气候变化领域集成服务门户(CCPortal): Human appropriation of land for food: The role of diet

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DOI	10.1016/j.gloenvcha.2016.09.005
	Human appropriation of land for food: The role of diet
	Alexander P.; Brown C.; Arneth A.; Finnigan J.; Rounsevell M.D.A.
发表日期	2016
ISSN	0959-3780
卷号	41
英文摘要	Human appropriation of land for food production has fundamentally altered the Earth system, with impacts on water, soil, air quality, and the climate system. Changes in population, dietary preferences, technology and crop productivity have all played important roles in shaping today's land use. In this paper, we explore how past and present developments in diets impact on global agricultural land use. We introduce an index for the Human Appropriation of Land for Food (HALF), and use it to isolate the effects of diets on agricultural land areas, including the potential consequences of shifts in consumer food preferences. We find that if the global population adopted consumption patterns equivalent to particular current national per capita rates, agricultural land use area requirements could vary over a 14-fold range. Within these variations, the types of food commodities consumed are more important than the quantity of per-capita consumption in determining the agricultural land requirement, largely due to the impact of animal products and in particular ruminant species. Exploration of the average diets in the USA and India (which lie towards but not at global consumption extremes) provides a framework for understanding land use impacts arising from different food consumption habits. Hypothetically, if the world were to adopt the average Indian diet, 55% less agricultural land would be needed to satisfy demand, while global consumption of the average USA diet would necessitate 178% more land. Waste and over-eating are also shown to be important. The area associated with food waste, including over-consumption, given global adoption of the consumption patterns of the average person in the USA, was found to be twice that required for all food production given an average Indian per capita consumption. Therefore, measures to influence future diets and reduce food waste could substantially contribute towards global food security, as well as providing climate change mitigation options. © 2016 Elsevier Ltd
英文关键词	Agriculture; Dietary change; Food security; Food supply chain; Land use; Waste
学科领域	agricultural land; climate change; diet; dietary shift; food consumption; food preference; food security; food supply; global change; land use change; supply chain management; India; United States; Animalia
语种	英语
scopus关键词	agricultural land; climate change; diet; dietary shift; food consumption; food preference; food security; food supply; global change; land use change; supply chain management; India; United States; Animalia
来源期刊	Global Environmental Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/117318
作者单位	School of Geosciences, University of Edinburgh, Drummond StreetEdinburgh EH8 9XP, United Kingdom; Land Economy and Environment Research Group, SRUC, West Mains RoadEdinburgh EH9 3JG, United Kingdom; Karlsruhe Institute of Technology, Institute of Meteorology and Climate Research, Atmospheric Environmental Research (IMK-IFU), Kreuzeckbahnstr. 19, Garmisch-Partenkirchen, 82467, Germany; The Centre for Australian Weather and Climate Research – A partnership between CSIRO and the Bureau of Meteorology, CSIRO Marine and Atmospheric Research, Canberra, Australia
推荐引用方式 GB/T 7714	Alexander P.,Brown C.,Arneth A.,et al. Human appropriation of land for food: The role of diet[J],2016,41.
APA	Alexander P.,Brown C.,Arneth A.,Finnigan J.,&Rounsevell M.D.A..(2016).Human appropriation of land for food: The role of diet.Global Environmental Change,41.
MLA	Alexander P.,et al."Human appropriation of land for food: The role of diet".Global Environmental Change 41(2016).