Could biofuel development stress China's water resources?

doi:10.1111/gcbb.12440

	Could biofuel development stress China's water resources?
	Hao, Mengmeng 1,2; Jiang, Dong 1,2; Wang, Jianhua 3; Fu, Jingying 1,2; Huang, Yaohuan 1,2
刊名	GLOBAL CHANGE BIOLOGY BIOENERGY
	2017-09-01
卷号	9 期号:9 页码:1447-1460
关键词	biophysical biogeochemical model cassava-based fuel ethanol marginal land sweet sorghum-based fuel ethanol water requirement water stress
ISSN号	1757-1693
DOI	10.1111/gcbb.12440
通讯作者	Jiang, Dong(jiangd@igsnrr.ac.cn) ; Wang, Jianhua(wjh@iwhr.com)
英文摘要	Concerns over energy shortages and global climate change have stimulated developments toward renewable energy. Biofuels have been developed to replace fossil fuels to reduce the emissions of greenhouse gases and other environmental impacts. However, food security and water scarcity are other growing concerns, and the increased production of biofuels may increase these problems. This study focuses on whether biofuel development would stress China's water resources. Cassava-based fuel ethanol and sweet sorghum-based fuel ethanol are the focus of this study because they are the most typical nongrain biofuels in China. The spatial distribution of the total water requirement of fuel ethanol over its life cycle process was simulated using a biophysical biogeochemical model and marginal land as one of the types of input data for the model to avoid impacts on food security. The total water requirement of fuel ethanol was then compared with the spatial distribution of water resources, and the influence of the development of fuel ethanol on water resources at the pixel and river basin region scales was analyzed. The result showed that the total water requirement of fuel ethanol ranges from 37.81 to 862.29 mm. However, considering water resource restrictions, not all of the marginal land is suitable for the development of fuel ethanol. Approximately 0.664 million km(2) of marginal land is suitable for the development of fuel ethanol, most of which is located in the south of China, where water resources are plentiful. For these areas, the value of fuel ethanol's water footprint ranges from 0.05 to 11.90 m(3) MJ(-1). From the water point of view, Liaoning province, Guizhou province, Anhui province and Hunan province can be given priority for the development of fuel ethanol.
资助项目	National Natural Science Foundation of China[41571509] ; Ministry of Science and Technology of China[2016Y FC1201300]
WOS关键词	GHG EMISSIONS ; MARGINAL LAND ; ELECTRICITY-GENERATION ; BIOENERGY SYSTEMS ; BIOGAS PRODUCTION ; SWEET SORGHUM ; SOUTH-AFRICA ; WHEAT YIELD ; ENERGY ; FOOTPRINT
WOS研究方向	Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
语种	英语
出版者	WILEY
WOS记录号	WOS:000407596900004
资助机构	National Natural Science Foundation of China ; Ministry of Science and Technology of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/61487]
专题	中国科学院地理科学与资源研究所
通讯作者	Jiang, Dong; Wang, Jianhua
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, 11A Datun Rd, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 3.China Inst Hydropower Water Resources Res, State Key Lab Simulat & Regulat Water Cycle River, Dept Water Resources, Beijing 100038, Peoples R China
推荐引用方式 GB/T 7714	Hao, Mengmeng,Jiang, Dong,Wang, Jianhua,et al. Could biofuel development stress China's water resources?[J]. GLOBAL CHANGE BIOLOGY BIOENERGY,2017,9(9):1447-1460.
APA	Hao, Mengmeng,Jiang, Dong,Wang, Jianhua,Fu, Jingying,&Huang, Yaohuan.(2017).Could biofuel development stress China's water resources?.GLOBAL CHANGE BIOLOGY BIOENERGY,9(9),1447-1460.
MLA	Hao, Mengmeng,et al."Could biofuel development stress China's water resources?".GLOBAL CHANGE BIOLOGY BIOENERGY 9.9(2017):1447-1460.