广西北海银滩侵蚀动力研究

刘涛; 王增军; 张建兵

doi:10.3969/j.issn.0253-4193.2020.07.013

广西北海银滩侵蚀动力研究

doi: 10.3969/j.issn.0253-4193.2020.07.013

刘涛^{1, 2,},
王增军^3, ,,
张建兵²

1.
广西大学海洋学院，广西南宁 530004
2.
北部湾环境演变与资源利用教育部重点实验室，广西南宁 530001
3.
国家海洋局北海海洋环境监测中心站，广西北海 536000

基金项目: 国家自然科学基金（41306075）；北部湾环境演变与资源利用教育部重点实验室开放基金（2015BGERLKF09）；广西自然科学基金项目（2014GXNSFBA118222）。

详细信息

作者简介:
刘涛（1980-），男，山东省滨州市人，博士，副研究员，主要从事海洋沉积学研究。E-mail：salanitana@sina.com

通讯作者:
王增军（1981-），男，河北省邯郸市人，主要从事海洋测绘及GIS相关研究。E-mail：348356169@qq.com

中图分类号: P737.13
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- 被引次数: 0
出版历程
- 收稿日期: 2019-07-22
- 修回日期: 2019-09-16
- 网络出版日期: 2020-11-18
- 刊出日期: 2020-07-25

The dynamic of the Yintan Beach erosion in the Beihai, Guangxi

Liu Tao^{1, 2
,},
Wang Zengjun^{3
, ,},
Zhang Jianbin²

1.
School of Marine Sciences, Guangxi University, Nanning 530004, China
2.
Key Laboratory of Environment Change and Resources Use in Beibu Gulf, Ministry of Education, Nanning 530001, China
3.
Beihai Marine Environmental Monitoring Center Station, State Oceanic Administration, Beihai 536000, China

摘要

摘要: 广西北海银滩是一处典型的强潮海滩，以滩面宽阔、砂质纯白为特征，为当地的一处著名旅游景点。近年来银滩也出现了岸线后退、滩肩消失、沉积粗化等侵蚀迹象。为了研究银滩侵蚀的动力机制，本文对银滩海水浴场当前的滩面高程、坡度以及滩面后退距离特征进行了调查和分析。并基于2016−2018年间的滩面高程动态变化，分析了冬、春季风浪和台风期间水位、波浪特征与滩面侵蚀之间的关系，并进而探讨了最有可能造成银滩侵蚀的台风路径。研究表明，1985年以来的滩面最大后退距离为80 m，侵蚀造成海滩上部滩面坡度降低，使得海滩上部的剖面形态向上凸状转化。冬、春季节的风浪叠加高水位可能会造成一定程度的滩面侵蚀，并在海滩上部形成脊槽地貌，但是这种侵蚀会被夏季西南向涌浪导致的回淤所恢复。造成银滩侵蚀后退的主要原因是2003年以来风暴潮重现频率增加。发源于西太平洋，经海南岛北部或雷州半岛进入北部湾的台风可以导致显著的海岸增水，最易于引起强烈的海滩侵蚀事件。银滩东侧的渔港码头阻断了自东向西的泥沙沿岸净输运，也是加剧银滩侵蚀的重要因素。
- 海滩侵蚀 /
- 台风 /
- 海滩剖面形态 /
- 银滩
Abstract: The Yintan Beach in the Beihai, Guangxi, is a typical macro-tidal beach characterized by wide beach surface and pure white sand. In recent years, Yintan Beach has been eroded, which result in the retreat of coastline and the disappearance each shoulder. To study the dynamic of beach erosion, the elevation, slope and retreat distance of beach surface were comprehensively analyzed. The change of beach surface elevation caused by Typhoon 1621 and Typhoon 1713, as well as the water level process and offshore wave characteristics during the two typhoons were studied. The relationship between typhoon track and beach erosion was discussed. The results show that since 1985, the position line of average sea level has retreated by 0−80 m. Beach erosion has resulted in a decrease in the slope of the upper beach surface and a more convex beach profile. The main reason for beach erosion is the frequency increase of typhoon landing in recent years. Typhoons that originate in the western Pacific Ocean and enter the Beibu Gulf through the northern part of the Hainan Island or Leizhou Peninsula can form strong storms and cause higher coastal water increase along the coast of the Guangxi, which is most likely to lead to strong beach erosion events.
- beach erosion /
- typhoon /
- beach section shape /
- Yintan Beach

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图 1 银滩的地理位置及研究区域

Fig. 1 Location of the Yintan Beach and study area

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图 2 滩面高程等值线（a）及不同时期的平均海平面位置线（b）

Fig. 2 The contour of beach surface elevation (a), and the distance of mean sea level position withdrawing (b)

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图 3 银滩典型海滩剖面形态

Fig. 3 The elevation of typical transects in the Yintan Beach

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图 4 滩面坡度空间变化（a）及海滩上部（高程1～2 m）滩面坡度与侵蚀后退距离的关系（b）

Fig. 4 The spatial change of beach surface slope (a), and the relation between beach slope and withdrawing distance of mean sea level position (b)

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图 5 2016−2018年银滩典型滩面高程变化

Fig. 5 The variation of typical beach surface elevation in the Yintan Beach from 2016 to 2018

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图 6 台风“莎莉嘉”期间银滩岸外水位过程及波浪特征

Fig. 6 The variation of offshore water depth and wave height during Typhoon Sarika in the Yintan Beach

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图 7 卫星图像（来源于Google Earth）反映的银滩海水浴场滩面地貌特征

Fig. 7 The morphology of the Yintan Beach surface in satellite images (from Google Earth)

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图 8 侵蚀导致的银滩海滩剖面形态演化示意图

Fig. 8 The evolution of the Yintan Beach transect shape caused by erosion

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图 9 中心靠近广西沿岸的主要台风路径类型示意图

Fig. 9 Three types of typhoon center tracks passed by Guangxi coast

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参考文献(24)

[1]	王颖, 吴小根. 海平面上升与海滩侵蚀[J]. 地理学报, 1995, 50(2): 118−127. doi: 10.3321/j.issn:0375-5444.1995.02.003 Wang Ying, Wu Xiaogen. Sea level rise and beach response[J]. Acta Geographica Sinica, 1995, 50(2): 118−127. doi: 10.3321/j.issn:0375-5444.1995.02.003
[2]	季子修. 中国海岸侵蚀特点及侵蚀加剧原因分析[J]. 自然灾害学报, 1996, 5(2): 65−75. Ji Zixiu. The characteristics of coastal erosion and cause of erosion[J]. Journal of Natural Disasters, 1996, 5(2): 65−75.
[3]	Komar P D. Coastal erosion-underlying factors and human impacts[J]. Shore & Beach, 2000, 68(1): 3−16.
[4]	李从先, 李乃芳, 庞衍军, 等. 广西壮族自治区海岸带和海涂资源综合调查报告: 第6卷[M]. 南宁: 广西壮族自治区海岸带和海涂资源综合调查小组, 1986. Li Congxian, Li Naifang, Pang Yanjun, et al. Investigation Report of Coastal Zone and Beach Resources in Guangxi Province: Vol. 6[M]. Nanning: Investigation Report of Coastal Zone and Beach Resources in Guangxi Province Team, 1986.
[5]	戚洪帅, 蔡锋, 雷刚, 等. 华南海滩风暴响应特征研究[J]. 自然科学进展, 2009, 19(9): 975−985. doi: 10.3321/j.issn:1002-008X.2009.09.011 Qi Hongshuai, Cai Feng, Lei Gang, et al. Study on storm response characteristics of South China Beach[J]. Natural Science Progress of China, 2009, 19(9): 975−985. doi: 10.3321/j.issn:1002-008X.2009.09.011
[6]	何碧娟, 陈波. 北海银滩海岸冲刷及环境污损原因分析[J]. 广西科学, 2002, 9(1): 69−72, 77. doi: 10.3969/j.issn.1005-9164.2002.01.021 He Bijuan, Chen Bo. Causes of environmental pollution and erosion of Yintan Beach in Beihai City of Guangxi[J]. Guangxi Sciences, 2002, 9(1): 69−72, 77. doi: 10.3969/j.issn.1005-9164.2002.01.021
[7]	杨云川, 廖丽萍, 燕柳斌, 等. 北海市银滩土地利用演变特征及其影响因素[J]. 水土保持通报, 2016, 36(6): 223−230. Yang Yunchuan, Liao Liping, Yan Liubin, et al. Land use evolution and its impact factors in Silver Beach of Beihai City[J]. Bulletin of Soil and Water Conservation, 2016, 36(6): 223−230.
[8]	甘富万, 孙晋东, 赵艳林, 等. 基于WRF风场再分析的银滩波浪场数值模拟[J]. 广西大学学报:自然科学版, 2016, 41(5): 1342−1348. Gan Fuwan, Sun Jindong, Zhao Yanlin, et al. Numerical simulation of wave field in Silver Beach based on WRF wind field reanalysis[J]. Journal of Guangxi University: Natural Science Edition, 2016, 41(5): 1342−1348.
[9]	黄鹄, 戴志军, 施伟勇, 等. 强潮环境下的海滩剖面沉积特征——以春季广西北海银滩为例[J]. 热带海洋学报, 2011, 30(4): 71−76. doi: 10.3969/j.issn.1009-5470.2011.04.011 Huang Hu, Dai Zhijun, Shi Weiyong, et al. Deposition characteristics of beach profile in strong-tidal environment–A case study of Yintan, Guangxi during spring[J]. Journal of Tropical Oceanography, 2011, 30(4): 71−76. doi: 10.3969/j.issn.1009-5470.2011.04.011
[10]	黎树式, 戴志军, 葛振鹏, 等. 强潮海滩响应威马逊台风作用动力沉积过程研究——以北海银滩为例[J]. 海洋工程, 2017, 35(3): 89−98. Li Shushi, Dai Zhijun, Ge Zhenpeng, et al. Sediment dynamic processes of macro-tidal beach in response to Typhoon Rammasun action–A case study of Yintan, Beihai[J]. The Ocean Engineering, 2017, 35(3): 89−98.
[11]	徐麟村, 谢玉岗, 陈玉, 等. 广西壮族自治区海岸带和海涂资源综合调查报告(综合报告)[M]. 北京: 海洋出版社, 1986. Xu Lincun, Xie Yugang, Chen Yu, et al. Investigation Report of Coastal Zone and Beach Resources in Guangxi Province[M]. Beijing: China Ocean Press, 1986.
[12]	杨干然, 李春初, 罗章仁, 等. 海岸动力地貌学研究及其在华南港口建设中的应用[M]. 广州: 中山大学出版社, 1995. Yang Ganran, Li Chunchu, Luo Zhangren, et al. Research on Coastal Dynamic Geomorphology and its Application in Port Construction in South China[M]. Guangzhou: Sun Yat-sen University Press, 1995.
[13]	莫永杰, 廖思明, 葛文标, 等. 现代海平面上升对广西沿海影响的初步分析[J]. 广西科学, 1995(1): 38−41. Mo Yongjie, Liao Siming, Ge Wenbiao, et al. Primary analyses of the impacts to Guangxi coastal areas by modern sea level rise[J]. Guangxi Sciences, 1995(1): 38−41.
[14]	陈波, 董德信, 陈宪云, 等. 历年影响广西沿海的热带气旋及其灾害成因分析[J]. 海洋通报, 2014, 33(5): 527−532. doi: 10.11840/j.issn.1001-6392.2014.05.007 Chen Bo, Dong Dexin, Chen Xianyun, et al. Analysis of tropical cyclones affecting Guangxi coast over the years and their disaster causes[J]. Marine Science Bulletin, 2014, 33(5): 527−532. doi: 10.11840/j.issn.1001-6392.2014.05.007
[15]	Spencer T, Brooks S M, Evans B R, et al. Southern North Sea storm surge event of 5 December 2013: water levels, waves and coastal impacts[J]. Earth-Science Reviews, 2015, 146: 120−145. doi: 10.1016/j.earscirev.2015.04.002
[16]	Coco G, Senechal N, Rejas A, et al. Beach response to a sequence of extreme storms[J]. Geomorphology, 2014, 204: 493−501. doi: 10.1016/j.geomorph.2013.08.028
[17]	Armaroli C, Grottoli E, Harley M D, et al. Beach morphodynamics and types of foredune erosion generated by storms along the Emilia-Romagna coastline, Italy[J]. Geomorphology, 2013, 199: 22−35. doi: 10.1016/j.geomorph.2013.04.034
[18]	Gallop S L, Bosserelle C, Eliot I, et al. The influence of limestone reefs on storm erosion and recovery of a perched beach[J]. Continental Shelf Research, 2012, 47: 16−27. doi: 10.1016/j.csr.2012.08.001
[19]	Esteves L S, Brown J M, Williams J J, et al. Quantifying thresholds for significant dune erosion along the Sefton Coast, Northwest England[J]. Geomorphology, 2012, 143−144: 52−61. doi: 10.1016/j.geomorph.2011.02.029
[20]	陈子燊, 李志强, 王扬圣. 台风作用下海滩剖面地形动力与侵蚀机制分析[C]//第十三届中国海洋(岸)工程学术讨论会论文集. 北京: 海洋出版社, 2007: 331−336. Chen Zisen, Li Zhiqiang, Wang Yangsheng. Analysis on topographic dynamics and erosion mechanism of beach profile under typhoon[C]//Proceedings of the 13th China Ocean (Shore) Engineering Symposium. Beijing: China Ocean Press, 2007: 331−336.
[21]	蔡锋, 雷刚, 苏贤泽, 等. 台风“艾利”对福建沙质海滩影响过程研究[J]. 海洋工程, 2006, 24(1): 98−109. doi: 10.3969/j.issn.1005-9865.2006.01.016 Cai Feng, Lei Gang, Su Xianze, et al. Study on process response of Fujian beach geomorphology to Typhoon Aere[J]. The Ocean Engineering, 2006, 24(1): 98−109. doi: 10.3969/j.issn.1005-9865.2006.01.016
[22]	蔡锋, 苏贤泽, 夏东兴. 热带气旋前进方向两侧海滩风暴效应差异研究——以海滩对0307号台风"伊布都"的响应为例[J]. 海洋科学进展, 2004, 22(4): 436−445. doi: 10.3969/j.issn.1671-6647.2004.04.005 Cai Feng, Su Xianze, Xia Dongxing. Study on the difference between storm effects of beaches on two sides of the tropical cyclone track--Taking the responses of beaches to No. 0307 Typhoon Imbudo as an example[J]. Advances in Marine Science, 2004, 22(4): 436−445. doi: 10.3969/j.issn.1671-6647.2004.04.005
[23]	张操, 胡松, 陈默. 影响广西沿海的热带气旋分析[J]. 海洋预报, 2014, 31(5): 37−42. doi: 10.11737/j.issn.1003-0239.2014.05.006 Zhang Cao, Hu Song, Chen Mo. Characteristics of the tropical cyclones influencing Guangxi coastal area[J]. Marine Forecasts, 2014, 31(5): 37−42. doi: 10.11737/j.issn.1003-0239.2014.05.006
[24]	陈波, 董德信, 陈宪云, 等. 南海北部台风引起的广西近岸增减水研究[J]. 海洋湖沼通报, 2017(2): 1−11. Chen Bo, Dong Dexin, Chen Xianyun, et al. A research on fluctuations of water level in Guangxi coast caused by typhoons in the Northern South China Sea[J]. Transactions of Oceanology and Limnology, 2017(2): 1−11.