洞庭湖萎缩对湖内洪水影响

刘易庄; 杨树清; 蒋昌波; 隆院男; 邓斌

doi:10.14042/j.cnki.32.1309.2019.04.004

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洞庭湖萎缩对湖内洪水影响

刘易庄, 杨树清, 蒋昌波, 隆院男, 邓斌

文章导航 > 水科学进展 > 2019 > 30(4): 485-495

刘易庄, 杨树清, 蒋昌波, 隆院男, 邓斌. 洞庭湖萎缩对湖内洪水影响[J]. 水科学进展, 2019, 30(4): 485-495. doi: 10.14042/j.cnki.32.1309.2019.04.004

引用本文:

刘易庄, 杨树清, 蒋昌波, 隆院男, 邓斌. 洞庭湖萎缩对湖内洪水影响[J]. 水科学进展, 2019, 30(4): 485-495. doi: 10.14042/j.cnki.32.1309.2019.04.004

LIU Yizhuang, YANG Shuqing, JIANG Changbo, LONG Yuannan, DENG Bin. Study on the effect of Dongting Lake's shrinkage on the flooding[J]. Advances in Water Science, 2019, 30(4): 485-495. doi: 10.14042/j.cnki.32.1309.2019.04.004

Citation:

LIU Yizhuang, YANG Shuqing, JIANG Changbo, LONG Yuannan, DENG Bin. Study on the effect of Dongting Lake's shrinkage on the flooding[J]. Advances in Water Science, 2019, 30(4): 485-495. doi: 10.14042/j.cnki.32.1309.2019.04.004

洞庭湖萎缩对湖内洪水影响

doi: 10.14042/j.cnki.32.1309.2019.04.004

刘易庄¹,
杨树清²,
蒋昌波^1,3,,
隆院男^1,3,
邓斌^1,3

1.
长沙理工大学水利工程学院, 湖南长沙 410114;
2.
School of Civil, Mining and Environmental Engineering, University of Wollongong, NSW 2522, Australia;
3.
洞庭湖水环境治理与生态修复湖南省重点实验室, 湖南长沙 410114

基金项目: 国家自然科学基金资助项目（51839002）；湖南省自然科学基金资助项目（2018JJ3535）

详细信息

作者简介:
刘易庄(1990-),男,湖南隆回人,博士研究生,主要从事河流海岸动力过程研究。E-mail:carlliuyi@stu.csust.edu.cn

通讯作者:
蒋昌波,E-mail:Jiangchb@csust.edu.cn

中图分类号: TV122;P343.3

Study on the effect of Dongting Lake's shrinkage on the flooding

1.
School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410114, China;
2.
School of Civil, Mining and Environmental Engineering, University of Wollongong, NSW 2522, Australia;
3.
Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, China

Funds: The study is financially supported by the National Natural Science Foundation of China (No.51839002) and the Natural Science Foundation of Hunan Province, China (No.2018JJ3535).

摘要: 为了更好地理解湖泊萎缩对湖内洪水过程的影响，在假定洞庭湖将继续萎缩的前提下，通过建立荆江-洞庭湖水动力模型，定量分析洞庭湖萎缩对湖内洪水的影响。研究结果表明，湖内水位及洪峰流量随湖泊面积的萎缩而增加，洪峰水位到达时刻随着湖泊萎缩而提前。若遇1996年型洪水，洞庭湖面积若从目前的2 670 km²减小至1 380 km²时，西洞庭湖及南洞庭湖内最高水位将抬高2.0 m左右，东洞庭湖水位将抬升0.4 m左右，城陵矶站点洪峰水位到达时刻将提前约11 h，洪峰流量增加约4 800 m³/s。因此，若洞庭湖湖泊面积在目前基础上（面积2 670 km²）继续萎缩，湖区特别是西洞庭湖及南洞庭湖将面临更为严峻的洪水灾害。虽然湖泊萎缩对西洞庭湖与南洞庭湖内水面坡降影响较小，但东洞庭湖内水位同时受湖泊萎缩及长江来流的影响，水面坡降发生较大变化，在距离蔡家洲80~110 km（鹿角站附近）河段水面坡降出现大幅增大。
- 湖泊萎缩 /
- 洪水 /
- 洞庭湖 /
- 荆江 /
- 洪峰流量 /
- 水面坡降
Abstract: In order to better understand the effect of the lake shrinkage on the flood process in a large lake,a quantitative analysis of the relationship between the lake shrinkage and the flooding in Dongting Lake was conducted,for which Jingjiang-Dongting Lake hydrodynamic model was applied and different scenarios of water area in the Dongting Lake were assumed. The results show that the water level and peak discharge will increase,and the peak time will occur earlier with the shrinkage of the lake. The water level in the West and South Dongting Lake would increase by around 2.0 m and the water level in the East Dongting Lake would increase by around 0.4 m if the area of Dongting Lake was shrunk from 2 670 km²to 1 380 km² when the 1996-type flood occurred in Dongting Lake. Moreover,the arrival time of the peak water level at Chenglingji station would be about 11 hours earlier,and the peak discharge would increase by about 4 300 m³/s. Hence,the flood disaster would be more severe in the Dongting Lake area if the lake continues to shrink from now on. In addition,the water surface slope changes a little in the West and South Dongting Lake. But the water surface slope increases a lot near the Lujiao station due to the water level in the East Dongting Lake is affected by both of the lake shrinkage and the water level in Yangtze River.
- lake shrinkage /
- flooding /
- Dongting Lake /
- Yangtze River /
- peak discharge /
- water surface slope

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洞庭湖萎缩对湖内洪水影响

doi: 10.14042/j.cnki.32.1309.2019.04.004

1. 长沙理工大学水利工程学院, 湖南长沙 410114;

2. School of Civil, Mining and Environmental Engineering, University of Wollongong, NSW 2522, Australia;

3. 洞庭湖水环境治理与生态修复湖南省重点实验室, 湖南长沙 410114

基金项目: 国家自然科学基金资助项目（51839002）；湖南省自然科学基金资助项目（2018JJ3535）

作者简介:
刘易庄(1990-),男,湖南隆回人,博士研究生,主要从事河流海岸动力过程研究。E-mail:carlliuyi@stu.csust.edu.cn

通讯作者: 蒋昌波,E-mail:Jiangchb@csust.edu.cn

收稿日期: 2019-01-03
刊出日期: 2019-08-25

中图分类号: TV122;P343.3

关键词:

湖泊萎缩 /

洪水 /

洞庭湖 /

荆江 /

洪峰流量 /

水面坡降

摘要: 为了更好地理解湖泊萎缩对湖内洪水过程的影响，在假定洞庭湖将继续萎缩的前提下，通过建立荆江-洞庭湖水动力模型，定量分析洞庭湖萎缩对湖内洪水的影响。研究结果表明，湖内水位及洪峰流量随湖泊面积的萎缩而增加，洪峰水位到达时刻随着湖泊萎缩而提前。若遇1996年型洪水，洞庭湖面积若从目前的2 670 km²减小至1 380 km²时，西洞庭湖及南洞庭湖内最高水位将抬高2.0 m左右，东洞庭湖水位将抬升0.4 m左右，城陵矶站点洪峰水位到达时刻将提前约11 h，洪峰流量增加约4 800 m³/s。因此，若洞庭湖湖泊面积在目前基础上（面积2 670 km²）继续萎缩，湖区特别是西洞庭湖及南洞庭湖将面临更为严峻的洪水灾害。虽然湖泊萎缩对西洞庭湖与南洞庭湖内水面坡降影响较小，但东洞庭湖内水位同时受湖泊萎缩及长江来流的影响，水面坡降发生较大变化，在距离蔡家洲80~110 km（鹿角站附近）河段水面坡降出现大幅增大。

English Abstract

Study on the effect of Dongting Lake's shrinkage on the flooding

1. School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410114, China;

2. School of Civil, Mining and Environmental Engineering, University of Wollongong, NSW 2522, Australia;

3. Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, China

Funds: The study is financially supported by the National Natural Science Foundation of China (No.51839002) and the Natural Science Foundation of Hunan Province, China (No.2018JJ3535).

Received Date: 2019-01-03
Publish Date: 2019-08-25

Keywords:

Abstract: In order to better understand the effect of the lake shrinkage on the flood process in a large lake,a quantitative analysis of the relationship between the lake shrinkage and the flooding in Dongting Lake was conducted,for which Jingjiang-Dongting Lake hydrodynamic model was applied and different scenarios of water area in the Dongting Lake were assumed. The results show that the water level and peak discharge will increase,and the peak time will occur earlier with the shrinkage of the lake. The water level in the West and South Dongting Lake would increase by around 2.0 m and the water level in the East Dongting Lake would increase by around 0.4 m if the area of Dongting Lake was shrunk from 2 670 km²to 1 380 km² when the 1996-type flood occurred in Dongting Lake. Moreover,the arrival time of the peak water level at Chenglingji station would be about 11 hours earlier,and the peak discharge would increase by about 4 300 m³/s. Hence,the flood disaster would be more severe in the Dongting Lake area if the lake continues to shrink from now on. In addition,the water surface slope changes a little in the West and South Dongting Lake. But the water surface slope increases a lot near the Lujiao station due to the water level in the East Dongting Lake is affected by both of the lake shrinkage and the water level in Yangtze River.

刘易庄, 杨树清, 蒋昌波, 隆院男, 邓斌. 洞庭湖萎缩对湖内洪水影响[J]. 水科学进展, 2019, 30(4): 485-495. doi: 10.14042/j.cnki.32.1309.2019.04.004

引用本文:

刘易庄, 杨树清, 蒋昌波, 隆院男, 邓斌. 洞庭湖萎缩对湖内洪水影响[J]. 水科学进展, 2019, 30(4): 485-495. doi: 10.14042/j.cnki.32.1309.2019.04.004

Citation:

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洞庭湖萎缩对湖内洪水影响

doi: 10.14042/j.cnki.32.1309.2019.04.004

作者简介: 刘易庄(1990-),男,湖南隆回人,博士研究生,主要从事河流海岸动力过程研究。E-mail:carlliuyi@stu.csust.edu.cn

通讯作者: 蒋昌波,E-mail:Jiangchb@csust.edu.cn

Study on the effect of Dongting Lake's shrinkage on the flooding

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洞庭湖萎缩对湖内洪水影响

doi: 10.14042/j.cnki.32.1309.2019.04.004

1. 长沙理工大学水利工程学院, 湖南长沙 410114; 2. School of Civil, Mining and Environmental Engineering, University of Wollongong, NSW 2522, Australia; 3. 洞庭湖水环境治理与生态修复湖南省重点实验室, 湖南长沙 410114

作者简介: 刘易庄(1990-),男,湖南隆回人,博士研究生,主要从事河流海岸动力过程研究。E-mail:carlliuyi@stu.csust.edu.cn

通讯作者: 蒋昌波,E-mail:Jiangchb@csust.edu.cn

English Abstract

Study on the effect of Dongting Lake's shrinkage on the flooding

全文HTML

目录

作者简介:
刘易庄(1990-),男,湖南隆回人,博士研究生,主要从事河流海岸动力过程研究。E-mail:carlliuyi@stu.csust.edu.cn

通讯作者:
蒋昌波,E-mail:Jiangchb@csust.edu.cn

1. 长沙理工大学水利工程学院, 湖南长沙 410114;

2. School of Civil, Mining and Environmental Engineering, University of Wollongong, NSW 2522, Australia;

3. 洞庭湖水环境治理与生态修复湖南省重点实验室, 湖南长沙 410114

作者简介:
刘易庄(1990-),男,湖南隆回人,博士研究生,主要从事河流海岸动力过程研究。E-mail:carlliuyi@stu.csust.edu.cn