Food shortage has always been a big problem for the whole world. Although now technology is making progress and productivity is gradually improving, the growing food consumption still cannot be satisfied. At present, the world population has reached 7 billion, and this number continues growing and people who suffering hunger account for 8.27 hundred million which are mostly concentrated in developing countries and Asian countries have the largest number of hungry people. People have been trying to solve this problem all the time, such as the research and develop for new varieties, increase yield and reclaim more planting land, etc. In some cities of the developed countries, a new type of agriculture– Urban Agriculture emerges as the time requires. This term, our research direction for city regeneration is also the Urban Agriculture. Urban Agriculture is to develop the plant growth and cultivation as well as animal feeding to the cities, combined with the city developments to provide food for the city residents. The aim is integrated into the urban economic and ecological system to achieve physically, economically and socially integrated. 800 million urban residents are actively engaged in urban agriculture.
In cities, people try to find free city lands to develop urban agriculture, roofs, balconies, residential gardens, community green spaces are all available and which are easy for accessing and developing of urban agriculture. In different countries and regions, the ways and the effects of urban agriculture development are not the same; the main difference lies in the developing countries and developed countries.
In developed countries, people are very positive and happy to participate in the development of urban agriculture; many cities already have relatively perfect agricultural system which can correctly and effectively guide people to carry out agricultural production. Just like Bristol use public garden and community garden to build a food network in the whole city. Every part of land have a different role in network systems. And they encourage people to take part in their work or find their interested garden. Furthermore, they also organize many activities to let more people know they, such as Bristol Food Connections Festival, Bristol’s Get Growing Garden Trail which is help people to get involved in the gardening projects through some interesting activities. If you are interested about this project, you can find more information on their website. http://www.bristolfoodnetwork.org/local-food-map/
On the contrary, in developing countries, the reason why people began to personally plant food is mostly because of worrying about food safety, so they grow green vegetables to meet the basic needs of their daily life. The biggest limitation in developing countries is that people can seldom find a wide range of land to provide support for the development of urban agriculture; most people can only choose on a balcony or roof to plant a small range of food, and the most important is that the urban agriculture awareness has not been fully popularized. The centre of the whole city development is economic development and to accelerate the city constructions; residents are fighting for their own life, and they have no concept of urban agriculture development. So to develop urban agriculture, we need the government to formulate relevant policies to encourage people to actively participate in the urban agriculture development, and vigorously give publicity to the benefits brought by urban agriculture as well improve the enthusiasm of the masses.
Urban agriculture not only can effect urban economic development, but also help environmental improvement. It can reduce food costs to improve quality of life, and provide health food, health eating and health life style. Moreover, urban agriculture will increase opportunity of employment and entrepreneurship, it is a new skill for residents and an education base for students. It can improve the social stability and cohesion to form social integration.