The well-field system was a
Chinese land distribution method since at least 9th century BC (late Western
Zhou Dynasty). It is named after the
Chinese character for well (井 jǐng), which looks like the
# symbol and represents the theoretical appearance for a piece of land under such an organization: the eight surrounding outer blocks being private (私田; sītián), and the central one block being communal or public (公田; gōngtián).
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Area containing one or more wells that produce usable amounts of water or oil.