西气东输管道工程是我国“十五”期间四大重点建设工程之一 ,第五标段线全长 391.9km,途径两省六县 ,线路走向由西向东。沿程地貌类型多变 ,反复穿越铁路、道路、水渠与河流 ,对沿线环境产生一定影响 ,易造成人为水土流失 ,为减少和防治水土流失 ,必须采取水土保持防护措施 ,以保证输气管道的安全运行 ,改善和提高沿线生态环境质量 The West-East Gas Pipeline Project is one of the four key construction projects during the “Tenth Five-year Plan” period in China. The fifth segment of the fifth-phase pipeline covers a total length of 391.9km and passes through six counties and two provinces with the route from west to east. Various types of landform change along the way, and repeatedly through the railways, roads, drains and rivers, have some impact on the environment along the line, easy to cause man-made water and soil loss, in order to reduce and prevent soil erosion, soil and water conservation measures must be taken to ensure gas pipeline Safe operation, improve and improve the ecological environment along the quality