Abstract:With the establishment of the Belt and Road national strategy, Quanzhou Port is a significant development opportunity. Quanzhou Port is the origin of the 21st century Maritime Silk Road and part of the Belt and Road, but as a pioneer project of the Maritime Silk Road and the main port in the Belt and Road strategy, its development has encountered some challenges and problems. Hence, this paper aims to evaluate the competitiveness of Quanzhou Port based on the criteria selected by experts and corresponding improvement suggestions are put forward for its weaknesses. Using fuzzy-AHP and ELECTRE III, port competitiveness is evaluated according to the total weights obtained based on the different criteria used. The key criteria consist of six factors (port size, port location, hinterland economy, port costs, operations management and growth potential) that are divided into 18 sub-criteria. Five competing ports were selected with respect to geographical proximity. The order of ranking according to ELECTRE III are as follows: Kaohsiung Port, Xiamen Port, Fuzhou Port, Taichug Port and Quanzhou Port. The findings show that the port of Quanzhou appears last in the ordering sequence, resulting in a need for integrative approaches to promote its competitiveness. Compared with competitive ports, Quanzhou Port has relatively weak overall infrastructure and relatively high port costs, which leads to a lack of obvious flow of port materials and a decrease in professional unloading services. Particularly in hinterland port economies, the industrial structure is extensive and backward. Hence, the question of how to achieve a green transformation of the manufacturing industry will be important for Quanzhou Port. This paper points out directions for the future development of Quanzhou Port and applies comprehensive evaluation methods, namely fuzzy-AHP and ELECTRE III.

Controlling the large-scale haze in Beijing-Tianjin-Hebei region has become a social issue of great attention to government departments and the public. This paper establishes the NO2 diffusion model based on the Gauss plume model, by selecting Shijiazhuang city of Hebei Province as a case which is influenced seriously by NO2 pollution, and analyses the diffusion law, diffusion range and concentration change of NO2. Firstly, the conditions and parameters of the Gauss plume model are introduced, and the related factors affecting the NO2 diffusion are analyzed. Secondly, the pollution sources are classified into point pollution sources (chimneys) and line pollution sources (automobile exhaust), and combines the yearly weather conditions of Shijiazhuang such as wind speed, wind direction, atmosphere stability etc. Then, simulating the diffusion area and concentration change using Stata 13.1 software platform, we found: (1) The formation of NO2 pollution in Hebei Province is affected by special topography and unfavorable meteorological conditions; (2) The atmospheric stability is basically higher in autumn and winter; (3) Industrial emissions are the main source of NO2 in Hebei Province; (4) The concentration of NO2 pollutants near the emission source is the highest, and the concentration gradually decreases with increasing distance. The conclusion of the study has certain practical significance for the design and implementation of government environmental regulation and effective control and reduction of environmental pollution. The conclusion of the study has certain practical significance for the design and implementation of government environmental regulation and effective control and reduction of environmental pollution.

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