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Human appropriation of land for food : The role of diet

Alexander, Peter; Brown, Calum ORCID iD icon; Arneth, Almut 1,2; Finnigan, John; Rounsevell, Mark D. A.
1 Institut für Meteorologie und Klimaforschung – Atmosphärische Umweltforschung (IMK-IFU), Karlsruher Institut für Technologie (KIT)
2 Institut für Meteorologie und Klimaforschung (IMK), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

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. ... mehr

DOI: 10.1016/j.gloenvcha.2016.09.005
Zitationen: 117
Web of Science
Zitationen: 107
Zitationen: 114
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung – Atmosphärische Umweltforschung (IMK-IFU)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 11.2016
Sprache Englisch
Identifikator ISSN: 0959-3780, 1872-9495
KITopen-ID: 1000060217
HGF-Programm 12.02.02 (POF III, LK 01) Vegetation climate- and land use system
Erschienen in Global environmental change
Verlag Elsevier
Band 41
Seiten 88-98
Vorab online veröffentlicht am 30.09.2016
Schlagwörter Food security, Land use, Dietary change, Agriculture, Waste, Food supply chain
Nachgewiesen in Scopus
Web of Science
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