Article(id=1223193059433759598, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223193053830169317, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20220674, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1646582400000, receivedDateStr=2022-03-07, revisedDate=1651161600000, revisedDateStr=2022-04-29, acceptedDate=null, acceptedDateStr=null, onlineDate=1769561551196, onlineDateStr=2026-01-28, pubDate=1674576000000, pubDateStr=2023-01-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769561551196, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769561551196, creator=13701087609, updateTime=1769561551196, updator=13701087609, issue=Issue{id=1223193053830169317, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='1', pageStart='1', pageEnd='220', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769561549861, creator=13701087609, updateTime=1769567790701, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223219229885857794, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223193053830169317, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223219229885857795, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223193053830169317, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=26, endPage=29, ext={EN=ArticleExt(id=1223193061665128465, articleId=1223193059433759598, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Adjustment Characteristics and Response of the Shoals in the Bar Area of the Yangtze River Estuary, columnId=1222925279849341011, journalTitle=Water Resources and Power, columnName=HYDROLOGY, WATER RESOURCES AND ENVIRONMENT, runingTitle=null, highlight=null, articleAbstract=

In order to study the adjustment characteristics and response of the important shoals in the bar area of the Yangtze River estuary under the influence of sediment discharge decreasing and human activities, this article took the Hengsha shoal, the Jiuduansha shoal and the eastern Nanhui beach as examples. The measured hydrological and topographic data were used to investigate the morphological adjustment of the shoals and the response to changed environment. The results show that in recent years, the two-dimensional geomorphology of the shoals were shrank in the bar area of the Yangtze River estuary, and the tail of the shoals stop progradation in general. The Hengsha shoal and Jiuduansha shoal had different degrees of tidal creeks development; Empirical relationships were developed between the areas of the Hengsha shoal and the previous seven-year average fluvial erosion intensity during flood seasons. This relationship can be used to reflect the change tendency of shoal’s area with the altered flow and sediment regime; The estuarine regulation project can restrain some part of the shoal’s erosion, which was caused by the variation of the flow and sediment conditions. However, the estuarine regulation project may have a slow and long-term cumulative impact on the surrounding regions.

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为研究长江口拦门沙段重要滩涂对水沙条件改变及人类活动的响应机制,以横沙浅滩、九段沙及南汇东滩为例,分析了拦门沙段重要滩涂的平面形态调整特点及其对环境因素变化的响应过程,并建立了代表滩涂面积与汛期水沙条件间的经验关系。结果表明,横沙浅滩、九段沙及南汇东滩近年来滩涂平面形态呈萎缩态势、沙尾总体滞涨,且横沙浅滩及九段沙有不同程度的串沟发育现象;横沙浅滩面积与前7年平均的汛期水流冲刷强度具有良好的幂函数关系,反映了浅滩面积随水沙条件变化的滞后响应过程;河口治理工程对滩涂局部的守护能较快抑制水沙条件改变所引起的冲刷,但其对周边区域可能产生缓慢、长期的累积影响。

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李溢汶(1994-),男,工程师,研究方向为河口海岸动力学,E-mail:

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李溢汶(1994-),男,工程师,研究方向为河口海岸动力学,E-mail:

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李溢汶(1994-),男,工程师,研究方向为河口海岸动力学,E-mail:

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长江口拦门沙段滩涂形态调整及冲淤响应机制
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李溢汶 , 张诗媛
水电能源科学 | 水文水资源与环境 2023,41(1): 26-29
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水电能源科学 | 水文水资源与环境 2023, 41(1): 26-29
长江口拦门沙段滩涂形态调整及冲淤响应机制
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李溢汶 , 张诗媛
作者信息
  • 上海勘测设计研究院有限公司,上海 200434
  • 李溢汶(1994-),男,工程师,研究方向为河口海岸动力学,E-mail:

Adjustment Characteristics and Response of the Shoals in the Bar Area of the Yangtze River Estuary
Yi-wen LI , Shi-yuan ZHANG
Affiliations
  • Shanghai Investigation, Design & Research Institute Co, Ltd, Shanghai 200434, China
出版时间: 2023-01-25 doi: 10.20040/j.cnki.1000-7709.2023.20220674
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为研究长江口拦门沙段重要滩涂对水沙条件改变及人类活动的响应机制,以横沙浅滩、九段沙及南汇东滩为例,分析了拦门沙段重要滩涂的平面形态调整特点及其对环境因素变化的响应过程,并建立了代表滩涂面积与汛期水沙条件间的经验关系。结果表明,横沙浅滩、九段沙及南汇东滩近年来滩涂平面形态呈萎缩态势、沙尾总体滞涨,且横沙浅滩及九段沙有不同程度的串沟发育现象;横沙浅滩面积与前7年平均的汛期水流冲刷强度具有良好的幂函数关系,反映了浅滩面积随水沙条件变化的滞后响应过程;河口治理工程对滩涂局部的守护能较快抑制水沙条件改变所引起的冲刷,但其对周边区域可能产生缓慢、长期的累积影响。

浅滩演变  /  长江口  /  水沙条件  /  冲淤响应  /  工程影响

In order to study the adjustment characteristics and response of the important shoals in the bar area of the Yangtze River estuary under the influence of sediment discharge decreasing and human activities, this article took the Hengsha shoal, the Jiuduansha shoal and the eastern Nanhui beach as examples. The measured hydrological and topographic data were used to investigate the morphological adjustment of the shoals and the response to changed environment. The results show that in recent years, the two-dimensional geomorphology of the shoals were shrank in the bar area of the Yangtze River estuary, and the tail of the shoals stop progradation in general. The Hengsha shoal and Jiuduansha shoal had different degrees of tidal creeks development; Empirical relationships were developed between the areas of the Hengsha shoal and the previous seven-year average fluvial erosion intensity during flood seasons. This relationship can be used to reflect the change tendency of shoal’s area with the altered flow and sediment regime; The estuarine regulation project can restrain some part of the shoal’s erosion, which was caused by the variation of the flow and sediment conditions. However, the estuarine regulation project may have a slow and long-term cumulative impact on the surrounding regions.

shoal evolution  /  Yangtze River estuary  /  flow and sediment conditions  /  erosion and siltation response  /  project impact
李溢汶, 张诗媛. 长江口拦门沙段滩涂形态调整及冲淤响应机制. 水电能源科学, 2023 , 41 (1) : 26 -29 . DOI: 10.20040/j.cnki.1000-7709.2023.20220674
Yi-wen LI, Shi-yuan ZHANG. Adjustment Characteristics and Response of the Shoals in the Bar Area of the Yangtze River Estuary[J]. Water Resources and Power, 2023 , 41 (1) : 26 -29 . DOI: 10.20040/j.cnki.1000-7709.2023.20220674
  • 国家重点研发计划政府间国际科技创新合作项目(2022YFE0117500)
  • 上海市科学技术委员会科研计划项目(21DZ1201700)
2023年第41卷第1期
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doi: 10.20040/j.cnki.1000-7709.2023.20220674
  • 接收时间:2022-03-07
  • 首发时间:2026-01-28
  • 出版时间:2023-01-25
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  • 收稿日期:2022-03-07
  • 修回日期:2022-04-29
基金
国家重点研发计划政府间国际科技创新合作项目(2022YFE0117500)
上海市科学技术委员会科研计划项目(21DZ1201700)
作者信息
    上海勘测设计研究院有限公司,上海 200434
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2种不同金属材料的力学参数

Family
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Number of
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种数
Number of
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种数
Number of
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Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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