Study On Determinants Of Biogas Engineering Development In Large-scale Pig Farms

Pig industry is the advantage of China's rural economy industries,and large-scalepig farms have become the main entity in pig-producing areas.However,withrealizing the intensive economic advantages,large-scale pig-raising brought aboutserious environmental pollution problems.Biogas engineering is the most importantsolutions to control the pollution of pig farms waste.With the development of gasengineerings,large-scale farms can not only control pollution,but also can achievecertain economic benefits.By-products generated by the gas engineering,biogas,liquidsqueezings from biogas engineering have good economic application.Because biogasengineering having energy efficiency,ecological benefits and economic benefits andother relatively good Comprehensive benefits,biogas engineering has become theimportant measure of strengthening environmental governance in countrysidel areas,and an important means of promoting the building of new socialist countryside.At allclasses of government are actively encouraging and promoting biogas engineeringdevelopment in large-scale pig farms.In practice,however,the degree of developmentof biogas engineerings in large-scale pig farms in China was verylow.Therefore,theoretical analysis and empirical research of the factors affecting thedevelopment level of biogas engineering in large-scale pig farms is made to find thekey factors which influence biogas engineering development in large-scale pig farmsof China.Its results can provide the decision-making basis for governmentdepartments to formulate the development policies for biogas engineering and find thestrategy for pollution control.It has an important practical significance in building anew socialist countryside and in the sustainable,healthy development of the pigfarming industry.In this paper,I used externality theory,information asymmetric theory andbehavioral decision theory as a guide,made a large number of practical research andin-depth theoretical analysis of biogas engineering development in large-scale pigfarms by questionnaire survey and exemple study,and used multiple regressionanalysis method in empirical research of the factors affecting biogas engineeringdevelopment in large-scale pig farms to identify the key factors of promoting itsdevelopment,and see it as a opportunity to put forward a set of scientifical,feasiblepolicy support system to advance biogas engineering development in Iarge-scale pigfarms.Logically,the thesis is divided into six parts,and is divided into nine chapters in the form.The first part is the overall introduction,including Chapter I of introduction andChapter II of literature review,which mainly on the research background,researchsignificance,research technique,research methods,study characteristics and possibleinnovations as well as the literature review.The second part is ChapterⅢ,analyzing mainly the development status ofbiogas engineerings in Fujian Province.Firstly,this section analyzes the developmentpig industry of Fujian Province,and then introduced the pollution status and solutionmodel of the large-scale pig farms in Fujian Province.Secondly,this section analyzesthe necessity and feasibility of developing the biogas engineering in large-scale pigfarms in Fujian Province.Finally,this section makes a brief introduces on thedevelopment of biogas engineerings in Fujian Province.After analyzing I found that:large-scale pig production has become an important pig production model for FujianProvince.But,there is still no effective treatment for the pollution problems causedby pig-raising.Fujian Province has suitable climatic conditions and adequate resourcepotential for developing the biogas engineerings.While,Fujian Province is anenergy-poor province,which makes large-scale pig farms biogas engineering inFujian Province being necessity and feasibility.Although,from the new century,large-scale pig farms biogas engineering in Fujian Province has been growing rapidly,but is still in low levels on the total quantity,large-scale pig farms biogas engineeringin Fujian is still in a relatively low degree of development.The third part includes the fourth chapter,Mainly making the technical andeconomic analysis on biogas engineering development in large-scale pig farms.Firstly,it introduces two technology models of biogas engineering in large-scale pigfarms.Then,it takes Jianou Kin Wah Co.,Ltd.Qingzhou pig farm for the exempleconducting a technical and economic analysis of large-scale pig farms biogasengineerings.The result shows that:as the utilization rate of a by-product of the biogasengineering (biogas,liquid squeezings from biogas engineering) is 100% and annualsewage fines can be reduced,even without government subsidies,large-scale pigfarms build biogas engineerings having economic benefits.Therefore,in JianhuaJianou Co,Ltd.Qingzhou pig farm's case,biogas engineering development inlarge-scale pig farms is feasible in technologically and economically.The resulit of thesensitivity analysis of the engineering shows that:the amount of government subsidyand the extent of the comprehensive utilization of biogas and methane may be the important factors which affect the investment decisions for developing the biogasengineerings of large-scale pig farms.The fourth part is theoretical analysis and empirical researches of the impactfactor of biogas engineering development in large-scale pig farms,including paper'sChaptersⅤand ChaptersⅥ.ChapterⅤfocuses on the theoretical analysis of factors affevting thedevelopment of biogas engineering in large-scale pig farms and data sources.Thispaper analyzes the decision-making of investing the biogas engineerings oflarge-scale pig farms based on economic man assumption,externality theory,information asymmetry theory and behavioral decision theory.This article holds that alarge-scale pig farm is an economic man who pursuits the maximizing interests andthe pollution problem of large-scale pig farms is closely related to its profit-drivenbehavior.This paper established the theoretical analysis framework of biogasengineering of large-scale pig farms based on which the capital cost of biogasengineering,the utilization level of by-products (biogas,liquid and squeezings frombiogas engineering),government subsidy,the effectiveness of regulatory authorities,the owner's personal characteristics,the geographical characteristics and other factorsaffect the development degree of biogas engineering in large-scale pig farms.ChapterⅥis a empirical study of factors influencing biogas engineeringdevelopment in large-scale pig farms.At first,this chapter selects a empirical model ofthe factors affecting biogas engineering development in large-scale pig farms,listsspecific definition of these factors and explains this factors' expected workingdirection for the explainded variable.Then,I made a multiple regression analysis thefactors affecting the development of biogas engineering in large-scale pig farms byusing SPSS17.0 software,which shows that:gas utilization and government subsidy issignificant,the per GDP of the location of pig farms and the closet distance betweenpig farms with the Village Department is significant,pig scale is relatively moresignificant;with the comparison of the size of five significant factors affecting thedevelopment degree of biogas engineering in large-scale pig farms,biogasutilization＞government subsidy＞per GDP＞closest distance to Village Department＞the scale of pig.Some of the variables in theoretical model,such as the supervision ofenvironmental protection departments,gas service system,utilization of liquid frombiogas engineering,of the closet distance with the stream education characteristics offarms owners,and so on,are not affected significantly on biogas engineering development in large-scale pig farms.Finally,I explained and discussed on theregression results.The fifth part studies the policy of developing the biogas engineering oflarge-scale pig farms,including ChapterⅦand ChapterⅧ.ChapterⅦcompares the domestic and foreign development policy of thelarge-scale pig farms biogas engineering.This part of paper sees the United States,theEuropean Union,,Japan and other countries with higher levels of development ofbiogas engineerings as comparing objects,and making a deep comparative analysis onthe related policies of biogas engineering development in China's with them on legalpolicy,fiscal policy,tax policy,financial policy and science and technology policy,and finds the inadequate of policies of biogas engineering of large-scale pig farms inChina,and summarizes up three experiences from foreign policy:improving therelated laws system on biogas engineering development as well as strengthening lawenforcement;strengthening the financial,monetary and taxical policy and othereconomic policies' investment leverage;consummating policies of generatingelectricity by biogas to encourage in generating electricity by biogas.ChapterⅧis the protection policy which promoted the development of biogasengineering of large-scale pig farms in China.Combining the conclusions of theformer empirical analysis and experiences learned from the foreign policies.Inaccordance with China's national conditions and the development status of gasengineerings,this part of the paper puts forward contrarily the security policy systemfor promoting biogas engineering development in large-scale pig farms.Mainlyincluding:strengthening financial support and adjusting the way of financial subsidy;perfecting gas service system;enhancing the capacity of gas-related technologicalinnovation;improving relevant laws and regulations;strengthening the enforcementof environmental protection departments;building a diversified financing mechanism.PartⅥis the ninth chapter,mainly on the study's conclusion,study's shortageand study's prospect.