农垦区公路防雪林设计分析研究

Analysis and Research on the Design of Highway Snow-preventing Forest

为降低风吹雪对农垦区公路的危害,本文分析了农垦区公路风吹雪防雪林防雪效果的因素包括林带宽度、树冠密度、树种类型、树高、枝下高等内容,探讨了农垦区公路风吹雪防雪林与风吹雪之间关系,根据公路防雪林的树冠密度越大,树带越宽,树越高,透风率和枝下高度越小,其防雪效果越好的特点,提出了农垦区公路风吹雪防雪林的类型的选择、防雪效果的决定因素和林带宽度的设定。通过实测,得到风速的水平分布情况,从形成积雪的防雪林外侧到汽车通过的公路,风速从14.2 m/s减弱到了2.3 m/s,效果明显。

In order to reduce the hazards of wind-blown snow on roads in agricultural reclamation areas,this article analyzes the factors affecting the snow-prevention effect of roads in agricultural reclamation areas,including forest belt width,tree crown density,tree type,tree height,and height under branches,and discusses the agricultural reclamation area.The relationship between wind-blown snow and snow-preventing forests on highways and wind-blown snow.According to the characteristics of highway snow-preventing forests,the greater the crown density,the wider the tree belt,the higher the trees,the smaller the wind permeability and the height of the branches,and the better the snow-prevention effect.Selection of the type of wind-blown snow-preventing forests in the district,the determinants of the snow-preventing effect,and the setting of the forest belt width.Through actual measurement,the horizontal distribution of wind speed is obtained.From the outside of the snow-preventing forest that forms snow to the highway where cars pass,the wind speed is reduced from 14.2 m/s to 2.3 m/s,and the effect is obvious.