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探讨樟子松母树林结实多少的原因,找出影响母树结实的主导因子,为合理经营利用母树林提供科学依据。现将连续两年(1986—1987年)对不同密度的母树林结实量调查结果报告如下。
To explore the reason why the Pinus sylvestris var.mongolica stands strong and how to find out the dominant factors that affect the robustness of the Pinus sylvestris var.mongolica forest and provide a scientific basis for the rational management and utilization of the tree. Now for two consecutive years (1986-1987) on the density of the mother of the tree survey results are as follows.