有沼气池农户与无沼气池农户家庭能源消费结构比较与发展趋势研究

Energy-consuming Structure of Rural Family with and without Biogas Digester and Developing Tendency

本文利用层次分析法，分析、比较有沼气池农户、无沼气池农户家庭能源消费结构及发展趋势，得出结论：有沼气池农户、无沼气池农户家庭能源消费结构存在较大差异，有沼气池农户家庭能源消费中生物能、商品能、沼气所占比例分别为12．2％～20．6％，49％～64．1％，23．7％～29．5％，无沼气池农户家庭能源消费中生物能、商品能所占比例分别为16．4％～30．8％，69．2％～83．7％，有沼气池农户中沼气部分地取代了商品能消费，商品能的需求较无沼气池农户减少大约20％左右，同时随着收入水平的提高，有沼气池农户、无沼气池农户家庭生活用能中生物能比例不断减少，商品能比例不断增加；收入在4000元以下的有沼气池农户在选择家用能源时，将优先选择户用沼气，通过使用沼气，农户消费的生物能、商品能的比例明显下降；随着沼气技术的进一步发展，农户商品能的使用量将下降70％以上。

Tiffs article studies and compares energy-eonsuming structure of rural family with and without biogas digester via level analytic method. The result showed that the energy consuming structure of the two kinds of family differs strongly. The former mainly uses the bio-energy（firewood and crop stalk）, commercial energy and biogas, which accounts for 12.2% -20.6% ,49. 9% - 64.1% ,23.7% - 29.5% respectively. And the later uses mainly the bio-energy and commercial energy, which accounts for 16.4% - 30.8% ,69.2% - 83.7% respectively. The family with biogas digester reduces the commercial energy consuming by about 20% in comparing with the fanfily without biogas. Along with the social economic development, the bio-energy proportion is decreasing and commercial energy is increasing. With the further development of the biogas technology, the biogas utility, proportion will increase and commercial energy will decrease by more than 70%.