| 莱州湾海底地下水动态及影响机制研究 |
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| 引用本文： | 侯国华,高茂生,郭飞,孔祥淮,赵金明,仇建东,刘森,郑懿珉.莱州湾海底地下水动态及影响机制研究[J].海洋学报,2016,38(5):124-132. |
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| 作者姓名： | 侯国华 高茂生 郭飞 孔祥淮 赵金明 仇建东 刘森 郑懿珉 |
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| 作者单位： | 1.中国地质调查局 青岛海洋地质研究所 国土资源部海洋油气资源和环境地质重点实验室, 山东 青岛 266071;青岛海洋科学与技术国家实验室 海洋地质过程功能实验室, 山东 青岛 266061 |
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| 基金项目： | 国家自然科学基金(41476051,41306063);国家海洋地质保障工程专项(GZH201200505);科技基础性工作专项(2014FY210600)。 |
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| 摘 要： | 地下水监测及数理分析是地下水动态研究的主要方法。但目前海岸带地区多以陆域地下水监测为主,海域部分尤其具有多层含水层系统的海底地下水缺少直接监测数据。本研究通过海域钻孔ZK03与ZK08实时监测不同层位海底地下水动态以及海洋潮汐变化,结合其地层结构和沉积演化背景,分析莱州湾海底地下水动态特征并揭示其影响机制。研究结果表明,莱州湾海底地下水动态具有周期性和分层性特征;全新世含水层与海水关系密切,其海水入侵界面垂向上厚10 m左右。海底地下水分层与沉积地层划分大致相同,其动态特征是在地层结构及沉积演化环境影响下,降水、径流及潮汐驱动不同层深地下水间或地下水与海水间混合作用的结果。本文初步构建了海底地下水分布模式,探讨区域地下水与海水的相互作用关系。莱州湾海底地下水动态研究对于深入分析海(咸)水界面变化机制及探索海底地下水排泄具有推动作用。
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| 关 键 词： | 莱州湾 海底地下水 动态特征 影响机制 |
| 收稿时间： | 6/8/2015 12:00:00 AM |
Research on submarine groundwater dynamics and driving mechanism in the Laizhou Bay |
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| Hou Guohu,Gao Maosheng,Guo Fei,Kong Xianghuai,Zhao Jinming,Qiu Jiandong,Liu Sen and Zheng Yimin.Research on submarine groundwater dynamics and driving mechanism in the Laizhou Bay[J].Acta Oceanologica Sinica (in Chinese),2016,38(5):124-132. |
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| Authors: | Hou Guohu Gao Maosheng Guo Fei Kong Xianghuai Zhao Jinming Qiu Jiandong Liu Sen and Zheng Yimin |
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| Affiliation: | Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, China Geological Survey, Qingdao Institute of Marine Geology, Qingdao 266071, China;Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China,Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, China Geological Survey, Qingdao Institute of Marine Geology, Qingdao 266071, China;Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China,Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, China Geological Survey, Qingdao Institute of Marine Geology, Qingdao 266071, China;School of Geosciences, China University of Petroleum, Qingdao 266555, China,Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, China Geological Survey, Qingdao Institute of Marine Geology, Qingdao 266071, China;Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China,Exploration Institute of Geology and Mineral Resources, Weifang 261021, China,Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, China Geological Survey, Qingdao Institute of Marine Geology, Qingdao 266071, China;Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China,Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, China Geological Survey, Qingdao Institute of Marine Geology, Qingdao 266071, China and Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, China Geological Survey, Qingdao Institute of Marine Geology, Qingdao 266071, China |
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| Abstract: | Groundwater monitoring combined with mathematical analysis is the main method of groundwater dynamics studies. But there is less monitoring data for submarine groundwater than inland groundwater in the most coastal areas. In this study, sea drillings ZK03, ZK08 were designed to real-time monitor dynamics characteristic of submarine groundwater in multi-layers aquifers and ocean tides. Combined with stratum structure and sedimentary evolution setting, the paper analyzed the dynamic characteristics of submarine groundwater in the Laizhou Bay and revealed the driving mechanism. The results showed that submarine groundwater dynamic appeared to be periodic and stratified in the Laizhou Bay, Holocene aquifer were closely associated with the sea, where the vertical thickness of seawater intrusion interface was about 10 m. Submarine groundwater stratification were roughly consistent with sedimentary strata. Controlled by strata structure and sedimentary environment, the mixing process in different aquifer groundwater or between groundwater and seawater drived by precipitation, groundwater runoff and tide was the main driving mechanism of submarine groundwater dynamic. Then the paper constructed a preliminary submarine groundwater distribution pattern to explore the interaction between groundwater and seawater. The study on the dynamics characteristic of submarine groundwater in the Laizhou Bay play a positive role in analyzing saltwater interface change mechanism and exploring the submarine groundwater discharge. |
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| Keywords: | Laizhou Bay submarine groundwater dynamic characteristic driving mechanism |
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