Saihanba: A Green Legend

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At the northernmost tip of Hebei Province, there is a dense forest - Saihanba. In the past 57 years, it has become a "natural oxygen bar" with six forest farms covering a total forested land of over 73,000 hectares, with the forest coverage rate reaching 80%. It used to be a land facing severe encroachment by drifting sand. It was the work of three generations of forest workers here.