辽宁省公路绿化树种的调查与分析

The Investigation and Analysis on the Tree Species for the Highway Greening in Liaoning Province

针对辽宁省冬夏温差大,全年降雨量较少,空气干燥,土壤干旱,土壤养分不足等不利于植物正常生长发育的自然条件,结合公路立地条件的特殊之处及其对公路绿化植物所造成的不良影响,调查总结出辽宁省对公路绿化树种应用的特殊要求,从而为树种的选择提供了依据。同时,通过对树种调查结果的分析评价,筛选出一批能够应用于公路绿化的树种。

In the light of the natural conditions ot Liaoning Province that are unfavorable to the normal growth and development of the plants such as the greater temperature difference between winter and summer, the less annual rainfall, the dry atmosphere, the drought soil, and the insufficient soil nutrient, etc., and connecting with the specialities of highway＇s site conditions and their bad influence on highway＇s greening plants, this paper sums up the special requirements of Liaoning province for the application of the tree species Used for the highway greening, which provides foundations for the selection of the tree species, and through the analysis and evaluation on the application of the tree species for the highway greening, selects a batch of tree species that can be used for the highway greening.