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Open AccessArticle

Coupling of Rural Energy Structure and Straw Utilization: Based on Cases in Hebei, China

1
Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
2
Department of Economics and Rural Development, Gembloux Agro-Bio Tech, University of Liège, 5030 Gembloux, Belgium
3
Research Center for Agricultural Green Development in China, Beijing 100081, China
*
Author to whom correspondence should be addressed.
Sustainability 2020, 12(3), 983; https://doi.org/10.3390/su12030983
Received: 23 December 2019 / Revised: 17 January 2020 / Accepted: 23 January 2020 / Published: 29 January 2020
China’s coal-based energy structure is the main reason for the current high-level air pollution and carbon emissions. Now in the North China Plain, the government is vigorously promoting “coal to gas” and “coal to electricity” in the country and the vast rural areas. The development and utilization of biomass resources in agricultural areas is also an effective means of replacing coal. We propose the idea of forming a complementary rural energy structure of “biogas, briquetting, electricity (BBE)” model based on centralized biogas production (CBP) and straw briquetting fuel (SBF) to improve the rural energy structure. This article uses emergy analysis methods to analyze actual cases. It needs to have strengths and avoid weaknesses in mode selection. The process of the analysis reveals the disadvantages and improvement measures. Under the current capacity load, the emergy input and output, eco-economic indicators, sustainable development indicators, environmental load indicators, and economic value have their own advantages and disadvantages. Assuming 100% capacity load, the indicators have great optimization space. Reducing labor input during the planting phase can effectively reduce emergy input. The government needs to provide corresponding support based on the strengths and weaknesses of the project to keep the project sustainability. The development of complementary integration based on local conditions is an important measure to optimize the energy consumption structure in rural areas and improve the ecological environment. View Full-Text
Keywords: emergy analysis; centralized biogas production (CBP); straw briquetting fuel (SBF) emergy analysis; centralized biogas production (CBP); straw briquetting fuel (SBF)
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Wang, Q.; Dogot, T.; Huang, X.; Fang, L.; Yin, C. Coupling of Rural Energy Structure and Straw Utilization: Based on Cases in Hebei, China. Sustainability 2020, 12, 983.

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