垦覆深度对毛竹林出笋和成竹影响的试验研究

Experimental Study on Effects of Plough-Tending Depth on Shooting and Grown Bamboos in Phyllostachys edulis Plantations

本文采用不同垦覆深度对毛竹林进行了垦覆抚育试验。结果表明,经不同垦覆深度抚育管理的竹林,出笋数、成竹数和新竹胸径存在不同程度的差异。垦覆深度为25 cm和30 cm的毛竹林,其垦覆后第3年出笋数和成竹数都显著高于其他垦覆深度的竹林;新竹胸径在不同垦覆深度的毛竹林中没有显著差异。

In this paper experiments were done on plough-tending with different depths in Phyllostachys edulis plantations. The results showed that in Phyllostachys edulis plantations plough-tended with different depths there were varying degrees of differences in the numbers of the shoots and grown bamboos and DBH of the new bamboos. In the plantations plough-tended with depths of 25cm and 30cm, the numbers of the shoots and new shoot-grown bamboos were both significantly larger in the 3rd year after the plough-tending than those plough-tended with other depths, and there was no significant difference in the DBH of the new bamboos in plantations plough-tended with different depths, which indicated that in the Phyllostachys edulis plantations plough-tended within a certain scope of depth, the numbers of the shoots and grown bamboos increased as the plough-tending depth increased, while the sizes of the new bamboos didn＇t change much.