Surveyed from 30 meters above using drones and specialized image analysis software, the site shows the unmistakable outlines of check dams, irrigation canals and cisterns feeding a patchwork of small farm fields. Initial test excavations also confirm the locations of scattered farmhouses and grave sites, said Yuqi Li, a doctoral student in the Department of Anthropology in Arts & Sciences who discovered the site with grant support from the National Geographic Society.
Preliminary analysis, as detailed by Li and co-authors in the December issue of the journal Archaeological Research in Asia, suggests that the irrigation system was built in the 3rd or 4th century A.D. by local herding communities looking to add more crop cultivation to their mix of food and livestock production.
“As research on ancient crop exchanges along the Silk Road matures, archaeologists should investigate not only the crops themselves, but also the suite of technologies, such as irrigation, that would have enabled ‘agropastoralists’ to diversify their economies,” Li said.
“In recent years, more and more archaeologists started to realize that most of the so-called pastoralist/nomad communities in ancient Central Asia were also involved in agriculture,” Li added. “We think it’s more accurate to call them agropastoralists, because having an agricultural component in their economy was a normal phenomenon instead of a transitional condition.”
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