## 5 Conclusions and Policy Implications  
The implementation of policy measures oriented toward green agricultural production is an important guarantee to promote the efficient use of agricultural resources and adapt to climate change, and it plays an important role in supporting and guiding farmers. Policy formulation and implementation are generally carried out by government departments and relevant units using a top-down promotion and implementation mechanism. As \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Variables** & **Model (1)** & **Model (2)** & **Model (3)** \\ \hline
**Policy structure** & & & \\ Service policy & 0.421 *** & & 0.319 *** \\  & (0.0742) & & (0.0781) \\ Financial policy & 0.402 *** & & 0.362 *** \\  & (0.0671) & & (0.0718) \\ Technical policy & 0.387 *** & & 0.321 *** \\  & (0.0557) & & (0.0618) \\ Subsidy policy & 0.429 *** & & 0.468 *** \\  & (0.0592) & & (0.0608) \\ Supervision policy & 0.0696 *** & & 0.0139 *** \\  & (0.0531) & & (0.0571) \\
**Policy implementation** & & & \\ Support intensity & & & \\  & & & \\ Support intensity & & & \\  & & & \\  & & & \\  & & & \\ \end{tabular}
\end{table} 
Table 8: The estimation results after sample restriction. \begin{table}
\begin{tabular}{c c c} \hline \hline
**Variables** & **Model (1)** & **Model (2)** & **Model (3)** \\ \hline
**Policy structure** & & & \\ Service policy & 0.820 *** & & 0.609 *** \\  & (0.108) & & (0.114) \\ Financial policy & 0.573 *** & & 0.437 *** \\  & (0.0949) & & (0.104) \\ Technical policy & 0.512 *** & & 0.286 *** \\  & (0.0965) & & (0.107) \\ Subsidy policy & 0.434 *** & & 0.454 *** \\  & (0.0900) & & (0.0916) \\ Supervision policy & 0.379 *** & & 0.183 * \\  & (0.0888) & & (0.0937) \\
**Policy implementation** & & & \\ Support intensity & & & 0.376 *** \\  & & (0.103) & (0.111) \\ Degree of promotion & & & \\  & & & \\ Degree of promotion & & & \\  & & & \\  & & & \\  & & & \\  & & & \\ \end{tabular} Notes: ***, *** Statistically significant at 10%, 5%, 1% levels, respectively.  
\end{table} 
Table 9: The estimation results after changing the values of core variables. the ultimate subject of agricultural policies, the exploration of farmers' satisfaction with GPPs and the related impact mechanisms can aid in understanding the obstacles and effects of policy implementation on improving the policy system. In this study, micro survey data from 1180 farmers in Anhui Province, China, in 2021 were used to analyze the impacts of policy structure and policy implementation on the satisfaction of farmers with GPPs. It was found that policy structure can affect the satisfaction of farmers with GPPs. There were differences in the impacts of agricultural service, financial, technical, subsidy, and supervision policies on the satisfaction of farmers with GPPs. The results indicated that positive evaluations from farmers of policy implementation can help improve their satisfaction with GPPs. Differences were also found in the effectiveness of evaluating the support intensity, degree of promotion, policy sustainability, and implementation effect in the improvement of farmers' satisfaction with GPPs. After replacing the core independent variable, restricting the sample, and changing the value of the core variable, the conclusions were found to remain robust. Further mechanism analysis revealed that the impact of policy structure on farmers' satisfaction with GPPs was transmitted through the path of policy implementation evaluation. The heterogeneity analysis demonstrated that the impacts of policy structure and policy implementation on the satisfaction of farmers with GPPs were heterogeneous in terms of the gender, age, and education of farmers. Based on the main research conclusions, some policy implications are put forward. First, there remain certain policy gaps and errors in the specific practice and implementation process, especially regarding the lack of practical support and compensation for farmers in the implementation of GPPs.