Study on the coupling and coordination relationship between ecological environment and economic development in Heyuan City

Quantitative research on the coordination between ecological environment and economic development is of great significance to the realization of the goal of sustainable development. Taking Heyuan City as the research object, this paper constructs the indicator system of ecological environment and economic development, selects the relevant indicator data of ecological environment and economic development of Heyuan City from 2005 to 2021, establishes the coupling coordination degree model, and conducts an empirical analysis of the relationship between the ecological environment and economic development of Heyuan City. The research shows that the coupling degree between the ecological environment and economic development of Heyuan City has been at a high level during the period from 2005 to 2021, and the overall coupling coordination degree has been steadily rising, and has gone through various stages from barely coordinated to high-quality coordinated development; The economic development of Heyuan City has also developed from lagging behind the ecological environment to the synchronous development of both.