ENSC 502- Midterm Exam Guide - Comprehensive Notes for the exam ( 14 pages long!)
5 Oct 2017
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Document Summary
Food systems involve the food production, processing and distribution or access of food. It is subject to market forces, cultural norms, and socioeconomic factors. Food security is a situation that exists when all people, at all times, have physical, social and economic access to sufficient, safe and nutritious food that meets their dietary needs and food preferences for an active and healthy life. North americans spend 10% of their income on food. Developing countries spend 50% of income on food. Agriculture: primary production of food, fuel, fiber. There are 11 centers of origin for agriculture (example being the fertile crescent): our food production is becoming increasing specialized. Traditionally both plant and animal systems were integrated. Agriculture first spread east and west across the globe due to the favourable climatic conditions found in this range. Post 1900s productivity increased through mechanization, synthetic fertilizers, selective breeding, the haber-bosch process etc.
