文献类型：期刊文献

英文题名：Spatiotemporal Distribution Characteristics of Nutrients in the Drowned Tidal Inlet under the Influence of Tides: A Case Study of Zhanjiang Bay, China

作者：Wang, Shuangling[1,2];Zhou, Fengxia[1,2];Chen, Fajin[1,2];Meng, Yafei[1,2];Zhu, Qingmei[1,2]

机构：[1]Guangdong Ocean Univ, Coll Ocean & Meteorol, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Key Lab Coastal Ocean Variat & Disaster Predict, Zhanjiang 524088, Peoples R China

年份：2021

卷号：18

期号：4

起止页码：1

外文期刊名：INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH

收录：SSCI(收录号：WOS:000623567300001)、SCI-EXPANDED(收录号：WOS:000623567300001)、、Scopus(收录号：2-s2.0-85100943496)、WOS

基金：This research was co-funded by the Foundation for Young Talents in General Colleges and Universities of Guangdong Province (2019KQNCX044); the Program for Scientific Research Start-up Funds of Guangdong Ocean University (R20018); the Foundation for Young Talents in General Colleges and Universities of Guangdong, China (2019KQNCX044); the Guangdong Natural Science Foundation of China (2016A030312004), the Innovation Team Plan in Universities of Guangdong Province(2019KCXTF021), and the National Natural Science Foundation of China (U1901213).

语种：英文

外文关键词：drowned-valley tidal inlet; phosphorus; nitrogen; numerical model; Zhanjiang Bay

外文摘要：The tidal dynamics and the characteristics of pollutant migration in the drowned-valley tidal inlet, a typical unit of coastal tidal inlets, are strongly influenced by geomorphological features. Along with the development of society and the economy, the hydrodynamic and water quality environment of the tidal inlet is also becoming more disturbed by human activities, such as reclamation of the sea and the construction of large bridges. In this study, a typical drowned-valley tidal inlet, Zhanjiang Bay (ZJB), was selected for the establishment of a model via coupling of a tidal hydrodynamic model and water quality numerical model. This model can be used to simulate the migration and diffusion of pollutants in ZJB. The spatial and temporal variation processes of water quality factors of the bay under the influence of special geomorphic units was simulated at the tidal-inlet entrance, the flood/ebb tidal delta, and the tidal basin. The results show that ZJB has strong tidal currents that are significantly affected by the terrain. Under the influence of the terrain and tidal currents, the phosphorus and nitrogen concentration at the flood-tide and ebb-tide moments showed obvious temporal and spatial differences in the ebb-tide delta, tidal-inlet entrance, flood-tide delta, and tidal basin. In this study, we analyzed the response mechanism of the water quality environment to the drowned-valley tidal inlet, and this can provide theoretical guidance and a basis for decision-making toward protecting the ecology and water security of ZJB.