不同时间深翻对毛竹林春笋生长的影响研究

Effectsof Soil Reclamation at Different Time on the Shoot Growth of Phyllostachys pubescens Forests

研究了不同时间深翻(5月份、7月份和11月份)对次年毛竹林春笋生长的影响。结果显示:7月份进行竹林深翻能够促进次年竹林发笋,而11月份深翻则不利于次年的发笋;深翻竹林的发笋直径均显著大于未深翻竹林,以7月份深翻竹林的发笋直径为最大;深翻竹林的退笋直径均小于未深翻竹林,但竹林深翻措施对退笋的大小影响不大。

The effect of soil reclamation at different time（ May,July and November） on the spring bamboo shoot in moso forest next year. The results showed that the soil reclamation in July could promote the shooting in next year,while the reclamation in November would hinder the shooting next year. The diameter of shoots grown in reclaimed moso forest is obviously larger than that in non-reclaimed forest,while the diameter of shoots is the largest in the reclaimed moso forest. The diameter of degraded shoots in the reclaimed moso forest is less than that in non-reclaimed forest but the reclamation measures have little impacts on the size of degraded shoots.