地面覆盖对毛竹生长影响的初步研究

A Preliminary Study of the Effect of Mulching on Growth of Phyllostachys edulis

研究了地面覆盖对毛竹林出笋状况及地下结构的影响,结果表明:采用覆盖技术后,毛竹出笋时间显著提前,笋产量大大提高;覆盖后样方内竹鞭总长度为740.48cm/m2,幼壮龄鞭占总鞭长的35.95%,和未覆盖竹林相比,鞭段数有所增加,总鞭长和幼壮龄鞭的比例有所下降;覆盖毛竹林鞭侧芽的总数少于未覆盖毛竹林,但休眠芽中的活芽高于未覆盖竹林。表明连续覆盖2年后的毛竹林地下鞭还具有丰产潜力。

After resorting to mulching technology,the shooting time of Phyllostachys edulis was earlier than before and the shoot production was greatly improved.In mulched Ph.edulis forest,the total length of bamboo rhizomes was 740.48 cm/m2 and the proportion of young rhizomes to the total rhizome length was 35.95%.Compared with unmulched Ph.edulis forest,the number of rhizomes has increased,and the total rhizome length and the proportion of young rhizomes decreased.The number of the buds of the rhizome in mulched Ph.edulis forest was less than that of contrast plots while the proportion of living buds out of the dormant buds in the Ph.edulis forest was higher than those in unmulched Ph.edulis forest.This indicated that underground rhizomes of two-year mulched Ph.edulis forest have the potential of production.