中国海洋大学学报(社会科学版)

环境规制是改善生态环境、推动旅游业绿色转型的关键政策工具。基于2011—2023年中国54个沿海城市的面板数据，在识别环境规制与旅游绿色发展效率时空格局的基础上，系统分析环境规制对旅游绿色发展效率的影响及作用机制。研究结果表明：中国沿海地区环境规制与旅游绿色发展效率呈现较为明显的协同演进特征；环境规制能够显著促进旅游绿色发展效率的提升，该结论在经过一系列稳健性检验和内生性处理后依然成立；环境规制通过产业结构优化与技术创新两条路径间接提升旅游绿色发展效率；环境规制对旅游绿色发展效率的影响并非线性，其效应受到产业结构优化与技术创新的制约，两者均存在单门槛效应；环境规制的促进作用在南部沿海地区和北部沿海地区尤为显著，在东部沿海地区不显著。本研究为理解环境规制在旅游业绿色转型中的复杂角色提供经验证据，并对制定差异化的区域环境政策具有启示意义。

Environmental regulation serves as a pivotal policy tool for improving the ecological environment and promoting the green transformation of the tourism industry. Based on panel data from 54 coastal cities in China from 2011 to 2023, this study systematically analyzes the impact and mechanisms of environmental regulation on tourism green development efficiency by identifying the spatiotemporal patterns of environmental regulation and tourism green development efficiency. The findings reveal that environmental regulation and tourism green development efficiency in China′s coastal regions exhibit a relatively pronounced pattern of synergistic evolution. Environmental regulation significantly enhances tourism green development efficiency, and this conclusion remains valid after a series of robustness tests and endogeneity treatments. Environmental regulation indirectly improves tourism green development efficiency through two pathways: industrial structure optimization and technological innovation. The effect of environmental regulation on tourism green development efficiency is nonlinear and is constrained by industrial structure optimization and technological innovation, both of which exhibit single-threshold effects. The promoting effect of environmental regulation is particularly significant in the southern and northern coastal regions, but not in the eastern coastal regions. This study provides empirical evidence for understanding the complex role of environmental regulation in the green transformation of the tourism industry and offers insights for formulating differentiated regional environmental policies.