China's water-energy nexus: greenhouse-gas emissions from groundwater use for agriculture

doi:10.1088/1748-9326/7/1/014035

CORC > 中国农业科学院 > 农业环境与可持续发展研究所 > 气候变化研究室

	China's water-energy nexus: greenhouse-gas emissions from groundwater use for agriculture
	Wang, Jinxia 1; Rothausen, Sabrina G. S. A.2,3; Conway, Declan 2,4; Zhang, Lijuan 1; Xiong, Wei 5; Holman, Ian P.6; Li, Yumin 1
刊名	ENVIRONMENTAL RESEARCH LETTERS
	2012
卷号	7 期号:1 页码:-
关键词	climate change water energy irrigation emissions China
ISSN号	1748-9326
DOI	10.1088/1748-9326/7/1/014035
通讯作者	Wang, Jinxia
英文摘要	China is the world's largest emitter of greenhouse gases (GHGs) and the agricultural sector in China is responsible for 17-20% of annual emissions and 62% of total freshwater use. Groundwater abstraction in China has increased rapidly from 10 km(3) yr(-1) in the 1950s to more than 100 km(3) yr(-1) in the 2000s, such that roughly 70% of the irrigated area in northern China is now groundwater-fed. Pumping of water for irrigation is one of the most energy consuming on-farm processes; however, to date this source of GHG emissions in China and elsewhere has been relatively neglected. We derive the first detailed estimate of GHG emissions from groundwater pumping for irrigation in China, using extensive village survey data from 11 provinces, broadly representative of the situation during the mid-2000s. The 11 provinces cover roughly half of China's irrigated cropland and we upscale to the national level using government statistics for the remaining 20 provinces. Our results show emissions of 33.1 MtCO(2)e, just over half a per cent of the national total. Groundwater abstraction represents an important source of GHG emissions that has been rapidly increasing and which at present is largely unregulated. Water scarcity in China is already driving policies to improve water conservation. These results suggest that significant potential exists to promote the co-benefits of water and energy saving in order to meet national planning targets.
学科主题	Environmental Sciences ; Meteorology & Atmospheric Sciences ; ENVIRONMENTAL SCIENCES ; METEOROLOGY & ATMOSPHERIC SCIENCES
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000302580600046
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/19910]
专题	农业环境与可持续发展研究所_气候变化研究室
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Chinese Agr Policy, Beijing 100101, Peoples R China 2.Univ E Anglia, Sch Int Dev, Norwich NR4 7TJ, Norfolk, England 3.Univ E Anglia, Water Secur Res Ctr, Norwich NR4 7TJ, Norfolk, England 4.Univ E Anglia, Tyndall Ctr Climate Change Res, Norwich NR4 7TJ, Norfolk, England 5.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China 6.Cranfield Univ, Cranfield Water Sci Inst, Cranfield MK43 0AL, Beds, England
推荐引用方式 GB/T 7714	Wang, Jinxia,Rothausen, Sabrina G. S. A.,Conway, Declan,et al. China's water-energy nexus: greenhouse-gas emissions from groundwater use for agriculture[J]. ENVIRONMENTAL RESEARCH LETTERS,2012,7(1):-.
APA	Wang, Jinxia.,Rothausen, Sabrina G. S. A..,Conway, Declan.,Zhang, Lijuan.,Xiong, Wei.,...&Li, Yumin.(2012).China's water-energy nexus: greenhouse-gas emissions from groundwater use for agriculture.ENVIRONMENTAL RESEARCH LETTERS,7(1),-.
MLA	Wang, Jinxia,et al."China's water-energy nexus: greenhouse-gas emissions from groundwater use for agriculture".ENVIRONMENTAL RESEARCH LETTERS 7.1(2012):-.