摘要
文县杨是分布于文县西北部海拔1100～1900米地带的优良乡土树种,它的形态特征稳定,与相近种系有显著区别。作者经过几年研究,鉴定为杨属植物一新种。文县杨生长快,干形通直圆满,尖削度小,5年生树高可达11.5m,胸径19.4cm,材积0.104m^3;树龄29年的伐倒木,主干长20m,小头直径40cm,材积3.843m^3。它繁殖简单易活,侧根发达,固土能力强,且有较强的适应性和抗病虫能力,深受当地群众喜爱。是落实长江上游防护林工程和发展工业人工林的优良种质资源。
A new local poplar species growing in wenxian,Gansu province, has been studied for many years by the authors and nominated it as Wenxian poplar (Populus vuenxianica Z. C. Feng et J. L. Guo. sp, nov) in 1990. In this paper,the growth characteristics,the ecological adaptability and the antipestability of this new species were investigated primarily. The results obtained revealed that this local poplar grew rapidly,reproduced easily, developed vigorously under different ecological conditions and resisted some harmful pests strongly. It is considered that the Wenxian poplar may be a fine germplasm resource for developing the industrial artificial forestry.
出处
《甘肃农业大学学报》
CAS
CSCD
1992年第1期64-68,共5页
Journal of Gansu Agricultural University
关键词
适应性
杨
形态特征
生长特性
Wenxian poplar
biological features
adaptability
local poplar species
