Study On Cleaner Production Behavior Of Large-scale Pig Farms

China is the world's largest producer and consumer of pork.The increasing scale of pig breeding has played an important role in reducing farming costs,avoiding market risks and improving pork quality,but it also brought serious environmental pollution,which not only reduced the quality of human settlements,but also poses a threat to the breeding itself.Due to current technical,financial and land restrictions,simply relying on end treatment can not solve the contradiction between the continuous expansion of the scale of cultivation and the pollution and environmental carrying capacity.Therefore,the whole process of clean production from the source to the end is an effective way to fundamentally solve the environmental pollution of pig scale farming.Based on the current status of China's pig breeding,in order to make the scale of pig farmers transition from traditional farming methods to cleaner production,the following problems need to be solved: What is the current status of cleaner production behavior of large-scale pig farmers,what are the factors affecting the clean production behavior of large-scale pig farms and their mechanisms of action,what is the formation mechanism of cleaner production behavior,how the clean production behavior evolves,and how to promote the formation and evolution of clean production behavior of large-scale pig farmers.In view of the above problems,this paper draws on the existing research results,based on behavioral economics theory,dissipative structure theory,etc.Using descriptive analysis,structural equation model,two-population evolutionary game model and numerical simulation,From the aspects of concept definition,current situation description,influencing factors,formation mechanism,evolution mechanism and countermeasures,the related problems of the formation and evolution mechanism of clean pig production behavior of large-scale pig farmers are studied in depth.The main findings are as follows:Concept definition and theoretical elaboration are the research basis of this thesis.Through the definition and interpretation of the concepts and main theories of the cleaner production behavior of large-scale pig farmers,this paper comprehensively grasps the research objects and contents,research shows: The cleaner production behavior of large-scale pig farms is based on cognition,with the idea of open system as the driving force to reduce the pollution of breeding environment and increase the income of farming.Through continuous dynamic evolution,the scale of pig farms' behavioral process is finally produced.The current status of clean production behavior of large-scale pig farms is the realistic basis of this paper.Using the field survey data of 729 large-scale pig farms nationwide,using descriptive statistical analysis,the current situation of cleaner production behavior of large-scale pig farms was analyzed and concluded: The perceived level of cleaner production of pig farmers in the survey affected the implementation of their behavior to a certain extent.In source prevention,respondents have good knowledge of the prevention of waste generation in other inputs other than veterinary drugs,and the implementation behavior was better;In the process control,the large-scale pig farmers surveyed lacked awareness of the reduction of waste in clean production,and failed to effectively reduce and harmless behaviors.In the terminal treatment,the level of awareness of waste treatment to reduce environmental pollution was low,if there was no environmental regulation,the end treatment behavior was not standardized.The empirical study on the factors affecting the cleaner production behavior of large-scale pig farmers is the focus of this paper.Based on the theory of planned behavior,the structural equation model is used to verify the influencing factors and mechanism of the cleaner production behavior of large-scale pig farmers.Come to the conclusion: The cleaner production attitude,including attitudes towards the implementation of cleaner production behavior and expectations of cleaner production behavior;Endowment characteristics,including the age of the pig farm,the number of years of schooling and the amount of pig production;External norms of large-scale pig farmers,including the government's support for cleaner production and the requirements of cooperative organizations,have a positive impact on the awareness of cleaner production of large-scale pig farmers,and have an indirect positive impact on behavior;The awareness of cleaner production in large-scale pig farms has a significant positive impact on source prevention(including purchase of breeding pigs,feed,veterinary drugs,etc.),process control(including veterinary drug withdrawal period setting,site cleaning method,disinfection frequency),and terminal treatment(including faecal treatment,fecal management,and sick pig treatment)behavior.The mechanism of action is as follows: the cleaner production behavior of large-scale pig farm households is subject to the cognitive level,and the cognitive level is the result of the interaction of behavioral subject attitudes,external norms and the subject's own endowment characteristics.The analysis of the formation mechanism of the cleaner production behavior of large-scale pig farms is one of the key points in this paper.This paper analyzes the formation of cleaner production behavior of large-scale pig farmers from five aspects: dynamic mechanism,transmission mechanism,guarantee mechanism,promotion mechanism and implementation mechanism.The results show: The formation of cleaner production behavior of large-scale pig farms is under the conditions of the guarantee mechanism and the promotion mechanism,In order to increase the income of self-breeding and avoid the punishment brought by environmental protection and high pressure,it is the driving force of the disease.Through the information transmission,the improvement of self-awareness level and the guidance of unified industry standards,the scale pig farmers can make rational choices,promote it to improve the level of cleaner production,and thus to reduce the pollution of farming,increase the income of farming,and ultimately achieve cleaner production behavior.The evolution mechanism of cleaner production behavior of large-scale pig farms is the second key of this paper.According to the conclusion of the formation mechanism analysis,considering the interaction between government supervision and cleaner production behavior of large-scale pig farmers,the evolution mechanism of cleaner production behavior of large-scale pig farmers was studied by constructing a dual population evolution model.The results showed that the input cost,subsidy coefficient and supervision coefficient of clean production affect the evolution direction,process and stability strategy of clean pig production behavior.Assign values to fixed parameters in the model,the simulation simulates the impact of parameter changes on the evolution of the stable point of the cleaner production behavior strategy.Based on the above research conclusions,the countermeasures and suggestions for promoting the evolution of cleaner production behavior in pig breeding are proposed,including: Strengthen the guidance of external norms and self-behavior,and raise the awareness level of clean production of large-scale pig farmers;Balance financial support,increase technical support,improve industry standards,and build multiple management to ensure the formation of cleaner production practices;Increase the participation of pig farmers in the scale,promote the establishment of cleaner product intermediaries,strengthen the market guidance of cleaning products,and improve the market mechanism of cleaner production behavior;Strengthening process-wide supervision and inter-departmental supervision in order to regulate the formation of cleaner production behavior.