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    马剑飞, 李向全, 张春潮, 付昌昌, 谢小国, 王晓刚, 李欣泽, 张登飞, 白占学, 王振兴. 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[J]. 中国地质.
    引用本文: 马剑飞, 李向全, 张春潮, 付昌昌, 谢小国, 王晓刚, 李欣泽, 张登飞, 白占学, 王振兴. 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[J]. 中国地质.
    MA Jianfei, LI Xiangquan, ZHANG Chunchao, FU Changchang, XIE Xiaoguo, WANG Xiaogang, LI Xinze, ZHANG Dengfei, BAI Zhanxue, WANG Zhenxing. Recharge source, mode and development potential of typical tectonic karst groundwater in the eastern QinghaiXizang Plateau[J]. GEOLOGY IN CHINA.
    Citation: MA Jianfei, LI Xiangquan, ZHANG Chunchao, FU Changchang, XIE Xiaoguo, WANG Xiaogang, LI Xinze, ZHANG Dengfei, BAI Zhanxue, WANG Zhenxing. Recharge source, mode and development potential of typical tectonic karst groundwater in the eastern QinghaiXizang Plateau[J]. GEOLOGY IN CHINA.

    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

    Recharge source, mode and development potential of typical tectonic karst groundwater in the eastern QinghaiXizang Plateau

    • 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: 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.

       

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