In the early Yuan Dynasty, the labour system takes the form of working in the work site, and there are specialized gold-diggers.
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- 元初以人场服役的劳役制生产形式为主,有专门的专业世袭户计,后逐渐向听民自行淘采,由地方官府依每岁徵粮例,照元额徵纳的形式过渡。