Spatial-temporal characteristics of port infrastructures on sulfur-oxide concentrations of coastal port in China

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY Ocean & Coastal Management Pub Date : 2024-10-02 DOI:10.1016/j.ocecoaman.2024.107399

Lang Xu , Jiyuan Wu , Qingfeng Zhao , Jihong Chen , Jutong Liu , Fangren Gao , Xiaorui Liu , Jianghao Xu

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Abstract

Port infrastructure is an important guarantee to support the development of shipping trade and a main link to connect shipping routes, where its construction and expansion promote economic progress whereas exacerbating regional pollution. Based on the panel data of 18 above-scale coastal ports in China from 2005 to 2020, the spatial characteristics and correlation of sulfur-oxide (SO_X) concentrations are first analyzed, then the spatial Durbin model (SDM) is established to evaluate the extent of port infrastructure's impact on the concentrations, further the intermediation effects of three dimensions on the concentrations are explored. From the outcome, the influences of port infrastructures on the SO_X concentrations are from decreasing the SO_X concentrations through improving the operational efficiencies and increasing the SO_X concentrations by adding the operational equipment, which also shows significant spatial spillover effects. In addition, the mechanical dimension as a mediation makes the trade dimension have an indirect effect on the SO_X concentrations. This paper employs a spatial econometric model to analyze panel data from 18 coastal ports and ports of higher tiers in China, spanning from 2005 to 2020. It uncovers the intricate mechanism by which port infrastructure influences SO_X concentration, thus providing a scientific foundation and decision support for environmental protection and sustainable port development.

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港口基础设施对中国沿海港口氧化硫浓度的时空影响特征

港口基础设施是支持航运贸易发展的重要保障，也是连接航线的主要纽带，其建设和扩建在促进经济发展的同时，也加剧了区域污染。基于 2005-2020 年中国 18 个规模以上沿海港口的面板数据，首先分析了一氧化硫（SOX）浓度的空间特征和相关性，然后建立了空间杜宾模型（SDM）来评估港口基础设施对浓度的影响程度，并进一步探讨了三个维度对浓度的中介效应。从结果来看，港口基础设施对 SOX 浓度的影响是通过提高作业效率降低 SOX 浓度，以及通过增加作业设备提高 SOX 浓度，这也显示出显著的空间溢出效应。此外，机械维度作为中介，使得贸易维度对 SOX 浓度产生间接影响。本文采用空间计量经济模型，分析了 2005 年至 2020 年中国 18 个沿海港口和上级港口的面板数据。它揭示了港口基础设施影响 SOX 浓度的复杂机制，从而为环境保护和港口可持续发展提供了科学依据和决策支持。

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来源期刊

Ocean & Coastal Management 环境科学-海洋学

CiteScore

8.50

自引率

15.20%

发文量

321

审稿时长

60 days

期刊介绍： Ocean & Coastal Management is the leading international journal dedicated to the study of all aspects of ocean and coastal management from the global to local levels. We publish rigorously peer-reviewed manuscripts from all disciplines, and inter-/trans-disciplinary and co-designed research, but all submissions must make clear the relevance to management and/or governance issues relevant to the sustainable development and conservation of oceans and coasts. Comparative studies (from sub-national to trans-national cases, and other management / policy arenas) are encouraged, as are studies that critically assess current management practices and governance approaches. Submissions involving robust analysis, development of theory, and improvement of management practice are especially welcome.