摘要
桉树种类繁多,不同树种的生态特性不同,对环境的适应能力各异。根据树木的生长表现是树种特性、环境条件和栽培管理的综合反映的原理,对川西平原及盆地西北部平坝、丘陵地区生产性栽培的六种桉树进行适应性观察、设置样地进行生长测定。在分析比较各树种的适应性及抗性,生长进程及生长速率、树高、胸径、冠幅等生长量的基础上,选择二叶桉为该地区城乡四旁绿化的主要树种;赤桉、蓝桉等作为营造速生用材林、薪炭林等的一般绿化树种;柠檬桉则为适宜小气候条件下的环保及风景林树种。按照树种的生态特性、生长发育规律、胸径与冠幅的相关关系、为确定推广发展的桉树树种选择相应的立地条件,在四旁绿化中实行科学合理的树种配置、栽植和养护管理,以发挥其快速生长的优势及其生产、防护和美化作用。
The ecological feature of various species of Eucalyptus is very different. Their growth and development are affected by the condition of environment. According to the properties of different teinds of Eucalyptus, and the condition of environment and the cultural technology, Six samples were used for observation and measurement to height of tree, diameter of tree at the base, diameter of comopy. Eucalyptus botroides is most valuable species to be surrounding trees in Cities and towns. E. camaldulensis and E. globulus and E. robusta may be applied to afforestation. E. citrodora is favourable landscape tree.
关键词
桉树
引种
生态特性
选择
introduction
Eucalyptus
ecological feature
growth
selection of species
