青海省公路建设中的水土保持对策探讨  

Study on the Strategy of Soil and Water Conservation in Construction of Highway in Qinghai Province

作　　者：李宜池 房建宏 徐安花 李焕青 

机构地区：[1]青海省公路科研勘测设计院,青海西宁810008

出　　处：《冰川冻土》2002年第6期796-798,共3页Journal of Glaciology and Geocryology

基　　金：交通部西部交通建设科技项目 ( 2 0 0 13180 0 0 50 )资助

摘　　要：青海省是长江、黄河、澜沧江的发源地 ,水蚀、风蚀和冻融侵蚀都较严重并呈复合型出现 .全省水土流失面积为 33 .4× 1 0 4 km2 ,年土壤侵蚀量为 1 1 5× 1 0 8t,年土壤侵蚀模数为 1 0 0 0～ 80 0 0t·km- 2 .公路建设中对水土保持造成危害虽然面积相对不大 ,但其破坏强度较大 ,极难治理和恢复 .公路建设中坚持“预防为主 ,防治结合 ,因地制宜 ,因害设防”的工作方针 ,明确防治重点 ,科学的进行防治分区、措施布局和措施设计 ,准确计算工程量和工程投资 ,合理安排水土保持措施实施进度 ,制定出切实可行的水土保持实施措施 .Qinghai Province is the source area of the Yangtze River, the Yellow River and the Lancang River. Recently, environmental destruction frequently occurs, such as water erosion, wind erosion, frost and thaw. The soil erosion area in the province t is 334×103 km 2, and the annual eroded soil is 114.95×10 6 tons, with an annual eroded soil modulus of 1 000～8 000 t·km -2 . In the construction of highway in the province, problems with soil erosion is not very large in area, but the damage degree is very high and difficult to manage and repair. The following policies must insist on construction of highway: prevention as the main, combined with maintenance, in a manner appropriate to local conditions, and aiming at aid diseases. The key prevention must be definite, prevention zoning, measures allocation and design must be scientifically made, engineering extent and investment must be truly calculated, program of soil and water conservation must be logically managed, and then convenient strategy for soil and water conservation must be established.

关 键 词：青海 公路建设 水土保持 水蚀 风蚀 冻融侵蚀 防治对策 

分 类 号：U418.5[交通运输工程—道路与铁道工程]