| 英文摘要 | As the decision-maker of agricultural production, whether farmers' production behavior can change to "green" will determine the trend of green agricultural development. Green production behavior of farmers is the key to improve the quality of agricultural products and reduce agricultural pollution. In this context, in-depth analysis of the driving mechanism of farmers' green production behavior is an important proposition to solve the agricultural ecological environment problems, improve the quality of agricultural products and the level of sustainable agricultural development. At the same time, information economics theory and behavioral economics both show that farmers are not the actors who can carry out green production on their own, and service scale operation and division of labor transaction should become an important logic of agricultural green development. The development of agricultural socialized services is an efficient development that has injected technology, machinery and equipment, talents, information and other modern production factors. It has become an important way to make up for the negative effects of farmers' own limitations on agricultural green development.
Based on the theory of professional division of labor, farmer behavior theory, technology spillover effect theory and scale economy theory, this study takes the mechanism and effect of agricultural socialized service promoting farmers' green production behavior as the research object. First, it defines the relevant concepts of farmers' green production behavior and agricultural socialized service, Based on the production intensification and the transmission of human knowledge capital, this paper expounds the theoretical logic of the impact of social services on the green production behavior of farmers. Secondly, using 795 micro survey data of farmers in Gansu Province, this paper makes a descriptive statistical analysis of the status quo of farmers' participation in socialized services and the characteristics of farmers' green production behavior, builds an evaluation index system of farmers' green production behavior, and measures it with entropy method. On the basis of sorting out the status quo, using actual research data, empirical analysis is conducted to explore the influencing factors of farmers' participation in socialized services and the promotion effect of overall participation in socialized services on farmers' green production behavior. Finally, on the basis of overcoming endogeneity, this paper uses the propensity score matching method (PSM) to test the promotion effect of different types of socialized services on farmers' green production behavior and their differences among groups. The results show that:（1）The development level of agricultural socialized services in the sample areas still has some room for improvement, and the farmers' participation in socialized services is characterized by low overall participation ratio, incomplete service types, and different service participation ratios.（2）The overall level of green production behavior of farmers in the sample area is not high. From the perspective of green production behavior in different dimensions, the level of green farmland management behavior of farmers is the highest, followed by the level of green resource utilization behavior, and the level of green technology adoption behavior is the lowest.（3）The influencing factors of farmers' participation in different types of socialized services are different. Among them, the cadre identity and rural cooperatives have played a significant positive role in farmers' participation in pre production, mid production and post production socialized services.（4）The participation of overall socialized services significantly promotes farmers to adopt green production behavior.（5）After eliminating the possible endogenous problems, different types of socialized services before, during and after production have a significant positive effect on farmers' green production behavior. Among them, the average treatment effect of in-process socialized services is relatively large, while the average treatment effect of prenatal socialized services and post natal socialized services is relatively small.
Based on the above research conclusions, in order to give better play to the promotion effect of agricultural socialized services on farmers' green production behavior, first, we should improve the participation mechanism of farmers' socialized services, enhance farmers' willingness to participate in socialized services, fully consider the individual differences of farmers, and explore the coordinated development of different service modes according to local conditions and time conditions according to the actual needs of farmers, so as to promote the comprehensive construction of socialized services. Second, it is necessary to establish a service evaluation standard system and a supervision mechanism, improve the service quality, focus on improving the service quality level of weak links such as pesticide application service, fertilization service, breeding service, strengthen the internal management of services, establish service treaties, improve the fund investment guarantee mechanism, and strengthen the economic foundation of socialized service organizations. Third, improve the agricultural socialized service system, and promote the transformation and upgrading of agricultural production and high-quality agricultural development. Establish a complete agricultural socialized service system, introduce green production technologies, professional technicians, and advanced green management concepts into agricultural production, and fully release the role of socialized services in promoting green production behavior of farmers.
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