I live in the country and have a big garden.  I understand there is a big push in cities for urban agriculture though.
In urban areas, people need more access to fresh produce
Where do they put gardens?  In the city park?
These agricultural areas can be integrated into local town planning.  But I have heard of roof gardens.
Roof gardens?  Tell me how they manage that.  I would think the dirt would be too heavy and put too much strain on the roof.
Peri-urban  agriculture may have different characteristics. For example, you might not use real soil.
Really?  I have heard of hydro-plants.  Do they use water instead?
Urban agriculture
Urban agriculture, urban farming, or urban gardening is the practice of cultivating, processing and distributing food in or around urban areas. Urban agriculture can also involve animal husbandry, aquaculture, agroforestry, urban beekeeping, and horticulture. These activities occur in peri-urban areas as well, and peri-urban agriculture may have different characteristics.
Urban agriculture can reflect varying levels of economic and social development. It may be a social movement for sustainable communities, where organic growers, "foodies," and "
traffic in big cities are so formidable that society will have to ask itself seriously how far it is prepared to go with the motor vehicle.
There was a need to limit vehicle access to some urban areas:
Distasteful though we find the whole idea, we think that some deliberate limitation of the volume of motor traffic is quite unavoidable. The need for it just can't be escaped. Even when everything that it is possibly to do by way of building new roads and expanding public transport has been done, there