Future cereal production in China: The interaction of climate change, water availability and socio-economic scenarios

doi:10.1016/j.gloenvcha.2008.10.006

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

	Future cereal production in China: The interaction of climate change, water availability and socio-economic scenarios
	Xiong Wei 1,2; Declan, Conway 3; Erda, Lin 1,2; Xu Yinlong 1,2; Ju Hui 1,2; Jiang Jinhe 4; Ian, Holman 5; Li Yan 6
刊名	GLOBAL ENVIRONMENTAL CHANGE-HUMAN AND POLICY DIMENSIONS
	2009
卷号	19 期号:1 页码:34-44
关键词	China Food production Climate change Water availability Scenarios Adaptation
ISSN号	0959-3780
DOI	10.1016/j.gloenvcha.2008.10.006
通讯作者	Xiong Wei
英文摘要	Food production in China is a fundamental component of the national economy and driver of agricultural policy. Sustaining and increasing output to meet growing demand faces significant challenges including climate change, increasing population, agricultural land loss and competing demands for water. Recent warming in China is projected to accelerate by climate models with associated changes in precipitation and frequency of extreme events. How changes in cereal production and water availability due to climate change will interact with other socio-economic pressures is poorly understood. By linking crop and water simulation models and two scenarios of climate (derived from the Regional Climate Model PRECIS) and socio-economic change (downscaled from IPCC SIZES A2 and B2) we demonstrate that by the 2040s the absolute effects of climate change are relatively modest. The interactive effects of other drivers are negative, leading to decreases in total production of -18% (A2) and -9% (B2). Outcomes are highly dependent on climate scenario, socio-economic development pathway and the effects Of CO2 fertilization on crop yields which may almost totally offset the decreases in production. We find that water availability plays a significant limiting role on future cereal production, due to the combined effects of higher crop water requirements (due to climate change) and increasing demand for non-agricultural use of water (due to socio-economic development). Without adaptation, per capita cereal production falls in all cases, by up to 40% of the current baseline.By simulating the effects of three adaptation scenarios we show that for these future scenarios China is able to maintain per capita cereal production, given reasonable assumptions about policies on land and water management and progress in agricultural technology. Our results are optimistic because PRECIS simulates much wetter conditions than a multi-model average, the CO2 crop yield response function is highly uncertain and the effects of extreme events on crop growth and water availability are likely to be underestimated. (C) 2008 Elsevier Ltd. All rights reserved.
学科主题	Environmental Sciences ; Environmental Studies ; Geography ; ENVIRONMENTAL SCIENCES ; ENVIRONMENTAL STUDIES ; GEOGRAPHY
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000264655400006
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/19966]
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 Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China 2.Minist Agr, Key Lab Agroenvironm & Climate Change, Beijing 100081, Peoples R China 3.Univ E Anglia, Sch Dev Studies, Tyndall Ctr Climate Change Res, Norwich NR4 7TJ, Norfolk, England 4.Chinese Acad Sci, Inst Quantitat & Tech Econ, Beijing 100732, Peoples R China 5.Cranfield Univ, Dept Nat Resources, Cranfield MK43 0AL, Beds, England 6.Minist Water Resources, Water Resources Informat Ctr, Beijing 100053, Peoples R China
推荐引用方式 GB/T 7714	Xiong Wei,Declan, Conway,Erda, Lin,et al. Future cereal production in China: The interaction of climate change, water availability and socio-economic scenarios[J]. GLOBAL ENVIRONMENTAL CHANGE-HUMAN AND POLICY DIMENSIONS,2009,19(1):34-44.
APA	Xiong Wei.,Declan, Conway.,Erda, Lin.,Xu Yinlong.,Ju Hui.,...&Li Yan.(2009).Future cereal production in China: The interaction of climate change, water availability and socio-economic scenarios.GLOBAL ENVIRONMENTAL CHANGE-HUMAN AND POLICY DIMENSIONS,19(1),34-44.
MLA	Xiong Wei,et al."Future cereal production in China: The interaction of climate change, water availability and socio-economic scenarios".GLOBAL ENVIRONMENTAL CHANGE-HUMAN AND POLICY DIMENSIONS 19.1(2009):34-44.