户用沼气池对农村家庭能源消费及其经济效益的影响——江苏涟水与安徽贵池对比研究

Effect on Rural Household Energy Consumption and its Economic Benefit by Household Biogas Digesters:Comparing Between Lianshui County and Guichi County in China

通过对江苏涟水和安徽贵池进行的沼气池使用相关问题人户调查的对比研究，分析了不同地区户用沼气池在家庭能源消费及其经济、环境效益中的差异。研究表明，涟水和贵池农村家庭人均消耗的能源消费有明显的差异，沼气池的建设均使得家庭人均能源消费减少了40％以上，其减少的主要是生物质能源的消费；沼气池的建设并未引起家庭人均有效热的提高；农户建设沼气池有较好的经济效益。问卷调查显示，因沼气池建设给建池户带来的减少医药费开支等5方面的效应每年在100～200元以上，两地区有较大的差异。

Development of household biogas digester in rural area and integrated use of agricultural wastes have changed the structure of natal household energy consumption, greatly increased the application of highly efficient organic fertilizer, improved soil fertility and promoted sustainable agricultural development. This paper mainly discusses the influence of using biogas digesters on household energy consumption in rural areas based on the data from the survey in Liangshui County and Guiehi County. The results showed evident difference in family energy consumption per capita between Lianshui and Guiehi. The construction of biogas digesters has reduced family energy expenses by more than 40%, and benefits the environment greatly. The research also indicates that the biogas digesters has not increased the family effective heat per capita. The average family yearly benefits by use of biogas were around 100 - 200 yuan, wtfich varies in different areas.