气候变化领域集成服务门户(CCPortal): Global relationships between crop diversity and nutritional stability

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DOI	10.1038/s41467-021-25615-2
	Global relationships between crop diversity and nutritional stability
	Nicholson C.C.; Emery B.F.; Niles M.T.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Nutritional stability – a food system’s capacity to provide sufficient nutrients despite disturbance – is an important, yet challenging to measure outcome of diversified agriculture. Using 55 years of data across 184 countries, we assemble 22,000 bipartite crop-nutrient networks to quantify nutritional stability by simulating crop and nutrient loss in a country, and assess its relationship to crop diversity across regions, over time and between imports versus in country production. We find a positive, saturating relationship between crop diversity and nutritional stability across countries, but also show that over time nutritional stability remained stagnant or decreased in all regions except Asia. These results are attributable to diminishing returns on crop diversity, with recent gains in crop diversity among crops with fewer nutrients, or with nutrients already in a country’s food system. Finally, imports are positively associated with crop diversity and nutritional stability, indicating that many countries’ nutritional stability is market exposed. © 2021, The Author(s).
语种	英语
scopus关键词	crop production; food market; food supplementation; nutrient loss; article; Asia; crop; nonhuman; nutrient; quantitative analysis; agriculture; catering service; chemistry; commercial phenomena; crop; economics; food security; growth, development and aging; human; international cooperation; organization and management; statistical model; Agriculture; Commerce; Crops, Agricultural; Food Security; Food Supply; Humans; Internationality; Models, Statistical
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251360
作者单位	Department of Biology, Lund University, Lund, Sweden; Department of Entomology and Nematology, University of California, Davis, CA, United States; Vermont Complex Systems Center, University of Vermont, Burlington, VT, United States; Sandia National Laboratories, Albuquerque, NM, United States; Gund Institute for Environment, University of Vermont, Burlington, VT, United States; Food Systems Program, University of Vermont, Burlington, VT, United States; Department of Nutrition and Food Science, University of Vermont, Burlington, VT, United States
推荐引用方式 GB/T 7714	Nicholson C.C.,Emery B.F.,Niles M.T.. Global relationships between crop diversity and nutritional stability[J],2021,12(1).
APA	Nicholson C.C.,Emery B.F.,&Niles M.T..(2021).Global relationships between crop diversity and nutritional stability.Nature Communications,12(1).
MLA	Nicholson C.C.,et al."Global relationships between crop diversity and nutritional stability".Nature Communications 12.1(2021).