气候变化领域集成服务门户(CCPortal): How much does climate change add to the challenge of feeding the planet this century?

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DOI	10.1088/1748-9326/aafa3e
	How much does climate change add to the challenge of feeding the planet this century?
	Aggarwal P.; Vyas S.; Thornton P.; Campbell B.M.
发表日期	2019
ISSN	17489318
卷号	14 期号:4
英文摘要	The impacts of climate change on crop yields, as projected by a slew of impact assessments carried out since the 1980s, have brought the issue of future food insecurity to the fore. A meta-analysis of ∼27 000 data points from studies published over the last four decades reveals that at country level, average impacts of climate change on crop yields up to the 2050s are generally small (but negative) for rice and wheat, and modest for maize, provided farmers adopt practices and technologies such as improved varieties, planting at optimal times, and improved water and fertilizer management. These technologies also have the potential to reduce differences across political, economic and climatic regions. Once these are adopted, climate change may not add significantly to the challenge of food production for the majority of countries except for some potential hotspots distributed around the world. Massive investment, policy, and institutional support will be needed, however, to facilitate adoption and scaling-out of such practices, and to address climatic variability. © 2019 The Author(s). Published by IOP Publishing Ltd.
英文关键词	adaptation; agriculture; climate change impacts; food security; meta-analysis
语种	英语
scopus关键词	Agriculture; Crops; Food supply; adaptation; Climate change impact; Climatic variability; Fertilizer management; Food security; Impact assessments; Institutional support; Meta analysis; Climate change; adaptive management; agricultural management; climate change; climate effect; crop yield; environmental impact assessment; food production; food security; meta-analysis; rice; technology adoption; wheat; Triticum aestivum; Zea mays
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154658
作者单位	CGIAR Research Program on Climate Change, Agriculture and Food Security; Borlaug Institute for South Asia, International Maize and Wheat Improvement Center, New Delhi, 110012, India; International Livestock Research Institute, Nairobi, Kenya; International Center for Tropical Agriculture, Cali, Colombia
推荐引用方式 GB/T 7714	Aggarwal P.,Vyas S.,Thornton P.,et al. How much does climate change add to the challenge of feeding the planet this century?[J],2019,14(4).
APA	Aggarwal P.,Vyas S.,Thornton P.,&Campbell B.M..(2019).How much does climate change add to the challenge of feeding the planet this century?.Environmental Research Letters,14(4).
MLA	Aggarwal P.,et al."How much does climate change add to the challenge of feeding the planet this century?".Environmental Research Letters 14.4(2019).