Research On The Allocation Of Soil And Water Conservation Plant Measures Of Highway Construction Projects In The Loess Plateau

The Loess Plateau region is one of the areas with the most serious water and soil erosion in China.The serious soil erosion problem not only caused the deterioration of the ecological environment in the region,but also hindered the development of the regional socio-economic system.In recent years,with the improvement of people’s living standards,the number of production and construction projects in the Loess Plateau has also been increasing.This has also led to an increase in artificially increased soil erosion.Highway engineering is one of the most important infrastructure constructions in the Loess Plateau.The highway not only brings convenient traffic,but also can greatly promote the development of the regional economy.However,its construction and construction will also give environmental protection to the areas along the route.Cause a lot of impact and damage,leading to serious soil erosion.Soil and water conservation plant measures are the most widely used and effective soil and water conservation measures in the prevention and control of soil erosion.It not only can effectively achieve the purpose of solidification and water conservation,but also has the effect of improving the climate and beautifying the environment.Based on the theories of soil and water conservation and soil and water conservation,this article takes the highway project as the research object and selects the Loess Plateau as the research project area.According to their different functions,suitable soil and water conservation plants in the Loess Plateau were divided into five types: windbreak and sand fixing plants,solid soil slope protection plants,ornamental green plants,improved soil and economic plants,anti-dust and harmful gas plants.Combining the characteristics of highway engineering,it is divided into eight sub-regions for research,and according to the characteristics of each sub-district,different plant measures are configured.The main conclusions are as follows:For the highway project zoning,the allocation of plant measures was carried out respectively.The specific configuration is as follows: 1 Subgrade project area,mainly consisting of a combination of Qiao,Guan,and Cao,which are mainly wind-proof,sand-fixing and greening on both sides of the road,with solid soil on both sides of theroadbed slope.Slope protection mainly consisting of grass protection slope,and the middle of the highway isolation zone with afforestation-based bush configuration.2 The bridge and culvert tunnel project area is mainly composed of grass protection and slope protection mainly on the sides of tunnel entrances and bridges and culverts.3 The cross-project area is mainly composed of grass-soil revetment mainly consisting of solid soil slope protection,and the combination of empty land afforestation and landscape ecology.4 Auxiliary facilities area is mainly composed of the combination of Qiao,Guan-Grass,and flowers,which are mainly wind-proof,sand-fixing,greening,and landscape ecology.5 The construction of production and living areas is mainly based on the combination of irrigation and grass in the open space of the site.6 The construction road area is mainly based on the combination of arbor,shrub,grass and ground.7 The borrow area is mainly composed of a combination of Qiao,Guan,and Cao,which are mainly windbreak and sand fixation,soil improvement,and economic benefit.8 The waste disposal site area is mainly composed of a combination of Qiao,Guan,and Cao with soil improvement and ecological restoration.