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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). |
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