Research On Impact Mechanism Of Fully Utilizing The Rural Household Biogas Digester In Jiangxi Province

With the development of breeding industry, the emissions of animal excrementhas becomed more and more, but most of the animal excrement was treated in theimproper way and becomed serious environmental pollution. Household biogasdigester is a tool which can ferment animal excrement, produce a kind of clean andrenewable energy named biogas. Not only can it solve the problem of environmentalpollution, but also it can solve the problem of rural energy shortage. But ruralhousehold biogas digester is lack of use at present. It mainly embodied in thefollowing three aspects: gas production is insufficient in a single household biogasdigester, users with fewer number of household biogas digester and theunder-utilization of biogas manure. What are the reasons? And what can we do toimprove the situation? So I think there are theoretical significance and practicalsignificance.Based on the investigation through questionnaire on the spot in Wangjia village,De’an County, Jiangxi Province, do correlation analysis and logistic regression of theresult of questionnaire by using SPSS software, then identity the main influencefactors affecting fully utilizing household biogas digester. The main influence factorsinclude annual household income, environmental awareness of head of the household,awareness of household biogas digester, quality of household biogas digester and theparts and evaluation of farmers who have been used household biogas digester, etc.On this basis, built a system dynamics model of fully utilizing household biogasdigester in SD Rate Variable Fundamental in-Tree Model. Through the systemarchetype analysis of minimum archetypes genaration set, we can get influenceapproach of main influence factors. Influence approach includes direct effects,indirect effects,and the influence of system.Based on system archetype analysis, we got the specific countermeasures, whichinclude: first, increase the funds, technology and professional support fromgovernment on the process of using and maintaining rural household biogas digester.Second, perfecting the social service system and establishing special service stationfor repair and maintenance. Lastly, to carry out activities for preaching theprofessional knowledge of fully utilizing household biogas digester, and enhancefarmers’ environmental awareness, ect.