Designing a Model of the Urban Agricultural Effect on Food Security (Case Study: 22 Districts of Tehran Metropolis)

The world today is facing the problems of population increase, urbanization, increasing need for food, decreasing water resources and environmental destruction. Urban agriculture, as a part of urban activities, is considered an opportunity to make positive changes in the world's food system and produce high-quality food. Therefore, the current research was conducted with the aim of designing a model of the urban agricultural effect on food security in tehran metropolis. The statistical population of the research consists of all learners participating in the urban agriculture training courses organized by the General Department of Education of the 22 districts of Tehran in 2018 (N = 726). The sample size was determined by using Cochran's formula, 164 people, and stratified random method with proportional assignment (according to the areas where they work among the 22 areas of Tehran municipality) was used for sampling. Data analysis was done using Smart PLS3 software.  According to the calculated indicators, the reliability and validity of the model were confirmed. The results showed that based on the model of the effect of urban agriculture on food security in Tehran city, urban agriculture explains a total of 0.85 of the dependent variable changes in food security. Also, the results of the investigation of the components of the dimensions of urban agriculture and food security indicate that the dimension of urban agriculture is, in order, of economic (β=0.975), environmental (β=0.967), social (β=0.963) and psychomotor functions, respectively. (β=0.851), is affected. that the aforementioned functions are considered to be the explanations of urban agriculture in Tehran Metropolis and have a significant effect on this phenomenon. The components of food security include access (β=0.970), use (β=0.969), sustainability (β=0.952), availability (β=0.939), and safety (β=0.914), which have the greatest effect on food security in order of priority.