气候变化领域集成服务门户(CCPortal): Changes in crop rotations would impact food production in an organically farmed world

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DOI	10.1038/s41893-019-0259-5
	Changes in crop rotations would impact food production in an organically farmed world
	Barbieri P.; Pellerin S.; Seufert V.; Nesme T.
发表日期	2019
ISSN	2398-9629
起始页码	378
结束页码	385
卷号	2 期号:5
英文摘要	The debate about organic farming productivity has often focused on its relative crop yields compared with conventional farming. However, conversion to organic farming not only results in changes in crop yields, but also in changes in the types of crops grown. To date, the effects of such changes on global crop production have never been systematically investigated. Here, we provide a novel, spatially explicit estimation of the distribution of crop types grown, as well as crop production, under a scenario of 100% conversion of current cropland to organic farming. Our analysis shows a decrease of −31% harvested area, with primary cereals (wheat, rice and maize) compensated by an increase in the harvested areas with temporary fodders (+63%), secondary cereals (+27%) and pulses (+26%) compared with the conventional situation. These changes, paired with organic-to-conventional yield gaps, lead to a −27% gap in energy production from croplands compared with current production. We found that ~1/3 of this gap is explained by changes in the types of crops grown (a contribution rising to 50% when focusing on food crops only), and that such changes strongly affect the repartition of total production among different crop types. Feeding the world organically would thus require profound adaptations of human diets and animal husbandry. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	Cultivation; Animal husbandry; Crop production; Crop rotation; Current production; Energy productions; Food production; Organic farming; Spatially explicit; Crops
来源期刊	Nature Sustainability
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/163042
作者单位	INRA, UMR 1391 ISPA, Bordeaux, France; Bordeaux Sciences Agro, Université de Bordeaux, UMR 1391 ISPA, Bordeaux, France; Institute for Environmental Studies, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
推荐引用方式 GB/T 7714	Barbieri P.,Pellerin S.,Seufert V.,et al. Changes in crop rotations would impact food production in an organically farmed world[J],2019,2(5).
APA	Barbieri P.,Pellerin S.,Seufert V.,&Nesme T..(2019).Changes in crop rotations would impact food production in an organically farmed world.Nature Sustainability,2(5).
MLA	Barbieri P.,et al."Changes in crop rotations would impact food production in an organically farmed world".Nature Sustainability 2.5(2019).