这是海南岛森林变迁的一个重要时期。

This was an important period in the forest vicissitude of the island.

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历史时期森林的变迁与人类的存在及活动密切相关。

The later is closely related to the existence and activities of human being.

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历史时期森林的变迁与人类的存在及活动密切相关。

The later is closely related to the existence and activities of human being.

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