Research On Coastal Ecological Corridor Design Theory

Coastal ecological corridors are new things which have been proposed in recent years.It mainly includes coastal green belts adjacent to land areas,seawall(protective shore)ecological belts,and coastal ecological belts.Its functional positioning is mainly to protect biodiversity,filter pollutants,purify water bodies,weaken waves,protect against erosion,enhance landscape effects,and improve coastal ecological environment.As part of improving the coastal ecological environment,the construction of coastal ecological corridors is an important measure to slow down and repair the coastal water quality and ecological environment damage caused by current waterway engineering activities.At present,there are few special studies on coastal ecological corridors,and there is also lack of norms for coastal ecological construction.Through literature review and engineering case analysis,this paper aims to summarize the relevant theories of coastal ecological corridor design and improve the method and content of coastal ecological corridor design.The main findings obtained are as follows.(1)The theory of planning and design of coastal ecological corridors is studied from two aspects of ecological theory and planning design theory.On this basis,this paper summarizes the basic principles,contents and methods of coastal ecological corridor planning.(2)This paper has improved the design content and method of two important parts(bio-protection engineering,ecological coastal engineering structure)in coastal ecological corridor engineering.The ecological coastal engineering structure design includes two parts: typical structural type(permeable structure,hierarchical slope structure,complex structure)and additional ecological structure(artificial reef,ecological wave block,structure additional vegetation planting).(3)The ecological transformation of the existing projects was sorted out,and the reconstruction design process included collecting data,setting targets,structural design(coverage form,trestle form,compartment form),construction,monitoring and maintenance management.This study preliminarily summarizes the relevant theories of coastal ecological corridor design,and improves the biological protection engineering design,ecological coastal engineering structural design and ecological reconstruction methods of coastal engineering.The results of this paper can provide theoretical basis and reference basis for the compilation of relevant specifications for ecological coastal engineering.