Finally, puts forward the suggestion on the improvements of Zhaoyuan City agricultural land use efficiency.

最后，提出改进招远市农用地利用效率的建议。

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Agricultural labor force aging; Land resources use efficiency; Inverted "u" type curve.

农业劳动力老龄化；土地资源利用效率；倒“U”型关系。

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Strengthen the reasonable use of the agricultural intensive use of limited agricultural land and improve efficiency of comprehensive utilization of agricultural land is of important significance.

加强对农用集约利用的探讨，对合理利用有限的农用地，提高农用地综合利用效益有着重要的意义。

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