Increasing homogeneity in global food supplies and the implications for food security

Proceedings of the National Academy of Sciences of the United States of America - Tập 111 Số 11 - Trang 4001-4006 - 2014
Colin K. Khoury1,2, Anne D. Bjorkman3,4, Hannes Dempewolf5,6,4, Julián Ramírez-Villegas7,8,9, Luigi Guarino10, Andy Jarvis11,8, Loren H. Rieseberg5,4,12, P.C. Struik13
1Centre for Crop Systems Analysis, Wageningen University, 6708 PB, Wageningen, The Netherlands;
2International Center for Tropical Agriculture, Apartado Aéreo 6713, Cali, Colombia;
3Departments of cGeography and
4dThe Biodiversity Research Centre, University of British Columbia, Vancouver, BC, Canada V6T 1Z4;
5Botany,
6Global Crop Diversity Trust, 53115 Bonn, Germany;
7Institute for Climate and Atmospheric Science, School of Earth and Environment, University of Leeds, Leeds LS2 9JT, United Kingdom; and
8gCGIAR Research Program on Climate Change, Agriculture, and Food Security, Cali, Colombia;
9hInstitute for Climate and Atmospheric Science, School of Earth and Environment, University of Leeds, Leeds LS2 9JT, United Kingdom; and
10fGlobal Crop Diversity Trust, 53115 Bonn, Germany;
11CGIAR Research Program on Climate Change, Agriculture, and Food Security, Cali, Colombia;
12iDepartment of Biology, Indiana University, Bloomington, IN 47405
13bCentre for Crop Systems Analysis, Wageningen University, 6708 PB, Wageningen, The Netherlands;

Tóm tắt

Significance This study provides evidence of change in the relative importance of different crop plants in national food supplies worldwide over the past 50 years. Within a global trend of increased overall quantities of food calories, protein, fat, and weight, and increased proportions of those quantities sourcing from energy-dense foods, national food supplies diversified in regard to contributing measured crop commodities. As a consequence, national food supplies globally have become increasingly similar in composition, based upon a suite of truly global crop plants. The growth in reliance worldwide on these crops heightens interdependence among countries in their food supplies, plant genetic resources, and nutritional priorities.

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Proceedings of the National Academy of Sciences of the United States of America

Tập 111 Số 11

4001-4006

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