Live in city-dweller questioned by the urban agriculture ; L’habiter citadin interrogé par l’agriculture urbaine

Within the framework of a research in social geography, this thesis is interested in the urban agricultures, particularly in those practiced or lived by the city-dwellers: the professional farming that makes the periurban landscapes, the farms involved in short food supply chains, hobby farming, family and community gardens, public places used as farming places. According to location, mutual features and metropolitan governance, we proposed a definition of the urban agriculture which joins in a constructive way intra- and peri-urban spaces, professional and hobby farms, private, public and auto-appropriate agricultural spaces.The study took place in the city of Rennes, in Brittany (France), on the basis of exploratory surveys, on the basis of participating observation and on the basis of twelve in-depth interviews with gardening citydwellers who live the town and country relationship in terms of productive activities but also in terms of sociability, food practices and agro-ecological initiatives. The main results of the thesis are among four. Firstly, the in-depth description of the modes of involvment in the gardens as a spatial issue which represents today the productive nature in the city. Secondly, thanks to a topological approach and to its associated mapping, the highlighting of lived spaces richness for the inhabitants-gardeners, spaces which exceed widely the only current gardening place. Thirdly, "polytopic networks" built by the agricultural experiences of the city-dwellers are sources of questioning not only on the modalities of farming but also on the food and on their contribution to the construction of the city. Fourthly, the agricultural production can be considered as an urban function reconnecting the inhabitant with his environment, thus renewing the inhabiting modes, itemized as three "gardening attitudes": "clever gardener", "rurban gardener" and "militant gardener" ; Dans le cadre d’une recherche en géographie sociale, cette thèse s’intéresse aux agricultures urbaines, particulièrement à ...