摘要
以绿竹Dendrocalamopis oldhami、勃氏甜龙竹Dendrocalamus brandisii的竹蔸苗为研究材料,在南宁市营造试验林,研究其生长情况。结果表明:造林后半年,绿竹的造林成活率为96.87%,新竹长势好,勃氏甜龙竹的成活率为50.63%;2个竹种新竹的数量、地径和高度均与母竹秆基径呈正相关关系,造林后半年至1年的新竹数量、地径、高度均与造林后半年的相应指标呈正相关关系。因此,加强竹蔸造林抚育管理,促进造林前期的生长量,有利于提早成林。
The seedlings of Dendrocalamopsis oldhami and Dendrocalamus brandisii are used for the experimental forest establishment in Nanning in order to study their growth. The results show that 0.5 years after afforestation, the survival rate of D. oldhami is 96.87%, and the new bamboos grow well, while the survival rate of D. brandisii is 50.63%. The culm number, ground diameter and height of new bamboos of two species are positively correlated with the basal diameter of mother bamboo; and the number, ground diameter and height of new bamboo in 0.5-1 year after afforestation are positively correlated with the basal diameter in 0-0.5 years after afforestation. Therefore, strengthening the management of bamboo afforestation and promoting the growth of bamboo forest at the early stage of afforestation are conducive to earlier growth of bamboo forest.
引文
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