三峡水库对长江河口北支咸潮倒灌影响探讨

唐建华; 赵升伟; 刘玮祎; 陶静; 缪世强

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三峡水库对长江河口北支咸潮倒灌影响探讨

唐建华, 赵升伟, 刘玮祎, 陶静, 缪世强

文章导航 > 水科学进展 > 2011 > 22(4): 554-560

唐建华, 赵升伟, 刘玮祎, 陶静, 缪世强. 三峡水库对长江河口北支咸潮倒灌影响探讨[J]. 水科学进展, 2011, 22(4): 554-560.

引用本文:

唐建华, 赵升伟, 刘玮祎, 陶静, 缪世强. 三峡水库对长江河口北支咸潮倒灌影响探讨[J]. 水科学进展, 2011, 22(4): 554-560.

TANG Jian-hua, ZHAO Sheng-wei, LIU Wei-yi, TAO Jing, MIAO Shi-qiang. Influences of Three Gorges Reservoir on salt water intrusion from the north branch to the south branch of the Yangtze River estuary[J]. Advances in Water Science, 2011, 22(4): 554-560.

Citation:

三峡水库对长江河口北支咸潮倒灌影响探讨

长江勘测规划设计研究院上海分院上海 200439

基金项目: 上海市科学技术委员会重大研究资助项目(08231200100);长江勘测规划设计研究院科研与技术创新资助项目(CX200830)

详细信息

作者简介:
唐建华(1981- ),男,湖北广水人,硕士,工程师,主要从事河口海岸水资源、水动力等的研究.E-mail:jianhuatang2004@126.com

中图分类号: P343.5;TV211.1

Influences of Three Gorges Reservoir on salt water intrusion from the north branch to the south branch of the Yangtze River estuary

Changjiang Institute of Survey, Planning, Design and Research, Shanghai Branch, Shanghai 200439, China

Funds: The study is financially supported by the Basic Research Program of Shanghai Science and Technology Commission(No.08231200100)

摘要: 为了解三峡水库的运行对长江河口北支咸潮倒灌的影响,对三峡水库初步运行前后北支咸潮倒灌的变化进行了分析.结果表明:三峡水库运行后,受水库下泄水量变化影响,北支咸潮倒灌时间提前,10~11月咸潮倒灌强度增加,12月至次年4月倒灌强度减弱,咸潮倒灌强度的降幅小于增幅;在咸潮倒灌最为严重和长江口淡水利用最为重要的1~4月,水库的实际运行所引起的北支咸潮倒灌减弱的幅度并不大;三峡水库的实际运行使得北支咸潮倒灌的强度在各月重新分配,但对一年中整个咸潮期咸潮倒灌的总强度影响不大;水库运行后,北支极端咸潮倒灌的强度降低,这对提高长江口水源地的供水安全及保证率有利.
- 三峡水库 /
- 长江 /
- 河口 /
- 盐水 /
- 入侵
Abstract: To investigate the influence of the operation of the Three Gorges Reservoir (TGR) on the salt water intrusion (SWI) from the North Branch (NB) to the South Branch (SB) of the Yangtze River estuary (YRE), a study was conducted by analyzing salinity observations before and after the TGR operation.The results indicate that SWI from the NB of the YRE started earlier in a typical year; the intensity of SWI increased from October to November, while it reduced from December to April of the next year due to the operation of the TGR; the reduction rate of the intensity of SWI is much less than the increasing rate; during the period from January to April when SWI is the most serious and the intake of fresh water from the YRE is the most important, the reduction of SWI is not great enough, so the effect of the operation of the TGR is not significant during this period; the operation of the TGR has little effect on the reduction of SWI of the whole year, but it has reduced the intensity of the most serious SWI from the NB to SB, which can contribute to the safety of the supply of freshwater in the YRE area.
- Three Corges Reservoir /
- Yangtze River /
- estuary /
- salt water /
- intrusion

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三峡水库对长江河口北支咸潮倒灌影响探讨

长江勘测规划设计研究院上海分院上海 200439

基金项目: 上海市科学技术委员会重大研究资助项目(08231200100);长江勘测规划设计研究院科研与技术创新资助项目(CX200830)

作者简介:
唐建华(1981- ),男,湖北广水人,硕士,工程师,主要从事河口海岸水资源、水动力等的研究.E-mail:jianhuatang2004@126.com

收稿日期: 2010-09-25
修回日期: 2011-07-09
刊出日期: 2011-07-25

中图分类号: P343.5;TV211.1

关键词:

三峡水库 /

长江 /

河口 /

盐水 /

入侵

摘要: 为了解三峡水库的运行对长江河口北支咸潮倒灌的影响,对三峡水库初步运行前后北支咸潮倒灌的变化进行了分析.结果表明:三峡水库运行后,受水库下泄水量变化影响,北支咸潮倒灌时间提前,10~11月咸潮倒灌强度增加,12月至次年4月倒灌强度减弱,咸潮倒灌强度的降幅小于增幅;在咸潮倒灌最为严重和长江口淡水利用最为重要的1~4月,水库的实际运行所引起的北支咸潮倒灌减弱的幅度并不大;三峡水库的实际运行使得北支咸潮倒灌的强度在各月重新分配,但对一年中整个咸潮期咸潮倒灌的总强度影响不大;水库运行后,北支极端咸潮倒灌的强度降低,这对提高长江口水源地的供水安全及保证率有利.

English Abstract

Influences of Three Gorges Reservoir on salt water intrusion from the north branch to the south branch of the Yangtze River estuary

Changjiang Institute of Survey, Planning, Design and Research, Shanghai Branch, Shanghai 200439, China

Funds: The study is financially supported by the Basic Research Program of Shanghai Science and Technology Commission(No.08231200100)

Received Date: 2010-09-25
Rev Recd Date: 2011-07-09
Publish Date: 2011-07-25

Keywords:

Abstract: To investigate the influence of the operation of the Three Gorges Reservoir (TGR) on the salt water intrusion (SWI) from the North Branch (NB) to the South Branch (SB) of the Yangtze River estuary (YRE), a study was conducted by analyzing salinity observations before and after the TGR operation.The results indicate that SWI from the NB of the YRE started earlier in a typical year; the intensity of SWI increased from October to November, while it reduced from December to April of the next year due to the operation of the TGR; the reduction rate of the intensity of SWI is much less than the increasing rate; during the period from January to April when SWI is the most serious and the intake of fresh water from the YRE is the most important, the reduction of SWI is not great enough, so the effect of the operation of the TGR is not significant during this period; the operation of the TGR has little effect on the reduction of SWI of the whole year, but it has reduced the intensity of the most serious SWI from the NB to SB, which can contribute to the safety of the supply of freshwater in the YRE area.

唐建华, 赵升伟, 刘玮祎, 陶静, 缪世强. 三峡水库对长江河口北支咸潮倒灌影响探讨[J]. 水科学进展, 2011, 22(4): 554-560.

引用本文:

唐建华, 赵升伟, 刘玮祎, 陶静, 缪世强. 三峡水库对长江河口北支咸潮倒灌影响探讨[J]. 水科学进展, 2011, 22(4): 554-560.

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三峡水库对长江河口北支咸潮倒灌影响探讨

作者简介: 唐建华(1981- ),男,湖北广水人,硕士,工程师,主要从事河口海岸水资源、水动力等的研究.E-mail:jianhuatang2004@126.com

Influences of Three Gorges Reservoir on salt water intrusion from the north branch to the south branch of the Yangtze River estuary

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三峡水库对长江河口北支咸潮倒灌影响探讨

长江勘测规划设计研究院上海分院 上海 200439

作者简介: 唐建华(1981- ),男,湖北广水人,硕士,工程师,主要从事河口海岸水资源、水动力等的研究.E-mail:jianhuatang2004@126.com

English Abstract

Influences of Three Gorges Reservoir on salt water intrusion from the north branch to the south branch of the Yangtze River estuary

Changjiang Institute of Survey, Planning, Design and Research, Shanghai Branch, Shanghai 200439, China

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作者简介:
唐建华(1981- ),男,湖北广水人,硕士,工程师,主要从事河口海岸水资源、水动力等的研究.E-mail:jianhuatang2004@126.com

长江勘测规划设计研究院上海分院上海 200439

作者简介:
唐建华(1981- ),男,湖北广水人,硕士,工程师,主要从事河口海岸水资源、水动力等的研究.E-mail:jianhuatang2004@126.com