An Emergy and Decomposition Assessment of China's Crop Production: Sustainability and Driving Forces

doi:10.3390/su10113938

	An Emergy and Decomposition Assessment of China's Crop Production: Sustainability and Driving Forces
	Liu, Zuoxi 1; Wang, Yongyang 1; Wang, Shanshan 2; Dong, Huijuan 3,4; Geng, Yong 3,4; Xue, Bing 5; Gu, Jiaming 1; Li, Run Dong 1; Yang, Tianhua 1
刊名	SUSTAINABILITY
	2018-11-01
卷号	10 期号:11 页码:18
关键词	crop production sustainability emergy analysis decomposition analysis China
ISSN号	2071-1050
DOI	10.3390/su10113938
英文摘要	With a growing demand for crop products in China, a great deal of local resources and industrial inputs are consumed including agricultural machineries, chemical fertilizers, pesticides, and energies, which results in many environmental issues such as resource depletion, water pollution, soil erosion and contamination, and CO2 emissions. Thus, this study evaluated the trend of sustainability of China's crop production from 1997 to 2016 in terms of emergy and further explored the driving forces using decomposition analysis methods. The results showed that the total emergy used (U) increased by 50% from 7.82 x 10(23) in 1997 to 1.17 x 10(24) solar emergy Joule (sej) in 2016. Meanwhile, the values of the emergy sustainability index (ESI) were all smaller than one with a declining trend year by year, indicating that China's crop production system is undergoing an unsustainable development pattern. From the results of the ESI decomposition, the renewable resource factor (R/GDP) and land use factor (L/A) are two key factors impeding the sustainable development of the crop production system. Therefore, the increased capacity of renewable resources and enough labor forces engaged in crop production will be the key strategies for its sustainable development.
资助项目	natural science foundation of Liaoning province[20180550435] ; national science foudation of China[41471116] ; education department of Liaoning fund[L201609]
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
语种	英语
出版者	MDPI
WOS记录号	WOS:000451531700112
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/123803]
专题	中国科学院沈阳应用生态研究所
通讯作者	Liu, Zuoxi
作者单位	1.Shenyang Aerosp Univ, Sch Energy & Environm, Key Lab Clean Energy Liaoning, Shenyang 110136, Liaoning, Peoples R China 2.Liaoning Ctr Dis Control & Prevent, Dept Qual Control, Shenyang 110005, Liaoning, Peoples R China 3.Shanghai Jiao Tong Univ, China Inst Urban Governance, Shanghai 200030, Peoples R China 4.Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, Shanghai 200240, Peoples R China 5.Chinese Acad Sci, Inst Appl Ecol, Key Lab Pollut Ecol & Environm Engn, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Liu, Zuoxi,Wang, Yongyang,Wang, Shanshan,et al. An Emergy and Decomposition Assessment of China's Crop Production: Sustainability and Driving Forces[J]. SUSTAINABILITY,2018,10(11):18.
APA	Liu, Zuoxi.,Wang, Yongyang.,Wang, Shanshan.,Dong, Huijuan.,Geng, Yong.,...&Yang, Tianhua.(2018).An Emergy and Decomposition Assessment of China's Crop Production: Sustainability and Driving Forces.SUSTAINABILITY,10(11),18.
MLA	Liu, Zuoxi,et al."An Emergy and Decomposition Assessment of China's Crop Production: Sustainability and Driving Forces".SUSTAINABILITY 10.11(2018):18.