西藏昌都市引种美竹无性系种群结构调查

Investigation on the Clonal Population Structure of Phyllostachys mannii Introduced in Qamdo,Tibet

为丰富西藏昌都市城市绿化树种类型,于2017年从云南昆明引种栽植了美竹。文章调查分析了引种3年的美竹无性系种群结构。结果表明:美竹在昌都市区生长较好,能够正常发笋成竹;无性系种群年龄结构表现为正金字塔型,为增长型种群;植株高生长和胸径生长没有出现低矮化、纤细化等种群衰退特征;每丛竹发笋成竹数量一般在6~17株。由此表明,美竹可在昌都地区的城市绿化中扩大种植。

Phyllostachys mannii was introduced from Kunming to Qamdo,Tibet,in 2017,for enriching the urban greening tree species.The paper investigates the clonal population structure of Ph.mannii three years after the introduction.The results show that Ph.mannii grows well in Qamdo,and can shoot normally;the age structure of its clonal population is positive pyramid type,which indicate it is an increasing population;the height growth and DBH growth don't show the characteristics of population decline such as low dwarfing and thinning;the number of bamboo shoots per cluster is generally 6-17.It is suggested that Ph.mannii can be widely applied in the urban greening of Qamdo.