Abstract: 86.5% length of Jinghu High Speed Railway are bridges. Compared with traditional railway on the ground subgrade, high speed railway with bridge has more positive ecological effects. Based on the macro landscape pattern scale, using qualitative and quantitative analysis, the impacts of bridge form on natural corridor and patch ecological effect are conducted. Based on the microscopic scale, illustrated with the important bridges of Beijing Shanghai highspeed railway, the detail impacts of the form of railway bridges on ecology are researched. In order to reduce the ecological impacts, the control and optimization strategy are suggested.

Key words: Beijing-Shanghai highspeed railway; , landscape pattern, form and detail of bridge; , ecology optimization strategy

摘要： 京沪高速铁路86.5%的长度采用桥梁架空铺设的方式。与传统路基铁路比较，这种形式具有积极的的生态效应。首先基于宏观景观格局尺度，结合局部片段，通过定性和定量分析研究出桥梁形式对自然廊道和斑块的生态影响较小。并进一步从中、微观尺度上，依据生态设计原则提出桥梁与生态相关的要素及其设计要求，并结合京沪铁路的典型桥梁进行分析。在此基础上，提出铁路后期运行中进一步减少生态影响的控制和优化策略，保证京沪高速铁路桥梁的生态效应能得以持续发挥。

关键词: 京沪高速铁路；景观格局；桥梁形式及细部；生态优化策略