稻作农业是对栽培稻的耕种。现代植物学、遗传学、农学的研究已经揭示出，栽培稻是由普通野生稻经人工培育驯化以后，改变其遗传性状而来的。
稻作农业和相对封闭的环境是欧贵婚姻得以长期存在的条件。
Rice farming and relatively close Settings have been the preconditions of the prolonged Ougui marriage.
本文对长江中游史前古城的地理环境及古城与稻作农业的关系进行了探讨。
The paper discussed geographical environment and the relation between ancient city and cultivated rice in the middle reaches of yangtse river.
到龙山文化时期，海岱地区的南部和东部沿海一带，已经形成了一定规模的稻作农业经济。
The coastal region of East and South in Haidai region had formed a scale rice raising agriculture during the Longshan period.
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