The smaller the canopy density of a forestis, the less the male cones are, and the smaller the ratio of male cones to female cones is.
林分组成对球花量的影响。立地条件对球花量的影响。
The smaller the canopy density of a forestis, the less the male cones are, and the smaller the ratio of male cones to female cones is.
林分组成对球花量的影响。立地条件对球花量的影响。
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