Biomass energy utilization and soil carbon sequestration in rural China: A case study based on circular agriculture

doi:10.1063/1.5001873

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	Biomass energy utilization and soil carbon sequestration in rural China: A case study based on circular agriculture
	Wu, Guanglei ; Cheng, Da 1; Li, Lijun 1; Li, Caihong ; Jiang, Gaoming ; Zheng, Yanhai
刊名	JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY
	2018
卷号	10 期号:1
ISSN号	1941-7012
DOI	10.1063/1.5001873
文献子类	Article
英文摘要	Biogas projects have been promoted by the Chinese government in rural areas for several decades. However, these projects have proceeded slowly under the lack of biogas production technology. A circular agricultural experiment in combination with a local biogas promotion project was carried out in Jiangjiazhuang, a typical agricultural village in China, from 2008 to 2015. Agricultural production proceeded in an agricultural loop: Crops -> Grains/crop residues -> Human/cattle -> Human/cattle excreta -> Biogas digester -> Biogas/biogas residues -> Domestic fuels/organic fertilizers -> Crops. The abundant crop residues were used as cattle forage to turn the biomass energy into human-edible food. Human/cattle dejecta was used as the substrate to produce biogas for livelihood energy. Biogas digester residues were used as organic fertilizers after composting to improve soil quality and crop yield. The results showed that the proportion of crop residues used for cattle forage increased from 1.3% in 2008 to 86.2% in 2015, while cattle population increased from 3 to 198. The proportion of biogas in total household energy increased from 1.1% in 2008 to 62.3% in 2015. Soil organic carbon increased under organic fertilizer application from 83.8Mg C hm(-2) to 213.5Mg C hm(-2). Our findings demonstrate that the promotion of circular agriculture may effectively enhance the utilization rate of biomass energy (crop residues) and reduce the consumption potential of fossil energy over 50%. Circular agriculture is a sustainable agricultural system that could improve the environmental conditions in rural areas. Published by AIP Publishing.
学科主题	Green & Sustainable Science & Technology ; Energy & Fuels
出版地	MELVILLE
WOS关键词	URBAN CHINA ; BIOGAS ; HAPPINESS ; CONSUMPTION ; SUBSIDIES ; VILLAGE ; REFORM ; STRAW
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000426032800008
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31170367, 41471441, 31670413] ; National Key Research and Development Program of China [SQ2017YFC170295, 2016YFC050708]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/20382]
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, State Key Lab Vegetat & Environm Change, Inst Bot, 20 Nanxincun, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, 19 Yuquanlu, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wu, Guanglei,Cheng, Da,Li, Lijun,et al. Biomass energy utilization and soil carbon sequestration in rural China: A case study based on circular agriculture[J]. JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY,2018,10(1).
APA	Wu, Guanglei,Cheng, Da,Li, Lijun,Li, Caihong,Jiang, Gaoming,&Zheng, Yanhai.(2018).Biomass energy utilization and soil carbon sequestration in rural China: A case study based on circular agriculture.JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY,10(1).
MLA	Wu, Guanglei,et al."Biomass energy utilization and soil carbon sequestration in rural China: A case study based on circular agriculture".JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY 10.1(2018).