The interaction between geomorphology and man: The case of the Fars arc (southern Iran)

To settle in a given area, man has to deal with the surrounding environment and the geomorphological processes that shaped it. Landscape defines the available resources and landscape changes are related to tectonics, hydrography and variations in climate and biota. To cope with environmental limitations, man developed efficient techniques and capabilities to survive, making the best use of natural resources. The Fars arc (southern Iran) is known for being the cradle of some of the earliest civilizations in Iran. It comprehends the southeastern sector of the Zagros Mountains, a Cenozoic orogen formed after the collision between Arabia and central Iran. The landscape is dominated by a series of folding structures which isolate internal basins. This configuration, together with arid climate conditions, limited biological resources, and the occurrence of natural disasters such as earthquakes, floods, landslides, water salinity, biological/climatic changes and droughts, all dictated the development and pattern of human settlements. This paper aims to give a broad overview on the deep influence exerted by geomorphological processes, such as tectonics, earthquakes, landslides, sea level fluctuations, and climate changes, on the emergence and development of human settlements in the Fars arc which, with its long-lasting and documented civilization history, represents an ideal test site to study the interaction between nature and man.