At the same time is not difficult to find that rural labor return is not simply a population regression, in which cycle the labor is considered themselves hierarchical.

同时在研究中我们也不难发现，农村劳动力的回流并不是简单的人口回归，在这一个循环过程中劳动力被自认分层。

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In the hierarchical structure, population ecology is foundation of others grows up and the most active field, but the organizational ecosystem is the important new research topic.

虽然组织种群生态学是组织生态学最活跃的领域，也是研究的核心和基础，但是组织生态系统则是新的重要研究领域。

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