Crop health and its global impacts on the components of food security

Savary, S. and Bregaglio, S. and Willocquet, L. and Gustafson, D. and Mason D'Croz, D. and Sparks, A. and Castilla, N. and Djurle, A. and Allinne, C. and Sharma, Mamta and Rossi, V. and Amorim, L. and Bergamin, A. and Yuen, J. and Esker, P. and McRoberts, Neil and Avelino, J. and Duveiller, E. and Koo, J. and Garrett, K. (2017) Crop health and its global impacts on the components of food security. Food Security, 9 (2). pp. 311-327. ISSN 1876-4517

Abstract

The literature on the importance of plant pathogens sometimes emphasizes their possible role in historical food shortages and even in famines. Aside from such major crises, plant pathogens should also be seen as important reducers of crop performances, with impacts on system sustainability, from the ecological, agronomical, social, and economic standpoints – all contributing ultimately to affecting food se- curity. These views need reconciliation in order to produce a clearer picture of the multidimensional effects of plant disease epidemics. Such a picture is needed for disease management today, but would also be useful for future policies. This article attempts to develop a framework that would enable assessment of the impacts of plant diseases, referred collec- tively to as crop health, on food security via its components. We have combined three different existing definitions of food security in order to develop a framework consisting of the following six components: (1) Availability. Primary produc- tion; (2) Availability. Import - Stockpiles; (3) Access. Physical and supply chain; (4) Access. Economic; (5) Stability of food availability; (6) Utility-Safety-Quality- Nutritive value. In this framework, components of food secu- rity are combined with three attributes of production situa- tions: the nature of the considered crop (i.e. food- or non- food), the structure of farms (i.e. subsistence or commercial), and the structure of markets (i.e. weakly organized and lo- cal, to strongly organized and globalized). The resulting matrix: [Food security components] × [Attributes of pro- duction situations] provides a framework where the impacts of chronic, acute, and emerging plant disease epidemics on food security can be examined. We propose that, given the number of components and interactions at play, a systems modelling approach is required to address the functioning of food systems exposed to plant disease risks. This approach would have application in both the management of the cur- rent attrition of crop performances by plant diseases, and also of possible disease-induced shocks. Such an approach would also enable quantifying shifts in disease vulnerability of production situations, and therefore, of food systems, as a result of climate change, globalization, and evolving crop health.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: Current - Institute for Agriculture and the Environment
Date Deposited: 17 Oct 2017 05:38
Last Modified: 17 Apr 2018 22:58
Uncontrolled Keywords: Plant disease epidemics, Epidemiology, Crop losses, Chronic epidemics, Acute epidemics, Emerging epidemics
Fields of Research : 06 Biological Sciences > 0607 Plant Biology > 060704 Plant Pathology
07 Agricultural and Veterinary Sciences > 0703 Crop and Pasture Production > 070308 Crop and Pasture Protection (Pests, Diseases and Weeds)
Socio-Economic Objective: D Environment > 96 Environment > 9604 Control of Pests, Diseases and Exotic Species > 960413 Control of Plant Pests, Diseases and Exotic Species in Farmland, Arable Cropland and Permanent Cropland Environments
Identification Number or DOI: 10.1007/s12571-017-0659-1
URI: http://eprints.usq.edu.au/id/eprint/30934

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