Nomadic ecology shaped the highland geography of Asia’s Silk Roads

@article{Frachetti2017NomadicES,
  title={Nomadic ecology shaped the highland geography of Asia’s Silk Roads},
  author={Michael Frachetti and C. E. Smith and Cynthia Traub and Tim Williams},
  journal={Nature},
  year={2017},
  volume={543},
  pages={193-198}
}
There are many unanswered questions about the evolution of the ancient ‘Silk Roads’ across Asia. This is especially the case in their mountainous stretches, where harsh terrain is seen as an impediment to travel. Considering the ecology and mobility of inner Asian mountain pastoralists, we use ‘flow accumulation’ modelling to calculate the annual routes of nomadic societies (from 750 m to 4,000 m elevation). Aggregating 500 iterations of the model reveals a high-resolution flow network that… 
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