2017-2022年深圳海水入侵变化趋势及影响因素OACSTPCD
Analysis on the change trend and influencing factors of seawater intrusion in Shenzhen from 2017 to 2022
基于深圳市 25个海水入侵监测孔 2017-2022年的监测数据,选用氯离子(Cl-)浓度作为评价指标,分析了深圳市海水入侵的空间分布及变化趋势.研究结果显示,深圳市地下水层埋藏较浅,水位高程变化较为稳定,海水入侵主要分布在宝安沙井片区、南山中心区、盐田保税区及大鹏葵涌河口.研究结合了区域地质、岩土层类型、电阻率物探、降雨量变化和人类活动等要素,分析结果表明,开采地下水是造成海水入侵的重要因素,第四纪断裂是海水入侵的潜在通道,人工填土层区域容易受到海水入侵,降雨量对海水入侵影响的相关性较小.本研究可为深圳市海水入侵防灾减灾管理提供参考.
Based on the data of 25 monitoring wells on seawater intrusion in Shenzhen,from 2017 to 2022,and using Cl-concentration as the evaluation index,the spatial distribution and variation trend of seawater intrusion in Shenzhen were analyzed.Results show that the buried groundwater layer in Shenzhen is relatively shallow,and the change of water level elevation was relatively stable.Seawater intrusion was detected mainly in the Shajing area of Bao'an,the central area of Nanshan,the Yantian Free Trade Zone,and the mouth of the Kwai Chung River in Dapeng.Meanwhile,the factors including regional geology,rock and soil types,resistivity geophysical pro-specting,rainfall changes,and human activities were considered,and results show that the exploitation of ground-water is an important factor causing seawater intrusion.The Quaternary faults are potential channels for seawater intrusion.The land reclamation area is vulnerable to seawater intrusion.The correlation between rainfall and sea-water intrusion is small.This study provided a reference for the disaster prevention of seawater intrusion in Shen-zhen.
陈北辰;李晴岚;王正阳;张洪岩;李文博;程靖清;王晓
中国科学院深圳先进技术研究院,深圳 518055||深圳市自然资源与不动产评估发展研究中心,深圳 518040||中国地质大学(武汉)海洋学院,武汉 430074||中海石油(中国)有限公司深圳分公司,深圳 518054中国科学院深圳先进技术研究院,深圳 518055深圳市自然资源与不动产评估发展研究中心,深圳 518040中国地质大学(武汉)海洋学院,武汉 430074
海洋学
海水入侵地下水氯离子浓度降雨量深圳市
seawater intrusiongroundwaterchloride concentrationrainfallShenzhen
《海洋地质前沿》 2024 (001)
55-64 / 10
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