Study Of Ecological Protection And Vegetation Restoration Technology At Ge-Tang Section Of Qingzang Railway

Along the Qingzang Railway, there are rich and diverse climate and environment, vertical elevation changes, permafrost development, a unique habitat conditions, thus forming along the rich and unique ecosystem, rich in rare endemic species, a variety of natural landscapes. At the same time, due to cold Qingzang Plateau, dry morning, less oxygen in the harsh natural conditions, resulting in alpine ecosystems of the Qinghai-Tibet Plateau is very unique, fragile and extremely sensitive to human disturbance of the natural attributes.In this paper, the ecological environment along the railway engineering characteristics of the engineering characteristics of the Qinghai-Tibet railway combination, according to the research, testing situation, the basic control section of Qinghai-Tibet Railway from Golmud to Tanggula sphere of influence of the ecological environment and characteristics of the basic data on the Qingzang Getang section of the railway construction project in ecological protection and restoration mechanisms for post-disturbance studies, and to restore the extent and speed of recovery to predict, propose and engineering integration of ecological protection measures, and explore the construction period and operation period of the way the domain of ecological protection and vegetation restoration measures and methods.In the construction of Qingzang Railway, used a large number of earth and stone, an enormous amount of earth and stone works, they will have a certain degree of vegetation damage, engineering levy occupation of land surface runoff may have an impact, causing shrinkage of wetlands, desertification and soil erosion during construction may also be Wild animals will affect the migration and breeding, permafrost may be subject to a certain degree of disturbance, et al. A comprehensive railway engineering construction of various eco-environmental impacts, mainly includes two aspects, first, due to the construction of surface disturbance caused by land disturbance, vegetation destroyed, but the formation of a variety of direct impact, and second, a long time from a variety of direct impact on the cumulative effect of the a result of the stability of ecosystems, nature reserve balance of integrity and desertification, and destruction cumulative impact. After the construction of alpine vegetation damage is not irreversible, as long as the surface to retain a certain percentage of the original soil, engineering, 30 years after the end of 20 species diversity is basically a resume to the destruction of the level before.On based of protection and restoration of ecological systems theory, we adopt the native vegetation, natural rehabilitation-based artificial measures to maintain the original species of vegetation is a safe approach. According to different categories of projects proposed by various types of construction projects to ease the impact on the ecosystem response measures in place to meet the requirements of the appropriate conditions, artificial restoration of vegetation can be alleviated by works on the ecological environment and vegetation of the overall impact.