Study On Plant Selection And Vegetation Configuration Of Protection The Slope Of Railway Roadsides

Railway slope protection have many advantages,such as ecological restoration,soil and water conservation and landscaping. Slope used the vegetation protection, the construction of environment-friendly, conservation of natural resources railway is of great significance. As China's railway Construction booming development, the green channel to the building, the types of plants to study revetment railway Selection and rational distribution of great significance.The research of this paper are as following three aspects:In the first place, we make a survey of the vegetation protection status toward part of the railway and highway in china. The survey content including the main plant species and allocation mode of the vegetation protection, and the effective of slope protection. Then provide the basic information and basis for railway roadside vegetation protection.In the second place, research the slope of vegetation protection rational allocation model. According to principles of restoration ecology, the principle of succession, niche theory, operating principles of natural forest near, combine with he investigation and analyze the applicable slope vegetation allocation mode: The mode of shrub, liane combine with grass, the mode of pioneer species combine with constructive species, the mode of rhatany combine with graminaceous plant and the mode of different type of herbage. According to different characteristics of the railway slope, We can use one of the mode, we also can use the combination of several modes.Finally is the division study aim to the railway vegetation protection of china. China has a vast territory , there are big difference within vegetation types, topography and soil types. The major limiting factor of the slope are different, so the requirements of the slope is not the same. Therefore, the division are the basis of the the establishment of the berm the premise of the plant resources. According to China's physical geography, climate characteristics, and the type of vegetation, divided china into nine regional: northeast China, north China, Inner Mongolia in the east, northwest, east China areas, the Qinling Mountains - Bashan areas, southern China, the Qinghai-Tibet Plateau in southwest China.Establish the regional railway berm plant resource on the basis of the division. Through the investigation, access to vast literature selected for the regional railway slope protection plants. The main pool of resource are native plant-based, with strong resistance, rich resource, developed root system, and other advantages, including shrubs, vines, herbal three types.