RESEARCH ON THE INFLUENCE OF THE CONSTRUCTION OF OIL PRODUCT PIPELINE PROJECT ON SOIL AND WATER LOSS IN SOUTHWEST CHINA

According to the features of high mounain and deep valley,crossing river systems,abundant rainfall,high frequency and great intensity of precipitation,barren heavily and fragile ecological environment in the region along oil product pipeline project of southwest China,studied the soil erosion newly arising caused by the project construction.The forms of soil erosion newly arising caused in the process of pipeline project construction shown as water erosion,gravitational erosion and mixed erosion.The soil erosion caused in the construction phase of project mainly occurred in the process of pipe laying,plaza constructing and waste soil and residue piling.