Optimizing Of Coastal Spatial Patterns And Analyzing The Suitability Of Developing Port Traffic

Ports are important features of the coastal zone,providing connectivity between transport networks on land and sea.While the economic activity enabled by ports increases national and regional economic prosperity,their presence also alters coastal processes such as currents,tides and wave action,sediment and pollutant transport,and the behavior of marine fauna.This has created new environmental hazards and increased the level of risk to human residents and ecosystems in coastal zones.Therefore,there is an urgent need to plan and manage ports and associated infrastructure effectively to balance the economic benefits they provide with the detrimental effects they often have on the coastal environment.This dissertation evaluates the suitability of port transportation development from a problem-oriented perspective.Initially,indicators and models were identified to evaluate spatial patterns of production,life,and ecology in the coastal zone and identify the optimal configuration.Then,this dissertation demonstrates the rationality and feasibility of optimizing the coastal zone,beginning with the development of port traffic.This was achieved by analyzing the prosperity of port traffic,its correlation with urban development,and development potential.The main focus and results of this dissertation are as follows:(1)Coupling model of port development and the carrying safety of coastal zone ecosystems.To make efficient use of coastline resources and relieve the pressure on port traffic development and the environmental bearing of coastline resources,this dissertation establishes a coupling model of coastline development and carrying safety.It then discusses the relationship between coastline development intensity and the carrying safety of the coastal environment in terms of time series and spatial distribution.It provides a basis for the efficient utilization of the port coastline and the protection of the coastal zone environment.(2)Optimization of coastal zones.To optimize the layout of ports and make efficient use of coastal resources,this dissertation establishes a multi-objective optimization model of coastal space.It includes a constraint optimization criterion for functional conflicts of the same evaluation unit and coastal land-sea adjacent conflicts to optimize the spatial pattern of coastal production,ecology,and living.A relative deviation index is used to compare and analyze the current pattern of coastal development,proposed future development,and optimal land-use patterns in the coastal zone,providing support for the methodology chosen and the validity of its results.(3)Analysis on suitability and development potential of port traffic development.This dissertation establishes the prosperity index of port traffic based on remote sensing imagery and analyzes the prosperity state of port traffic.It demonstrates the correlation between the prosperity index of port traffic and port throughputs which can be used as an evaluation tool for port traffic development.This dissertation also establishes a model coupling port traffic development and hinterland city development and discusses the relationship between port traffic development and urban prosperity based on a time series.Additionally,a port traffic development potential index was established to analyze the port traffic development potential.(4)Port ship information extraction.This dissertation establishes a method for port ship information extraction based on LBV and multi-scale wavelet decomposition.Experiments show that LBV transformation can increase the information entropy and average gradient value of remote sensing images and improve the recognition and clarity of ground object information on remote sensing images.Feature extraction accuracy when analyzing imagery of port shipping can be improved by extracting the eigenvalues of sea surface features through multi-scale wavelet decomposition.In light of the pressure on coastal resources and ecosystems from port development,this dissertation establishes a model for the optimization of coastal development and discusses the development of port infrastructure and the optimal utilization of coastal zone resources.It provides a scientific basis and feasible plan for port traffic managers and researchers to develop policies governing the planning of port developments and environmental protection.