## 2 Literature Review
### Review of the Literature on Ecological and Environmental Development
integrated the coupled coordination model and the panel vector autoregressive model to explore the dynamic relationship between the two systems [43]. It has been determined that technological innovation exerts a substantial and favorable influence on the ecological environment. There is a particular collaborative development relationship between the two. [PERSON] et al. used a spatial econometric model and a threshold regression model to conduct an empirical evaluation of the relationship between energy technology innovation and total factor ecological efficiency and obtained a significant spatial positive correlation, showing a spatial geographical distribution with similar characteristics [44]. (2) Research has been carried out on the interplay between the growth of the ecological environment and technological innovation, as well as examining the potential effects on other subsystems. [PERSON] investigated the impact of the technological creativity and ecological environment coordinated development level on the growth of a green economy using the panel vector autoregressive model, linked coordination model, and entropy weight technique [45]. The findings of the study indicate that the coordinated development level of the ecological environment and technological advancement exhibits a delayed effect on the green economy, ultimately yielding positive outcomes. [PERSON] et al. employed the coupled coordination model and gray correlation analysis to examine the degree of coordination among three systems and the factors that influence system development [46]. The authors highlighted the significant strategic role of environmental regulation and technological advances in promoting sustainable growth. [PERSON] et al. conducted a scientific analysis to determine and evaluate the interplay between the three systems of technological innovation, economic growth, and ecological environment in the urban agglomeration of the Yangtze River Delta [47]. The researchers employed various analytical tools, including the entropy method, coupling coordination model, spatial gravity center model, and GM (1, 1) gray forecasting model, to accurately calculate and assess this relationship. The research indicates that the distribution of the spatiotemporal coupling coordination level among Chinese cities is spatially uneven. Furthermore, it is projected that the overall spatiotemporal coupling coordination level will continue to rise in the future. However, it is expected that certain cities will experience a decline in their coupling coordination level, resulting in an imbalance. Judging from the existing research results, the research mentioned above provides crucial theoretical support for the coupling and coordinated development of technological innovation and ecological environment development and the study of spatial pattern distribution. However, most of the research content comprises unilateral studies of the relationship between the two, the impact of regional economic development on the coupling coordination relationship, or consists of detailed research on the three subsystems. The research scope is mainly focused on the national level or specific provincial panel data. The research perspective is mostly about combining technological innovation and the economy or the ecological environment and economy. Few scholars focus on the coordination between technological innovation and ecological environment development by predicting the relationship between the two from a spatiotemporal perspective; research methods mostly use data envelopment models and coupling coordination models to evaluate regional technological innovation capabilities and ecological environment development comprehensively and rarely combine multiple methods to evaluate the two subsystems and analyze the relationship between them.