Study On The Effects And Mitigation Measures Of Highway Construction Crossing Wetland

In recent years, with the rapid economic growth for the transportation pressure is constantly increasing. Highway, railway construction speed is faster. It comes to nature reserve, highway construction inevitably clashed with nature reserve. Due to the restriction of road line line selection and construction costs, has been more and more highway construction through the nature reserve, the reserve a certain impact on ecological environment. Wetland is the most abundant species diversity ecological system of nature, is the most main habitat of animals. Build sanjiang to inevitable HuLin highway crossing RaoLiHe wetland reserve. This article through on-the-spot investigation and data collection done on RaoLiHe ecological investigation of national nature reserve, built for sanjiang to HuLin highway crossing RaoLiHe instance national nature reserve, ecological environment impact assessment studies.After investigation in the evaluation of zone a total of424species,159kinds of animals, including two protected plants,47species of protected animals, covers an area of road is not within the scope of protection of plant distribution does not affect the protection of plant. Highway construction can be divided into planning and design stage, construction period and operation period of three stages. Planning design phase is mainly route selection and the choice of the ways of road construction, avoid routing through nature reserve is inevitable when should reduce the distance, to avoid ecology sensitive area, five alternatives considering various factors such as economy, technology, society and environment with A line connecting economic point, through the wetlands, construction difficulty and the engineering cost under the factors such as the most reasonable; Through the analysis of road construction way fully consider the lines in the geological, hydrological conditions in roadbed, Bridges through the wetlands, the most reasonable.RaoLiHe wetland reserve status quo and the impact of road construction on the ecological environment characteristic, the analysis of construction period and operation period to the wetland ecological environment influence, put forward the corresponding measures to reduce the impact on wetland ecological environment. Highway construction on ecological environment of the main influence displays in:the impact on the flora and fauna, the impact on water environment, the impact on the ecosystem, soil and water loss, impact, natural scenery, as well as road pollution impact. Major slowdown measures including scientific, reasonable road design, optimization of construction organization plan, the use of advanced construction technology and construction machinery, reasonable arrangement of construction time, strictly control the release of the construction of "three wastes" and noise, increase the quantity of culvert as animal channel to reduce highway barrier, choose landscape restoration of the original vegetation of compatible with the natural landscape. By adopting the corresponding mitigation measures and strengthen the daily supervision, make the highway construction in nature reserve ecological impact to a minimum, to achieve the sustainable development of highway construction and natural reserve and harmonious model.