青藏铁路景观视觉管理系统研究

Study on landscape visual management system of Qinghai-Tibet railway

铁路建设需要设置取(弃)土场、砂石料点、施工营地等工程场地,这些工程场地如果设计不合理,必将对沿线景观造成破坏,进而对视觉产生强烈的冲击。该文参考美国林务局的“视觉管理系统(VisualManagementSystem,VMS)”和美国土地管理局的“视觉管理(VisualResourcesMana-gement,VRM)”,利用遥感(RS)和地理信息系统(GIS)技术,结合新建青藏铁路沿线景观特点和工程场地的位置、面积、所处的坡度、相对于铁路的距离、沿铁路方向的长度以及相对于本底景观的对比度,建立了新建青藏铁路沿线的景观视觉管理系统,定量分析和评价了铁路建设工程可能对高原景观带来的冲击,并为修改和重新设计工程场地提出了指导性建议。

The railway construction,owing to setting up the construction sites such as taking and discarding soil,sand and stone material fields and construction campsites,will certainly give rise to the strong visual impact on the landscape along the railway if the construction sites design irrationally.This paper refers to the visual management system(VMS)of the US Forest Service and the visual resources management (VRM)of the US Land Management Bureau.Using the techniques of RS and GIS in combination with the landscape characteristics along the Qinghai - Tibet railway,according to the location,area,relative slope and distance from viewer,the length of the construction sites along the railway and the adjacent landscape type of construction sites,visual management system of Qinghai - Tibet railway is analyzed and built and the visual impact of the construction sites were evaluated.On the basis of the above analysis,some suggestions were put forward so as to amend and redesign the construction sites.