Census data from 8th-century Eastern Central Asian oases, combined with the measurements of the oases and data from archives discovered there, allow us to calculate estimates both of the individual oases’ populations and of their respective feeding capacities, which is to say the number of people who could be fed from the output of one hectare of agricultural land. These numbers in turn have parallels in Western Central Asia, where oasis sizes can also be calculated by examination of preserved archaeological landscapes and oasis walls. It is therefore possible to reach a rough idea of the populations dwelling in the main oases and valleys of sedentary Central Asia. As regards nomadic regions, the data are far more hypothetical, but references in certain sources to the sizes of nomad armies and rates of nomadic military levying can allow us to calculate at least the possible scales of magnitude for populations living to the north of the Tianshan.

中文翻译：

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中世纪中亚早期人口估计

来自8世纪东亚中部绿洲的人口普查数据，以及对这些绿洲的测量结果和在该处发现的档案中的数据的结合，使我们能够计算单个绿洲的种群及其各自的摄食能力的估计值，即数量一公顷农地的产出可以养活的人口。这些数字反过来在中亚西部具有相似性，那里的绿洲大小也可以通过检查保存的考古景观和绿洲墙来计算。因此，有可能对居住在中亚久坐的主要绿洲和山谷中的人口有一个粗略的认识。关于游牧地区，数据远非假设，