Farming is at the interface between several elements of the natural environment (water, soil and climate) and of society as well (economy, politics, demography, etc.). If, for centuries, it has been particularly subjected to the natural environment and its variations (mainly climatic), the evolution of societies and especially techniques have partly turned farming away from it, putting social and economic elements first. This evolution has been clear since the afterwards the Second World War. However, as climate change and global warming are being debated, are climate and farming disconnected from one another? The originality of this study is its location, a watershed deficit, its type of farming system (polyculture and the high proportion of irrigated crops) and the scientific process going with it. It uses different techniques such as surveys, interviews, analysis of climatic and hydrologic change), which will be studied through their links by a systems approach. Not only does this approach enable us to highlight the relationship between the elements involved but it also enables us to locate in time through a study of past episodes in order to outline a prospective study. Our study will therefore have to answer the following questions: what is the role of drought in the evolution of agricultural practices? How changes in agricultural practices may include changes in the leading place of their activities? How the relationship to water can be modified by the adaptation of agricultural practices? And how can it fit in the power relations and be located in space and time?
