Conceptualization and assessment of groundwater-seawater interactions on bedrock islands
文献类型：期刊论文
| 作者 | Gong, Rong2,3,4,5,6; Han, Dongmei3,6; Xiao, Yi3,6; Song, Xianfang3,6; Wang, Wei1; Cao, Yanling1 |
| 刊名 | JOURNAL OF HYDROLOGY
 |
| 出版日期 | 2025-07-01 |
| 卷号 | 655页码:132886 |
| 关键词 | Groundwater-seawater interactions Bedrock islands Nitrate-nitrogen Chloride Groundwater management |
| ISSN号 | 0022-1694 |
| DOI | 10.1016/j.jhydrol.2025.132886 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Groundwater and seawater interactions (GSIs) in coastal areas are significantly influenced by climate change and anthropogenic activities. However, few studies have focused on GSIs on a bedrock island scale. Compiled literature data from global investigations shows that over 68 % of investigated bedrock islands and coasts worldwide have been seriously threatened by groundwater salinization and NO3-N contamination. This study investigates the Changshan Islands in Shandong, China. Utilizing hydrogeological data, historical rainfall, longterm groundwater levels (2010-2021), and multi-period hydrochemical data (2015-2021) to analyze groundwater dynamics and hydrochemical processes. Results reveal severe NO3-N contamination in groundwater, with concentrations peaking at 40 mg/L, primarily due to domestic wastewater discharge and tourism activities. Excessive groundwater extraction exacerbates NO3-N migration into deeper aquifers. Seawater intrusion (SWI) and submarine groundwater discharge (SGD) rates were calculated using Darcy's law, with Cl-and NO3-N fluxes estimated. SWI is more pronounced on the north island, with an average SWI rate of 0.3 m/d. The associated Cl- and NO3-N fluxes are on average 119187.6 and 69.6 mmol/(m2 center dot d), respectively. The southern island, largely free of SWI, has an average SGD rate of 0.2 m/d, with Cl- and NO3-N fluxes averaging 3912.1 and 81.8 mmol/(m2 center dot d), respectively. Key factors influencing GSIs are precipitation, heterogeneous structure, hydrogeological conditions, and groundwater extraction. Based on these findings, we proposed a conceptual model of GSIs for these islands. This study would be helpful to enhance the understanding of island-scale GSIs' patterns and the scientific management of island groundwater resources. |
| URL标识 | 查看原文 |
| WOS关键词 | COASTAL AQUIFERS ; SUBMARINE GROUNDWATER ; INTRUSION ; SALINIZATION ; QUALITY ; AREA ; VULNERABILITY ; MANAGEMENT ; EVOLUTION ; POLLUTION |
| WOS研究方向 | Engineering ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001437429800001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/213309]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 通讯作者 | Han, Dongmei |
| 作者单位 | 1.Shandong Prov Bur Geol & Mineral Resources, Shandong Engn Lab Highgrade Iron Ore Explorat & Ex, Geol Team 1, Jinan 250109, Shandong, Peoples R China 2.Univ Copenhagen, Dept Geosci & Nat Resource Management, DK-1958 Copenhagen, Denmark; 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China; 4.Sino Danish Ctr Educ & Res, Beijing 101408, Peoples R China; 5.Sino Danish Coll Univ, Chinese Acad Sci, Beijing 101408, Peoples R China; 6.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Gong, Rong,Han, Dongmei,Xiao, Yi,et al. Conceptualization and assessment of groundwater-seawater interactions on bedrock islands[J]. JOURNAL OF HYDROLOGY,2025,655:132886. |
| APA | Gong, Rong,Han, Dongmei,Xiao, Yi,Song, Xianfang,Wang, Wei,&Cao, Yanling.(2025).Conceptualization and assessment of groundwater-seawater interactions on bedrock islands.JOURNAL OF HYDROLOGY,655,132886. |
| MLA | Gong, Rong,et al."Conceptualization and assessment of groundwater-seawater interactions on bedrock islands".JOURNAL OF HYDROLOGY 655(2025):132886. |
入库方式： OAI收割
来源：地理科学与资源研究所
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