Influence of college students' gender on garbage sorting behavior

As a new force of social and economic development, environmental protection behaviors such as garbage sorting of college students play an important role in improving the effectiveness of environmental governance in the whole society. Based on the planned behavior theory and the "knowledge-belief-action" model, this paper constructs a mechanism model of college students' willingness to classify waste, conducts a questionnaire survey on their willingness to classify waste in Nanjing, discusses the key factors influencing their willingness to classify waste by using structural equation model, discusses the differences of key factors among different types of universities through difference test, and discusses the differences of gender, facilities and service system through multiple groups of analysis. The results show that: (1) environmental cognition will indirectly affect college students' willingness to classify garbage through behavior attitude and perceived behavior control; (2) Behavioral attitude and perceived behavioral control have a significant impact on college students' willingness to classify garbage, while subjective norms have no significant impact; (3) Students' willingness to classify garbage is heterogeneous, which is manifested in key universities in general colleges of higher vocational colleges; (4) Gender differences significantly affect the willingness to classify garbage, and girls are more susceptible to subjective norms, while boys are more susceptible to perceptual behavior control; (5) There is no significant difference in the influence of advanced or backward facilities and service systems on the willingness to classify garbage. Based on this, this paper puts forward some countermeasures and suggestions to enhance the willingness of college students to classify garbage, in order to provide decision-making reference for cultivating college students' environmental protection behavior and promoting the classification management of domestic garbage in colleges and universities.