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Carbon footprint and economic efficiency of urban agriculture in Beijing-a comparative case study of conventional and home-delivery agriculture
Hu, Yingjie1; Zheng, Ji2,3; Kong, Xiangbin1; Sun, Jin1; Li, Yu2,3
2019-10-10
Source PublicationJOURNAL OF CLEANER PRODUCTION
ISSN0959-6526
Volume234Pages:615-625
Corresponding AuthorKong, Xiangbin(kxb@cau.edu.cn)
AbstractWithin the context of climate change and population growth, the development of urban agriculture is of great environmental and economic significance in rapidly urbanizing China. Based on the primary survey data, this paper evaluated the carbon footprint (CF) and economic efficiency of urban agriculture in Beijing (China) using the life cycle assessment method (from cradle to consumption approach). Two cases were analyzed and compared considering their differences in on-farm cultivation and off-farm supply chains: a conventional small householder farm that sells its vegetables directly to consumers in a local market, and a large home-delivery agriculture (HDA) initiative that delivers its vegetables to the consumers' home directly. Both cases were equipped with greenhouses with plastic covering but no heating system. The CF of the production, transportation and distribution of 1 kg fresh vegetables was estimated at 0.318 kg CO2-eq kg(-1) and 0.624-0.652 kg CO2-eq kg(-1) for conventional and HDA initiative farm, respectively. However, the HDA initiative showed a better environmental performance than the conventional operation when taking economic efficiency into consideration. The CF per unit of profit of HDA initiative (0.093-0.097 kg CO2-eq per CNY) was lower than conventional farm (0.111 kg CO2-eq per CNY). The lower CF per unit of product weight of the conventional farm was largely attributed to the high yield and the lower CF per unit of profit of the HDA initiative was mainly due to the outstanding economic profitability through income optimization. The major hotspots of CF in both cases were greenhouse plastic films in the cultivation phase (from cradle to farm gate) and transportation in the supply chain (from farm gate to consumption). Simulation of a switch to biodiesel instead of gasoline and diesel in combination with the replacement of current fossil-fuel-dominated electricity by hydro-powered electricity resulted in 20.0-21.8% reduction in the total CF. By identifying the CF hotspots of two farm cases, particular inputs and activities can be targeted for adjustment in order to effectively reduce the CF of urban agriculture in Beijing. (C) 2019 Elsevier Ltd. All rights reserved.
KeywordLife cycle assessment Carbon footprint Urban agriculture Home-delivery agriculture Conventional smallholder operation Beijing
DOI10.1016/j.jclepro.2019.06.122
WOS KeywordLIFE-CYCLE ASSESSMENT ; GREENHOUSE-GAS EMISSIONS ; TOMATO PRODUCTION ; INVENTORY ANALYSIS ; FOOD SYSTEMS ; ENERGY ; SUSTAINABILITY ; PRODUCTS ; CHINA ; CITY
Indexed BySCI
Language英语
Funding ProjectBeijing Municipal Natural Science Foundation[8151001] ; National Natural Science Foundation of China[41771561] ; National Natural Science Foundation of China[41771182]
Funding OrganizationBeijing Municipal Natural Science Foundation ; National Natural Science Foundation of China
WOS Research AreaScience & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
WOS SubjectGreen & Sustainable Science & Technology ; Engineering, Environmental ; Environmental Sciences
WOS IDWOS:000483406000054
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/69696
Collection中国科学院地理科学与资源研究所
Corresponding AuthorKong, Xiangbin
Affiliation1.China Agr Univ, Coll Land Sci & Technol, Room 5-319,2nd Yuanmingyuan West Rd, Beijing 100193, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Hu, Yingjie,Zheng, Ji,Kong, Xiangbin,et al. Carbon footprint and economic efficiency of urban agriculture in Beijing-a comparative case study of conventional and home-delivery agriculture[J]. JOURNAL OF CLEANER PRODUCTION,2019,234:615-625.
APA Hu, Yingjie,Zheng, Ji,Kong, Xiangbin,Sun, Jin,&Li, Yu.(2019).Carbon footprint and economic efficiency of urban agriculture in Beijing-a comparative case study of conventional and home-delivery agriculture.JOURNAL OF CLEANER PRODUCTION,234,615-625.
MLA Hu, Yingjie,et al."Carbon footprint and economic efficiency of urban agriculture in Beijing-a comparative case study of conventional and home-delivery agriculture".JOURNAL OF CLEANER PRODUCTION 234(2019):615-625.
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