The food is human survival and development foundation, which is the important strategic material relating to the relationship. Food security is not only an important economic problem, but also an important political issue. Entering the 21st century, China's population has exceeded 1.3 billion, for such a large population, food security is particularly important. Along with the rapid development of urbanization in China, the number of cities increases year by year, t the city has become an important carrier of our national economic development. In particular, the main source of food consumption of the large medium-sized cities to relies mainly on market regulation, rather than local food production and supply based. Large and medium-sized cities are comparatively typical food circulation leading city. The gap in need of insufficient is becoming more and more in urban areas. The food security situation is not optimistic. In addition, the food security of large and medium-sized city is an important part of the national food security. Therefore, for ensure the national food security; research for food security of the large and medium-sized cities is great significance.Jinan is a provincial capital city of Shandong province. Shandong is a big agricultural province. In the situation of research national food security, research for the grain consumption characteristics and the food security countermeasures of Jinan has certain representativeness and reference value. Especially in recent years, the city of Jinan in the protection of regional food security of the exploration and practice has achieved some success and experience. The success and experience can give the same city regional grain security guarantee mechanism of research in the beneficial enlightenment. Simultaneously, it is very important practical significance for the food security of Jinan.In this thesis, it describes the evolution of the food security concept, which bases on research and analysis for food security of many experts and scholars at home and abroad. It analyzes the importance of food security status and the food security in large and medium cities in China at this stage. This thesis describes the meaning of the characteristics of large and medium urban food security and objectives of food security. And based on it the medium and large meaning and medium-sized urban food security. And it discussed the relationship of the national food security and the city food security.Through from food production, circulation and consumption of food security issues in Jinan City, the empirical analysis, comprehensive summary of the last few years the city of Jinan City in the maintenance of regional food security to make a useful exploration. Meanwhile, other cities learn from foreign and domestic experience in the psychology building food security, food production and security, food distribution and food security and other aspects of the responsibility to ensure food security in large and medium cities in China's countermeasures, aimed at the food in Jinan City layout and safety of food security and medium-sized cities, construction of the mechanism to provide reliable theoretical basis, to ensure food security in urban areas, thus ensuring national food security. |