globalchange  > 影响、适应和脆弱性
DOI: 10.1088/1748-9326/11/10/105002
论文题名:
Energy and protein feed-to-food conversion efficiencies in the US and potential food security gains from dietary changes
作者: A Shepon; G Eshel; E Noor; R Milo
刊名: Environmental Research Letters
ISSN: 1748-9326
出版年: 2016
发表日期: 2016-10-04
卷: 11, 期:10
语种: 英语
英文摘要:

Feeding a growing population while minimizing environmental degradation is a global challenge requiring thoroughly rethinking food production and consumption. Dietary choices control food availability and natural resource demands. In particular, reducing or avoiding consumption of low production efficiency animal-based products can spare resources that can then yield more food. In quantifying the potential food gains of specific dietary shifts, most earlier research focused on calories, with less attention to other important nutrients, notably protein. Moreover, despite the well-known environmental burdens of livestock, only a handful of national level feed-to-food conversion efficiency estimates of dairy, beef, poultry, pork, and eggs exist. Yet such high level estimates are essential for reducing diet related environmental impacts and identifying optimal food gain paths. Here we quantify caloric and protein conversion efficiencies for US livestock categories. We then use these efficiencies to calculate the food availability gains expected from replacing beef in the US diet with poultry, a more efficient meat, and a plant-based alternative. Averaged over all categories, caloric and protein efficiencies are 7%–8%. At 3% in both metrics, beef is by far the least efficient. We find that reallocating the agricultural land used for beef feed to poultry feed production can meet the caloric and protein demands of ≈120 and ≈140 million additional people consuming the mean American diet, respectively, roughly 40% of current US population.

URL: http://iopscience.iop.org/article/10.1088/1748-9326/11/10/105002
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13957
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

Files in This Item:
File Name/ File Size Content Type Version Access License
Shepon_2016_Environ._Res._Lett._11_105002.pdf(1414KB)期刊论文作者接受稿开放获取View Download

作者单位: Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot 7610001, Israel;Radcliffe Institute for Advanced Study, Harvard University, 10 Garden Street, Cambridge, MA 02138, USA;Institute of Molecular Systems Biology, ETH Zürich, Auguste-Piccard-Hof 1, CH-8093 Zürich, Switzerland;Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot 7610001, Israel

Recommended Citation:
A Shepon,G Eshel,E Noor,et al. Energy and protein feed-to-food conversion efficiencies in the US and potential food security gains from dietary changes[J]. Environmental Research Letters,2016-01-01,11(10)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[A Shepon]'s Articles
[G Eshel]'s Articles
[E Noor]'s Articles
百度学术
Similar articles in Baidu Scholar
[A Shepon]'s Articles
[G Eshel]'s Articles
[E Noor]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[A Shepon]‘s Articles
[G Eshel]‘s Articles
[E Noor]‘s Articles
Related Copyright Policies
Null
收藏/分享
文件名: Shepon_2016_Environ._Res._Lett._11_105002.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.