论文部分内容阅读
美国枫香金缕梅科、枫香树属(Liquidambar styraciflua)美国枫香树干高耸,树高可达30米,树冠一般近球形,是一种大型的落叶阔叶乔木树种。喜光照,在潮湿、排水良好的微酸性土壤中生长较好。生长速度快,在潮湿土壤中每年生长60~150厘米,在干旱土壤中每年生长40~70厘米。有着枫树叶一样外形的叶片沿着主干交替生长的方式正好与枫树相反,叶片正面是发亮的深绿色而背面是苍白色,到了秋天,叶片由绿色逐渐
Liquidambar styraciflua (Liquidambar styraciflua) American tall gum tree trunk, tree height up to 30 meters, the crown is generally spherical, is a large deciduous tree species of deciduous trees. Hi light, in the wet, well drained slightly acidic soil better growth. It grows fast, grows 60-150 cm annually in moist soil and 40-70 cm annually in arid soil. Leaves with the same shape as Maple Leaf grow alternately along the trunk in the opposite way to the Maple, the front of the leaves is shiny dark green and the back is pale. In autumn, the leaves gradually grow from green to green