[1]张鸿,周权平,姜月华,等.基于浅地层剖面仪的鄱阳湖水下沉积地形探测与分析[J].华东地质,2023,44(03):313-322.[doi:10.16788/j.hddz.32-1865/P.2023.03.007]
　ZHANG Hong,ZHOU Quanping,JIANG Yuehua,et al.Sublacustrine sedimentary topography detection and analysis of Poyang Lake based on sub-bottom profiler[J].East China Geology,2023,44(03):313-322.[doi:10.16788/j.hddz.32-1865/P.2023.03.007]
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基于浅地层剖面仪的鄱阳湖水下沉积地形探测与分析()
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《华东地质》[ISSN:2096-1871/CN:32-1865/P]

卷:
44
期数:
2023年03期
页码:
313-322
栏目:
长江经济带资源与环境专辑
出版日期:
2023-09-28

文章信息/Info

Title:
Sublacustrine sedimentary topography detection and analysis of Poyang Lake based on sub-bottom profiler
作者:
张鸿1; 2;  周权平1; 2;  姜月华1; 2;  金阳1; 2; 3;  陈孜1; 2;  贾正阳1; 2;  梅世嘉1; 2
1. 中国地质调查局南京地质调查中心, 江苏 南京 210016;
2. 自然资源部流域生态地质过程重点实验室, 江苏 南京 210016;
3. 中国地质科学院, 北京 100037
Author(s):
ZHANG Hong1; 2;  ZHOU Quanping1; 2;  JIANG Yuehua1; 2;  JIN Yang1; 2; 3;  CHEN Zi1; 2;  JIA Zhengyang1; 2;  MEI Shijia1; 2
1. Nanjing Center, China Geological Survey, Nanjing 210016, Jiangsu, China;
2. Key Laboratory of Watershed Eco-Geological Processes, Ministry of Natural Resources, Nanjing 210016, Jiangsu, China;
3. Chinese Academy of Geological Sciences, Beijing 100037, China
关键词:
鄱阳湖; 浅地层剖面仪; 水下地形; 松散沉积物厚度与体积
Keywords:
Poyang Lake; sub-bottom profiler; sublacustrine topography; thickness and volume of unconsolidated sediments
分类号:
P217P343.3P641.71
DOI:
10.16788/j.hddz.32-1865/P.2023.03.007
摘要:
鄱阳湖是我国重要的淡水和砂石资源提供地,其水下沉积地形现状一直是学术界研究的重点。该文借助浅地层剖面探测手段对鄱阳湖水下地形与沉积特征进行了探测,通过分析32条浅地层剖面测线资料发现,鄱阳湖水深变化幅度为0.16~23.71 m,入江水道与主湖区西北部相对较深;松散沉积物厚度变化范围为0~8.73 m,主湖区中部松散沉积物较厚,估算松散沉积物总体积约3.02 km3。为检验浅地层剖面探测数据的可靠性,2022年9月在主湖区开展了浅钻探测工作。通过与前人的相关研究对比发现,大规模采砂活动能够对鄱阳湖水下地形产生显著影响。该文较全面地揭示了鄱阳湖水下地形现状与沉积特征,得出的结论与建议对相关研究与管理工作具有重要的参考价值。
Abstract:
Poyang Lake is an important freshwater, sand and stone source area in China, where its sublacustrine sedimentary topography has always drawn much attention in academia. This study systematically investigates the underwater topography and sedimentary characteristics of Poyang Lake with sub-bottom profiler. Data analysis of 32 survey lines revealed that the depth of Poyang Lake varies from 0.16 m to 23.71 m, with the water channel into Yangtze River and the northwest part of the main lake area being relatively deeper. The thickness of unconsolidated sediment varies from 0 m to 8.73 m, with thick layers concentrating in the central part of the main lake area, and the estimated volume of the unconsolidated sediments is approximately 3.02 km3. In September 2022, shallow drilling exploration is conducted in the main lake area to verify the reliability of the data from sub-bottom profiler. Comparison with previous studies indicates that large-scale sand mining can significantly impact the bottom topography of Poyang Lake. This study comprehensively reveals the current state of underwater topography and sedimentary characteristics of Poyang Lake, and the conclusion is useful for the relevant research and management.

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备注/Memo

备注/Memo:
收稿日期:2023-4-27;改回日期:2023-6-5。
基金项目:中国地质调查局"长江经济带暨长三角一体化发展区资源环境承载能力监测评价(编号:DD20221728)"项目资助。
作者简介:张鸿,1992生,男,高级工程师,博士,主要从事水文地质工程地质调查研究工作。Email:ZhanghongCGS@163.com。
通讯作者:金阳,1990生,男,工程师,博士研究生,主要从事水文地质工程地质调查研究工作。Email:jinyang@mail.cgs.gov.cn。
更新日期/Last Update: 1900-01-01