On Monitoring and Controlling Measures for Soil Erosion and Water Loss of West Crude Oil Pipeline Project in Gulang Section

MA Xiao-yan1,DI Li1,FU Zhi-e2,HU Xiao-hong3,HUANG Hai-xia4,LIANG Bei4,HOU Tao5(1.College of Resources and Environment Sciences,Gansu Agricultural University,Lanzhou 730070,China; 2.Soil and Water Conservation Workstations of Wuwei City,Wuwei 733000,Gansu,China; 3.Soil and Water Conservation Workstations of Tianzhu County,Tianzhu 733015,Gansu,China; 4.College of Forestry,Gansu Agricultural University,Lanzhou 730070,China; 5.Huaneng Luqu Hydropower Development Co.Ltd.,Lanzhou 730070,China)

Crude Oil Pipeline Project;soil erosion monitoring;controlling measures

Based on the field survey,the Soil Erosion situation caused by Western Crude Oil Pipeline Engineering in the section of Gulang from 2005 to 2007 was monitored and analyzed by using the standard stake method.The results show that this region is typical of wind erosion,the modulus of soil erosion is between 2 500 and 5 000 t/km2,and the degree of erosion is moderate.Some controlling measures are suggested,including engineering measures for protection,such as laying out rubble mound which is one type of gravity retaining wall and cutting slope aided by open type water diversion,seepage control measures,strip of slope protection and so on.Meanwhile,Ulmus pumila,Caragana korshinkii Kom.,Agropyron cristatum L.and Sophora alopecuroides Linn and other trees,which have the developed root system and strong adaptability to steady slope,are chosen to prevent the new soil erosion along with the project.