| 伶仃洋茅洲河口动力地貌演变过程 |
| |
| 引用本文： | 季荣耀,陆永军,詹小磊,莫思平,顾继一,王志力.伶仃洋茅洲河口动力地貌演变过程[J].水科学进展,2019,30(6):781-788. |
| |
| 作者姓名： | 季荣耀 陆永军 詹小磊 莫思平 顾继一 王志力 |
| |
| 作者单位： | 南京水利科学研究院水文水资源与水利工程科学国家重点实验室, 江苏南京 210029 |
| |
| 基金项目： | 国家重点研发计划资助项目（2018YFC0407504）；国家自然科学基金资助项目（51779150） |
| |
| 摘 要： | 利用长系列的水文泥沙、水下地形和遥感影像等数据，通过数字地形高程模型和水动力数学模型等方法，探讨了伶仃洋茅洲河口的动力地貌演变过程及主要原因。结果表明:伶仃洋中滩海区近年冲刷态势明显，拦江沙与矾石浅滩呈现逐渐分离并有发育形成"新中槽"的演变趋势；茅洲河口门深槽的形成发育以落潮流动力作用为主，交椅湾深槽具有涨潮沟的性质，交椅沙形成发育对于稳定周边海区滩槽格局具有重要作用；大规模围涂造地和海床采砂等人类开发活动显著改变了伶仃洋的地形边界条件，进而影响河口水沙输移和滩槽格局，亟需加强监控。
|
| 关 键 词： | 滩槽稳定性 动力地貌 人类活动 茅洲河口 伶仃洋 |
| 收稿时间： | 2019-01-01 |
Study on the morphodynamic evolution processes in the Maozhou Estuary of the Lingding Bay |
| |
| JI Rongyao,LU Yongjun,ZHAN Xiaolei,MO Siping,GU Jiyi,WANG Zhili.Study on the morphodynamic evolution processes in the Maozhou Estuary of the Lingding Bay[J].Advances in Water Science,2019,30(6):781-788. |
| |
| Authors: | JI Rongyao LU Yongjun ZHAN Xiaolei MO Siping GU Jiyi WANG Zhili |
| |
| Affiliation: | State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China |
| |
| Abstract: | Keep the seabed stability is of critical importance to estuary regulation and development. Based on the long time-series data such as hydrologic sediment,underwater topography and remote sensing,characteristics and trends of the morphodynamic evolution processes in the Maozhou Estuary of the Lingding Bay is presented by use of the digital elevation model and hydrodynamic mathematical model. In recent decades,the seabed in the Middle Shoal of the Lingding Bay was eroded obviously,which resulted in the separation of the Lanjiang Shoal and Fanshi Shoal,and a new Middle Channel was developed. The outlet channel of the Maozhou Estuary is controlled by the ebb tidal currents,and the channel of the Jiaoyi Bay instead of the flood tidal currents. The Jiaoyi Shoal is of critical importance to maintain the existing pattern of the shoals and the channels in the adjacent sea area. The new trend of the morphodynamic evolution processes of the Lingding Bay is from the effects caused by the large-scale human activities such as tidal flat reclamation and sand mining,which is urgent to monitor. |
| |
| Keywords: | stability of shoal and channel morphodynamic human activity Maozhou Estuary Lingding Bay |
|
| 点击此处可从《水科学进展》浏览原始摘要信息 |
|
点击此处可从《水科学进展》下载全文 |
|
