玉江高速公路两侧绿化初探

玉江高速公路两侧绿化面积为39.81 hm2,选择绿化造林树种37种,株数777 639株,野花组合87.2 kg。文中阐述了树种选择、树种配置、树种混交方式、整地和挖塘规格、砌花台、客土以及栽植技术等高速公路两侧绿化中的具体做法。经过近3年的精心抚育管护,大乔木和小乔木的成活率和保存率均达100%,灌木和藤本植物的成活率和保存率达95%以上,超过国家标准。通过多树种(草种)的混交造林配置模式,形成复层林分结构,增加了生物多样性,提高了土壤蓄水保水能力,对稳定路基起到重要作用。

Greening on Both Sides of Yujiang Highway

Greening area on both sides of Yu Jiang highway are 39.81 hm^2 , which total selected 37 kinds tree species of 777 639 trees, and combination of wildflowers are 87.2kg. This paper describes the plant-ing technology i. e. tree species selection, tree species configuration, site preparation, etc. After nearly three years careful tending to the management and protection, survival and preservation rate of big trees and small trees are up to 100% , shrubs and lianas up to 95% , exceeding the national standard. Both of mixed planting of species （grasses） configuration mode and the complex storied sub-structure, increased biodiversity, improved water retention capacity of soil water storage, and played an important role to sta- bilize the roadbed.