Abstract: This paper divides environmental regulations into three categories: command-and-control environmental regulations, market-based environmental regulations and informal environmental regulations, and further studies the impact of different types of environmental regulations on local environmental governance and heterogeneity . The conclusions show that, on the whole, there is an inverted U-shaped relationship between environmental regulation and local environmental governance, when the intensity of environmental regulation does not exceed the turning point, it can effectively promote local environmental governance, but there are also heterogeneities. It takes some time to see the impact of command-and-control environmental regulations on local environmental governance; the significant impact of market-based environmental regulations on local environmental governance diminishes over lagged time, while the significant impact of informal environmental regulations increases over lagged time. Further analysis shows that: (1) The impact of command-and-control environmental regulations on local environmental governance only exists in areas with poor economic development, whereas the significant impact of informal environmental regulations on local environmental governance only exists in areas with better economic development. (2) After the change of official promotion assessment system, the impact of market-based environmental regulations on local environmental governance becomes weak, while the impact of informal environmental regulations becomes more positive. The conclusions have a strong reference for how to promote local environmental governance and solve environmental problems according to the characteristics of different types of environmental regulations.

Key words: environmental regulations；command-and-control environmental regulations, market-based environmental regulations, informal environmental regulations, local environmental governance