椒江河口河床宽深比对水沙条件的响应分析

doi:10.3969/j.issn.1001-909X.2014.04.009

海洋学研究 ›› 2014, Vol. 32 ›› Issue (4): 69-75.DOI: 10.3969/j.issn.1001-909X.2014.04.009

椒江河口河床宽深比对水沙条件的响应分析

周鸿权¹, 李伯根¹, 顾裕兵², 巩明¹, 杨辉¹

1.国家海洋局第二海洋研究所工程海洋学重点实验室,浙江杭州 310012;
2.浙江省电力设计院,浙江杭州 310012

收稿日期:2014-03-01 修回日期:2014-12-04 出版日期:2014-12-15 发布日期:2022-11-25
作者简介:周鸿权(1981－),男,浙江萧山区人,工程师,主要从事河口、海岸动力沉积、地貌及应用研究。E-mail:zhouhq_2002@163.com
基金资助:
国家海洋局青年基金项目资助(2012327);国家海洋局第二海洋研究所基本科研业务费专项项目资助(JT1203)

Response analysis of the riverbed width-depth ratio to hydrographic and sediment condition in Jiaojiang Estuary

ZHOU Hong-quan¹, LI Bo-gen¹, GU Yu-bing², GONG Ming¹, YANG Hui¹

1. Laboratory of Engineering Oceangraphy, The Second Institute of Oceanography, SOA, Hangzhou 310012, China;
2. Zhejiang Electric Power Design Institute, Hangzhou 310012, China

Received:2014-03-01 Revised:2014-12-04 Online:2014-12-15 Published:2022-11-25

摘要/Abstract

摘要： 本文利用多年水文泥沙和水深地形资料,分析了椒江河口河床宽深比长周期变化特征,并尝试探讨了河床宽深比对水沙条件的响应。结果表明,径流和潮动力对河床形态影响程度沿程此消彼长,江口沙上游河段受径流作用较明显,栅浦下游河段受潮动力影响较显著,这应是弯曲和顺直河段河床横断面形态调整差异的影响因素;河床宽深比与径流平均输沙率正相关,径流产沙量减少,河床形态趋向窄深;顺直河段宽深比与平均流量负相关,径流来水减少,河床趋于宽浅;河床宽深比与平均潮差负相关,应是人为作用改变了潮动力对河口河床形态调整的影响。

关键词: 椒江, 宽深比, 河床形态, 长周期调整, 统计分析

Abstract: Based on the multi-year hydrographic and bathyorographical data, the long-term variation of the riverbed width-depth ratio of Jiaojiang Estuary was analyzed and the response of the riverbed width-depth ratio to hydrographic and sediment condition was tried to discuss. The results indicate that the influences of runoff and tidal dynamic on the riverbed configuration are always opposite along the river channel, runoff is more significant on bend reach above Jiangkousha, and tide dynamic is the dominant on the straight reach from the lower reach of Zhapu, which may be the influence factor of regulating difference of riverbed transection configuration between the bend reach and straight reach. The correlation between the width-depth ratio and mean suspended sediment discharge is positive, which indicates that the riverbed configuration has tended to be narrow and deep with the decrease of the suspended sediment discharge. The negative correlation between the width-depth ratio and mean water discharge may indicate that the riverbed configuration of straight reach has tended to be wide and shallow with the decrease of the water discharge. Human being may change the effect of the tidal dynamics to the riverbed configuration for decades, which result in the negative correlation between the width-depth ratio and mean tidal range.

Key words: Jiaojiang, width-depth ratio, riverbed configuration, long-term adjustment, statistical analysis

中图分类号:

TV148⁺.3

周鸿权, 李伯根, 顾裕兵, 巩明, 杨辉. 椒江河口河床宽深比对水沙条件的响应分析[J]. 海洋学研究, 2014, 32(4): 69-75.

ZHOU Hong-quan, LI Bo-gen, GU Yu-bing, GONG Ming, YANG Hui. Response analysis of the riverbed width-depth ratio to hydrographic and sediment condition in Jiaojiang Estuary[J]. Journal of Marine Sciences, 2014, 32(4): 69-75.

参考文献

[1] BI Ao-hong,SUN Zhi-lin. A Preliminary study on estuarine process of the Jiaojiang river[J]. Journal of Sediment Research,1984(3):12-25.
毕敖洪,孙志林.椒江河口过程初步研究[J].泥沙研究,1984(3):12-25.
[2] LI Yan,PAN Shao-ming,SHI Xiao-dong, et al. Recent sedimentary rates for the zone of the turbidity maximum in the Jiaojiang estuary[J]. Journal of Nanjing University:Natural Sciences,1992,28(4):623-632.
李炎,潘少明,施晓冬,等.椒江河口高含沙量区的现代沉积速率[J].南京大学学报,1992,28(4):623-632.
[3] SUN Ying,CAI Ti-lu,CAI Jia-long,et al. Runoff features of mountain river estuary in Zhejiang Province and Fujian Province and its influence on estuarine erosion and sedimentation[J].Donghai Marine Science,1983,1(2):29-35.
孙英,蔡体录,柴加龙,等.闽浙山溪性河口的径流特征及其对河口的冲淤影响[J].东海海洋,1983,1(2):29-35.
[4] ZHU Yong-kang. Some characteristics of the Jiaojiang mountain river estuary under strong tides in Zhejiang province[J]. Geographical Research,1986,5(7):21-31.
祝永康.浙江椒江山溪性强潮河口的若干特征[J].地理研究,1986,5(7):21-31.
[5] SUN Zhi-lin. On cause of turbidity maximum in strongly mixed estuary in China[J]. Acta Oceanologica Sinica,1993,15(3):63-72.
孙志林.中国强混合河口最大浑浊区成因研究[J].海洋学报,1993,15(3):63-72.
[6] Dong Li-xian. Field and modeling studies of fine sediment dynamics in the extremely turbid Jiaojiang River, China[J]. J Coas Res,1997,13(4):955-1 003.
[7] LI Bo-gen,EISMA D, XIE Qin-chun, et al. Concentration, clay mineral composition and Coulter counter size distribution of suspended sediment in the turbidity maximum of the Jiaojiang river estuary, Zhejiang, China[J]. Journal of Sea Research,1999,42(2):105-116.
[8] DO Li-xian. Mixing process in highly turbid waters of Jiaojiang river estuary[J]. Oceanologia et Limnologia Sinica,1998,29(5):534-540.
董礼先.椒江河口高浑浊水混合过程研究[J].海洋与湖沼,1998,29(5):534-540.
[9] XIE Qin-chun,LI Bo-gen,XIA Xiao-ming, et al. Vertical distribution of suspended matter and lutoclines in the Jiaojiang estuary[J]. Acta Oceanologica Sinica,1998,20(6): 58-69.
谢钦春,李伯根,夏小明,等.椒江河口悬沙浓度垂向分布和泥跃层发育[J].海洋学报,1998,20(6):58-69.
[10] LI Yan,XIA Xiao-ming,DONG Li-xian. Distribution of fluid mud layer in the Jiaojiang Estuary, China[J]. Acta Oceanologica Sinica,1998,20(4):69-82.
李炎,夏小明,董礼先.椒江河口浮泥的分布和调整[J].海洋学报,1998,20(4):69-82.
[11] LI Bo-gen,WANG Cai-hong,ZHOU Hong-quan, et al. Adjustment mechanism on the erosion and accretion of riverbed in the Jiaojiang estuary in Zhejiang province, China [J]. Acta Oceanologica Sinica,2009,31(5):89-100.
李伯根,王才洪,周鸿权,等.近70a来椒江河口河床冲淤调整机理[J].海洋学报,2009,31(5):89-100.
[12] DOU Guo-ren.The bed form of the alluvial streams and the tidal delta[J].Journal of Hydraulic Engineering,1964(2):1-13.
窦国仁.平原冲积河流及潮汐河口的河床形态[J].水力学报,1964(2):1-13.
[13] QIAN Ning,ZHANG Ren,ZHOU Zhi-de. Evolution of riverbed [M]. Beijing:Science Press,1989.
钱宁,张仁,周志德.河床演变学[M].北京:科学出版社,1989.
[14] HAN Zeng-cui, FU Ning-ping, XU You-cheng. Estuarine hydraulic geometry and impacts of human activities[J]. Hydro-Science and Engineering,2001(1):30-37.
韩曾萃,符宁平,徐有成.河口河相关系及其受人类活动的影响[J].水利水运工程学报,2001(1):30-37.
[15] ZHOU Hai, JIANG Guo-jun. Dynamic deposition under the influences of regulation in Jiaojiang estuary[J]. Hydro-Science and Engineering,2001(3):48-53.
周海,蒋国俊.椒江口整治工程影响下的动力沉积作用[J].水利水运工程学报,2001(3):48-53.
[16] NI Min, JIANG Guo-jun. Influence of renovation project in Jiaojiang on estuary dynamic and evolution of riverbed[J]. Journal of Water Resources ＆ Water Engineering,2011,22(4):161-166.
倪敏,蒋国俊.椒江河口补偿工程对河口动力及河床演变的影响[J].水资源与水工程学报,2011,22(4):161-166.

椒江河口河床宽深比对水沙条件的响应分析

Response analysis of the riverbed width-depth ratio to hydrographic and sediment condition in Jiaojiang Estuary

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 1

编辑推荐

Metrics