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2025, 11, No.1013 34-42
Study on the driving factors of karst spring restoration in Western Beijing——a case study of the Yu Spring area
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摘要:

泉是水生态健康的重要标志,泉域水均衡动态变化是泉域范围内气候变化、社会发展、水资源开发利用状况等的综合体现。北京市西部地区岩溶大泉——玉泉自1975年以来处于断流状态,由于泉域范围大、岩溶地质构造复杂,如何经济有效地实现岩溶大泉生态修复一直是水文地质领域的关注重点。以玉泉泉域为研究对象,收集了1961—2024年大气降水、地下水水位、地下水开采量、永定河放水量等数据,采用回归分析和小波分析等方法,厘清了地下水开采、永定河放水及大气降水对泉域地下水水位变化的驱动过程,得出了泉域地下水年均水位变化趋势方程,分离了年内最高水位值与年内最低水位值,以现状地下水开采量、永定河放水量以及多年平均降水量为前置条件,预测并绘制了2025—2028年地下水年均水位、年内最高水位及年内最低水位图,结果显示玉泉有可能在2026年汛期过后出现间歇性复涌,2027年汛期后泉水可能实现持续性涌流。

Abstract:

Springs serve as vital indicators of water ecological health, and the dynamic changes in water balance within spring areas comprehensively reflect climate change, social development, and the status of water resource development and utilization. The karst large spring, Yu Spring, located in Western Beijing, has experienced a cessation of flow since 1975. Due to the extensive area of the spring and the complex karst geological structure, achieving ecological restoration of such karst springs economically and effectively has been a longstanding challenge in the field of hydrogeology. Focusing on the Yu Spring area, this study collected data from 1961 to 2024, including atmospheric precipitation, groundwater levels, groundwater extraction volumes, and discharge volumes of the Yongding River. Utilizing regression analysis and wavelet analysis, the study elucidated the driving processes of groundwater extraction, Yongding River discharge, and atmospheric precipitation on changes in groundwater levels within the spring area. The annual average groundwater level variation trend equation was established,and the highest and lowest water levels within the year were delineated. Based on current groundwater extraction volumes, Yongding River discharge volumes, and multi-year average precipitation, predictions and mappings of annual average groundwater levels, as well as intra-annual maximum and minimum water levels from 2025 to 2028, were conducted. The results indicate that Yu Spring may experience intermittent resurgence after the flood season in 2026, with the potential for sustained flow resumption following the flood season in 2027.

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Basic Information:

DOI:

China Classification Code:P641.134

Citation Information:

[1]王树芳.北京市西部地区岩溶大泉恢复的驱动因素研究——以玉泉泉域为例[J].中国水利,2025,No.1013(11):34-42.

Fund Information:

国家自然科学基金重点项目“地下水水位恢复对水质的影响过程与机理研究”(41831283); 北京市科技计划课题“首都西部地区地下水恢复关键技术研究与示范”(Z221100005222014);北京市科技计划课题“北京西郊地区地下水战略储备关键技术研究与示范”(Z141100003614060)

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