论文部分内容阅读
物纤维毯是一种非常优良的护坡材料,但是在工程实践中发现,公路边坡绿化采用不同的混播比例,在施用植物纤维毯之后,其出苗率及植物品种之间的比例关系与普通撒播存在较大差异,与普通撒播后覆盖无纺布的方式相比,出苗率明显下降,同时品种比例也与之前不同。通过小区实验,发现植物纤维毯的构造对种子出苗存在一定程度的阻碍作用,从而造成出苗率下降。不同植物比例关系发生变化的原因,主要在于植物子叶结构不同,受纤维毯阻碍的程度不同,双子叶植物更容易受到阻碍。
Material fiber blanket is a very good slope protection material, but in engineering practice, it is found that highway slope afforestation uses different mix proportion. After application of plant fiber blanket, the proportion of its emergence rate and plant variety is similar to that of common sowing There is a big difference, compared with the ordinary method of covering non-woven sowing, the emergence rate decreased significantly, while the proportion of different varieties with the previous. Through cell experiments, it was found that the structure of plant fiber blanket has a certain degree of impeding effect on seed emergence, resulting in the decrease of emergence rate. The reason for the change in the proportion of different plants mainly lies in the different cotyledon structure of the plants and the degree of obstruction by the fiber blanket, and the dicotyledons are more easily obstructed.