Environmental Management

, Volume 15, Issue 1, pp 1–14

Review and appraisal of concept of sustainable food production systems

  • Michael Brklacich
  • Christopher R. Bryant
  • Barry Smit

DOI: 10.1007/BF02393834

Cite this article as:
Brklacich, M., Bryant, C.R. & Smit, B. Environmental Management (1991) 15: 1. doi:10.1007/BF02393834


Environmental degradation, competition for resources, increasing food demands, and the integration of agriculture into the international economy threaten the sustainability of many food production systems. Despite these concerns, the concept of sustainable food production systems remains unclear, and recent attempts to appraise sustainability have been hampered by conceptual inconsistencies and the absence of workable definitions. Six perspectives are shown to underpin the concept. Environmental accounting identifies biophysical limits for agriculture. Sustained yield refers to output levels that can be maintained continuously. Carrying capacity defines maximum population levels that can be supported in perpetuity. Production unit viability refers to the capacity of primary producers to remain in agriculture. Product supply and security focuses on the adequacy of food supplies. Equity is concerned with the spatial and temporal distribution of products dervied from resource use. Many studies into sustainable agriculture cover more than one of these perspectives, indicating the concept is complex and embraces issues relating to the biophysical, social, and economic environments. Clarification of the concept would facilitate the development of frameworks and analytical systems for appraising the sustainability of food production systems.

Key words

Sustainable food production systemsEnvironmental accountingSustained yieldCarrying capacityViabilityFood supply and securityEquity

Copyright information

© Springer-Verlag New York Inc. 1991

Authors and Affiliations

  • Michael Brklacich
    • 1
  • Christopher R. Bryant
    • 2
  • Barry Smit
    • 3
  1. 1.Land Resource Research Centre Research BranchAgriculture CanadaOttawaCanada
  2. 2.Department de GéographieUniversité de MontréalMontréalCanada
  3. 3.Department of GeographyUniversity of GuelphGuelphCanada