2026年 02期

摘要(Abstract)：

为了探究咸淡水交互带空间分布和动态变化特征，基于莱州湾南岸某典型剖面的地下水实测数据，建立二维变密度地下水数值模型，并采用电阻率层析成像技术进行校正；选用咸淡水交互带宽度、咸水趾和2个典型监测井水头数据作为评价指标，分析不同地下水开采情景、极端气候情景下典型剖面咸淡水交互带动态变化特征。结果表明：在现状条件下，研究区地下水淡水区水位下降，卤水区水位上升，咸水入侵有所减缓并呈向海边后退的趋势；在不同地下水开采情景下，随着开采量的增加，上部交互带宽度逐渐减小，下部交互带宽度快速减小到某一宽度后缓慢增加，咸水趾呈现向内陆入侵的趋势；在极端气候情景下，降雨补给使淡水区水头在初期上升后逐渐下降，而持续干旱导致淡水区水头持续下降，降雨量变化显著影响上部交互带宽度，且极端降雨情景对减缓咸水入侵的作用更为显著。

关键词(KeyWords)：地下水;咸水入侵;咸淡水交互带;数值模拟;电阻率层析成像;莱州湾南岸

基金项目(Foundation): 山东省自然科学基金项目(ZR2024QD169); 济南市“新高校20 条”引进创新团队项目(2021GXRC070); 山东省高等学校青创科技支持计划项目(2023KJ318); 山东省国土空间生态修复中心项目(SDGP370000000202402001402001)

作者(Author):李嘉兴，吴光伟，董玉龙，王晓玮，胡晓农，支传顺，杨帆，赵云平

DOI:10.13349/j.cnki.jdxbn.20250527.003

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