"全球—地方"互动视角下珠三角地区环境治理的时空演变及作用机制OA

In the context of ecological civilization construction and high-quality development,exploring the mechanisms of local environmental governance transformation under globalization is of substantial academic significance for understanding regional sustainable development.Existing studies on environmental governance in the Pearl River Delta(PRD)have mainly examined the driving forces from a single perspective,such as economic development,industrial structure,and globalization.However,relatively limited attention has been paid to identifying the hierarchical roles and evolutionary dynamics of multiple factors from a multi-scalar interaction perspective,particularly the intermediary roles of institutional spillovers from Hong Kong and Macao in regional governance.To address this gap,this study develops an analytical framework of"globalization input-local response-environmental governance"from the perspective of the geography of sustainability transitions.Using the GeoDetector method,this study systematically examined the spatiotemporal evolution of environmental regulation intensity and its driving mechanisms across nine cities in the PRD from 1990 to 2018.The main findings are as follows.First,environmental regulation intensity in the PRD has increased continuously over time,exhibiting distinct stage-based transitions and forming a spatial gradient centered on highly open cities such as Shenzhen and Guangzhou.Second,the driving forces of local environmental governance evolved from an endogenous,development-driven stage dominated by economic growth and urbanization to a multi-scalar governance mode characterized by interactions between globalization inputs and local institutional responses.Lastly,institutional opening channels play a critical bridging role in governance transition.In particular,the number of first-class ports demonstrates the strongest explanatory power,indicating that global environmental rules and governance concepts are primarily embedded in local governance systems through institutional channels of opening.Under the influence of Hong Kong's and Macao's institutional spillovers,these processes further promote local institutional innovation and improve governance capacity.This study suggests that,in highly open regions,environmental governance transformation is driven jointly by global rule diffusion,local institutional absorption,and cross-jurisdictional institutional interactions.By revealing the evolutionary mechanisms of environmental governance from a multi-scalar interaction perspective,this study extends the explanatory power of the geography of sustainability transitions in the context of cross-border institutional interactions and regional institutional diversity.It provides new theoretical insights and empirical evidence for understanding environmental governance transformation in open regions.