proposed that the effects of coastal urbanization on the water quality of coastal waters depend on the stage of economic development. The pollution generated by urbanization affects the quality of coastal waters through river input, urban runoff, and port discharge. The rapid urbanization of coastal cities is another important factor. The pollution caused by coastal tourism is mainly litter pollution. Their results show that the development of coastal tourism has produced serious marine pollution, which then affects water quality. In addition to investigating the impact of the marine economy on coastal marine pollution from the perspective of the total marine economy, there are studies that have focused on coastal tourism and examined its impact on marine pollution. Results show a non-linear relationship between marine economic growth and coastal marine pollution. Some studies have focused on the impact of the marine economy on coastal marine pollution. Thus far, existing studies have investigated the impacts of coastal cities’ economic development on coastal pollution from different perspectives. Given the current status of coastal environmental governance, it is particularly important to identify the conflict between coastal local governments’ policies in promoting economic growth and coastal environmental protection. The chemical oxygen demand and ammonia nitrogen concentration of the seepage water reached the highest levels at 23,800 mg/L and 175 mg/L, respectively hence, the quality of the coastal waters of the Jiaojiang River in Taizhou City has been consistently below Grade IV throughout the years. For example, due to inadequate supervision, various chemical enterprises near the Jiaojiang River in Taizhou City secretly discharged wastewater, causing groundwater pollution and seepage through the embankment. Since then, the situation of coastal water environmental governance has been improved to some extent, but there are still some coastal local governments that only consider economic growth and ignore marine environmental protection. In recent years, the central government has strengthened the supervision of local governments’ coastal water environmental governance through the establishment of a central environmental protection inspector. Due to the emphasis on the assessment of economic indicators, coastal local governments tend to sacrifice the coastal water environment to ensure economic growth in cases when local economic growth and coastal marine environmental protection face conflicts. However, these cities often have economic assessment goals that dominate the evaluation of officials who are up for promotion. China’s coastal marine environmental protection mainly relies on coastal cities. Among 61 coastal cities, the water quality of coastal waters in 17 cities is poor or extremely poor, and 16 out of 44 bays with an area of over 100 km 2 are classified as having water quality below Grade IV. In China’s coastal waters, 18.7% of the water quality of 417 monitoring points cannot be directly affected by humans, because of their Grade IV or lower classification. Specifically, the expansion of such areas from a coastal city can increase the marine pollution of other coastal cities.Ĭoastal areas represent the intersection between marine and land ecosystems, as they are the marine area closest to human activities and often face more serious pollution than other sea areas. Furthermore, the two-lagged industrial land conveyance areas have a spatial spillover effect on coastal marine pollution. Meanwhile, the positive impacts of the two-lagged industrial land conveyance and the industrial land conveyance areas, through bidding, auction, and listing, on coastal marine pollution are statistically significant but economically insignificant. Results show that the expansion of two-lagged agreement-based industrial land conveyance areas in a coastal city can increase coastal marine pollution. Using panel data collected from 45 coastal cities during the period 2007–2017, this study constructed a spatial Durbin model to investigate the effects of industrial land conveyance on coastal marine pollution. Among the economic activities in coastal areas, industrial land conveyance not only has a profound impact on local economic growth, but also poses a greater threat to coastal water. Unfortunately, they also have the greatest impact on the coastal environment. Compared to inland areas, coastal areas display more frequent economic activity in China.
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