Sustainability Assessment of Marine Economy in China: Spatial Distributions of Marine Environmental Governance Entities in Shanghai

The amount of investment in marine environmental governance (MEG) is growing fast China, which brought the prosperity treatment entities (e.g., water enterprises and port pollution control institutions). Based on spatial big data, this paper adopted kernel density method, standard deviational ellipse, nearest neighbor index to explore distribution pattern MEG Shanghai from 2005 2021. Several conclusions emerged study: (1) From 2021, new have increased by more than 10 times; (2) analysis showed that Shanghai’s was larger 0.2, with Z values all being lower −30, indicating agglomeration characteristics significant at an alpha level 1%. (3) Chongming District, Pudong New Fengxian Minhang District were core areas. (4) ellipse suggested 2021 obvious spreading center both north south. This results industrial belt along Huangpu River. argues confirms central place theory, highlights network combine centrality surrounding