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河北省塞罕坝机械林场是上世纪60年代初期国家投资创办的大型国有林场,目前大部分林分进入中龄林和近熟林,近成过熟林分生长量开始下降,且全场抚育高峰期已过。
The Saihanba mechanical forest farm in Hebei Province is a large-scale state-owned forest farms invested by the state in the early 1960s. At present, most of the stands are in the middle-aged and near-mature forests. The growth of nearly mature stands begins to decline, The peak has passed.