International audienceArtic is the most sensitive region to the effects of global warming. Indeed, it warms three times faster than the rest of the world. Nowadays, it is an important issue to characterize the responses of these ecosystems to a rise in temperature and the part that Human plays in this mechanism. For several millennia, agriculture and husbandry are known as one of the major anthropogenic impacts on environment. During the last two millennia, global climate warming events allowed two phases of agricultural expansion in South Greenland. The first phase coincided with the medieval Norse colonization between 986 AD and the mid-fifteenth century; the second, corresponds to the modern reestablishment of farmers since 1920, at the ...
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