Abstract
Reclamation changes the characteristics of water movement, then affects the marine environment system, and may even lead to environmental disasters. The influence on the 4 aspects of the current field, wave field, suspended sediment field and topography were summarized. Impacts of large area of reclamation project on the marine environment are found very few, and to expand the study scope and make up for the current lack of a wide range of studies on multiple reclamation impacts on the marine environment is an important research direction in the future; In the long time scale, it is a lack of long-term cumulative effects on coastal reclamation and whether the influence can restore; the present study focuses only on the impact evaluation of scope, type, and degree from lack of exploring the potential mechanism; It is a lack of interdisciplinary research, and the analysis of comprehensive influence of reclamation projects on land, sea and biological and ecological environment.
Highlights
Research on the Influence on Wave Field. It was found through simulation by Wang Q, et al [38] that the effective design wave height and the mean wave period of 50-year return period in Jiangsu coastal waters have a trend of reduction after the implementation of the reclamation planning project of Jiangsu coastal beach
The results show that the large-scale reclamation plan of Haizhou Bay has little influence on the water and sediment environment of extensiveness, and it doesn’t change the tidal current movement and suspended sediment distribution characteristics
The impact of reclamation project on the water and silt environment offshore is mainly focused on the researches on tidal current field, wave field, suspended silt field and topography
Summary
The reclamation project has changed the natural coastline, topography, bay area and other natural attributes of the sea, resulting in the changes of the water and sediment dynamic environment. With the development of computer technology, besides the analysis and comparison of data, the mathematical model is more and more widely applied to solve the apractical problems of offshore engineering [29]. The mutual effects of multi-factors such as wind, wave, tide, flow, salinity and sediment in wide-range estuary and coast can be solved by mathematical model whose application in coastal engineering in recent years has been paid more and more attention to
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