毛竹春笋生长与笋芽地下分布深度的关系研究

Correlation between Spring Bamboo Shoot Growth and Underground Distribution Depths of Shoot Buds in Phyllostachys pubescens Forests

为探讨毛竹春笋生长状况与笋芽地下分布深度的关系,对山地毛竹林进行调查分析。结果显示:笋芽地下分布的土层深度对出笋直径有显著影响,笋芽分布越深,出笋直径越大;分布在10～20 cm深土层的笋芽出笋数量最多;分布在土层深20 cm以上的笋芽长出的笋最易出笋成竹,而分布在0～10 cm浅层土壤的笋芽最容易退笋。因此,在毛竹林经营中,应探索引导笋芽向深层土壤分布的技术措施,以实现多出笋、出大笋的生产目标。

In order to study the correlation between spring bamboo shoot growth and the underground distribution depth of its spring shoots, the author investigated Ph. pubescens forests on mountains. The results showed that the underground distribution depths of bamboo shoot buds had a significant effect on the diameter of shoots,and the deeper the shoot buds distributed under the soil,the larger in diameter of shoots. The shoot buds distributed at 20 cm deep could the most easily produce more shoots and grow into culm,while those at 0-10 cm deep were not easy to produce many shoots. Therefore,it should explore the technology to induce the shoot buds distributed in deeper soil in the forest management,so as to achieve the production goals of more shoots and big shoots.