四川省核工业地质调查院;4.西北大学地质学系大陆动力学国家重点实验室

作者简介:

通讯作者:

中图分类号:

基金项目:

国家重点基础研究发展计划(2021YFB2301300);中国地质调查局地质调查项目(DD20221812,20190505)


Recharge source, mode and development potential of typical tectonic karst groundwater in the eastern Qinghai-Xizang Plateau
Author:
Affiliation:

1.Institute of hydrogeology and environmental geology, CAGS;2.Chengdu Center of Hydrogeology and Engineering Geology, SBGEEMR;3.Sichuan Institute of Uranium Geological Survey;4.Department of Geology, State Key Laboratory of Continental Dynamics, Northwest University

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    【研究目的】青藏高原东部分布多处构造岩溶发育区,岩溶水文地质结构复杂,补给来源多样、水量丰富。开展岩溶水补给源的分析研究,总结高原构造岩溶循环规律,对指导岩溶水资源开发利用、生态保护和防灾减灾具有重要意义。【研究方法】本文在现场调查、流量统测、水化学和稳定同位素分析的基础上,分析了青藏高原东部典型岩溶区地下水补给来源,探讨了补给来源和补给过程的影响因素,构建了构造岩溶地下水补给模式,并提出了开发利用建议。【研究结果】结果表明,青藏高原东部典型岩溶大泉主要补给源是大气降水,通过裂隙溶隙高位直接补给型、高位湖泊持续补给型、汇水洼地持续渗漏补给型、河水渗漏补给型等4种模式得到补给。【结论】存在补给模式差异的原因在于青藏高原东部长期经受内外动力耦合作用,其中内动力控制因素包括岩溶形成演化历史、地质构造和岩性组合;外动力控制因素主要包括气象、地形地貌和冰川运动。根据岩溶大泉水质和水量特征,提出3种开发利用方式:第一种为水质为Ⅰ~Ⅲ类水的岩溶泉,可直接扩大开发利用程度,第二种为微咸水,可与其他水源混合后适当开发利用,第三种为咸水,可适当改造作为旅游开发使用。

    Abstract:

    Abstract:【Objective】 There are many tectonic karst areas in the east of Qinghai-Xizang Plateau, with complex karst hydrogeological structure, diverse recharge sources and abundant groundwater. Conducting the analysis and research of recharge sources and summarize the plateau tectonic karst cycle law is of great significance for guiding the development and utilization of karst water resources, ecological protection and disaster prevention and reduction.【Methods】 Based on field investigation, flow measurement, hydrochemistry and stable isotope analysis, this paper analyzes the groundwater recharge sources in typical karst areas in the east of Qinghai-Xizang Plateau, the influencing factors of recharge sources and recharge progress were discussed, and suggestions of development and utilization were put forward. 【Results】 The results show that the main recharge source of the main karst springs in the eastern Qinghai-Xizang Plateau is atmospheric precipitation. Four recharge modes are established, including direct recharge through fissure in high-level, continuous recharge by high-level lake, continuous seepage recharge in catchment depression, river seepage recharge. 【Conclusion】 The reason for the difference of recharge modes is that the eastern Qinghai Xizang Plateau has experienced internal and external dynamic coupling for a long time, in which the internal dynamic control factors are karst formation and evolution history, geological structure and lithologic combination; The external dynamic control factors mainly include meteorology, landform and glacier movement. According to the characteristics of water quality and quantity of karst spring, three development and utilization modes are put forward: the first is karst spring with water quality of class I ~ III, which can directly expand the degree of development and utilization, the second is brackish water, which can be properly developed and utilized after mixing with other water, and the third is salt water, which can be properly transformed and used for tourism development.

    参考文献
    相似文献
    引证文献
引用本文
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2022-04-16
  • 最后修改日期:2022-06-02
  • 录用日期:2022-08-20
  • 在线发布日期: 2023-02-16
  • 出版日期:
温馨提示:建议您使用Chrome、火狐、IE最新版本 ,当您的浏览器版本过低,可能会影响部分功能正常使用。
关闭