三峡水库蓄水期长江中游湖泊调蓄能力变化

doi:10.11988/ckyyb.20171058

院报 ›› 2018, Vol. 35 ›› Issue (5): 147-152.DOI: 10.11988/ckyyb.20171058

• 第十届全国泥沙基本理论研究学术研讨会专栏 • 上一篇下一篇

三峡水库蓄水期长江中游湖泊调蓄能力变化

邓金运, 范少英, 庞灿楠, 刘聪聪

武汉大学水资源与水电工程科学国家重点实验室, 武汉 430072

收稿日期:2017-09-15 出版日期:2018-05-01 发布日期:2018-06-16
作者简介:邓金运(1975- ), 男, 山东滕州人,副教授,博士,主要从事水沙运动基本理论及江湖关系等研究。E-mail: dengjinyun@whu.edu.cn
基金资助:
国家自然科学基金重点项目(41331174); 江西省科技计划项目(20051BBG70044)

Adjustment of Regulation and Storage Capacity of Lakes in the Middle Yangtze River Basin During Impoundment of Three Gorges Reservoir

DENG Jin-yun, FAN Shao-ying, PANG Can-nan, LIU Cong-cong

State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University, Wuhan 430072, China

Received:2017-09-15 Online:2018-05-01 Published:2018-06-16

摘要/Abstract

摘要： 长江中游通江湖泊的调蓄能力与整个区域的水安全密切相关。在对洞庭湖、鄱阳湖(下称“两湖”)调蓄机理探讨的基础上,揭示了两湖泊调蓄的临界状态及临界条件,分析了三峡水库蓄水期两湖泊调蓄能力的变化。研究结果表明:洞庭湖与鄱阳湖具有相同的调蓄机理,其调蓄能力变化受入湖流量和长江干流顶托的双重影响,湖泊调蓄过程表现为入湖与出湖水量的动态调整,湖泊调蓄量不断向0趋近。三峡水库运用后,两湖泊9—10月份调蓄能力下降明显,与2003—2007年相比,2008—2014年两湖汛后调蓄水量的减小更大。

关键词: 三峡水库, 长江中游湖泊, 蓄水期, 调蓄能力, 临界状态

Abstract: The regulation and storage capacity of lakes in the middle Yangtze River basin is closely related with water security of the whole region. In this paper, the critical state and critical storage conditions of Dongting Lake and Poyang Lake, two typical largest lakes in the middle Yangtze River, are revealed by analyzing the mechanism of regulation and storage. Moreover, the adjustments of regulation and storage of the two lakes before and after the operation of Three Gorges Reservoir are quantified. Results demonstrate that the rules of regulation and storage of the two lakes are alike: storage capacity is affected by both the inflow of the lake and the blocking of the mainstream Yangtze River, which indicates that storage adjustment can be reflected by the dynamic changes of incoming flow and discharge, with regulation amount approaching zero constantly. After the operation of the Three Gorges Reservoir, storage capacity reduced apparently from every September to October; the reduction after flood season of 2008-2014 was more intense than that of 2003-2007.

Key words: Three Gorges Reservoir, lakes in the middle Yangtze River Basin, impoundment period, regulation and storage capacity, critical state

中图分类号:

TV143

邓金运, 范少英, 庞灿楠, 刘聪聪. 三峡水库蓄水期长江中游湖泊调蓄能力变化[J]. 院报, 2018, 35(5): 147-152.

DENG Jin-yun, FAN Shao-ying, PANG Can-nan, LIU Cong-cong. Adjustment of Regulation and Storage Capacity of Lakes in the Middle Yangtze River Basin During Impoundment of Three Gorges Reservoir[J]. JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI, 2018, 35(5): 147-152.

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三峡水库蓄水期长江中游湖泊调蓄能力变化

Adjustment of Regulation and Storage Capacity of Lakes in the Middle Yangtze River Basin During Impoundment of Three Gorges Reservoir

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