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首页> 外文期刊>Applied Energy >Emergy analysis of a biogas-linked agricultural system in rural China - A case study in Gongcheng Yao Autonomous County
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Emergy analysis of a biogas-linked agricultural system in rural China - A case study in Gongcheng Yao Autonomous County

机译：中国农村沼气农业系统的能值分析-以恭城瑶族自治县为例

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摘要

Efforts have been made to establish a biogas-linked agricultural production mode to alleviate poverty and pressure on the environment in rural China. In this paper, we evaluate the performance of biogas engineering using emergy analysis in the context of a compound agricultural system. A set of emergy indices are incorporated in the analysis to describe the transformation of energy and materials in the system. We also performed a case study in Gongcheng Yao Autonomous County, China. The carbon mitigation performance, environmental and economic trade-offs, and sustainability level of the system encompassing biogas engineering, crop production and livestock subsystems was investigated in detail. The results showed that the biogas-linked agricultural production mode characterized by further metabolism within the system made a favorable contribution to carbon mitigation and material recycling, although its conversion efficiency was low. Finally, suggestions regarding local agricultural sustainability are provided to shed light on the policies of biogas promotion in rural China.
机译：已经建立了沼气相关的农业生产模式，以减轻中国农村的贫困和环境压力。在本文中，我们在复合农业系统的背景下使用能值分析评估了沼气工程的性能。分析中包含了一组能值指数，以描述系统中能量和材料的转换。我们还在中国恭城瑶族自治县进行了案例研究。详细研究了包括沼气工程，作物生产和牲畜子系统在内的系统的减碳性能，环境和经济权衡以及可持续性水平。结果表明，虽然转化效率低，但以沼气联产为特征的农业生产模式对系统的碳减排和物质循环利用具有促进作用。最后，提供了有关当地农业可持续性的建议，以阐明中国农村发展沼气的政策。

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  • 来源
    《Applied Energy》 |2014年第1期|173-182|共10页
  • 作者

    Jin Yang; Bin Chen;

  • 作者单位

    State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, PR China;

    State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, PR China ,No. 19, Xinjiekouwai Street, Beijing 100875, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Biogas-linked agricultural system (BIAS); Emergy analysis; CO_2 emission;

    机译：与沼气有关的农业系统（BIAS）;能值分析;CO_2排放;

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