无人机影像在铁路景观格局定量分析中的应用

Application of UAV image in quantitative analysis of landscape pattern of railway

以京沪高速铁路(镇江南站段)为例,利用无人机遥感数据,借助GIS空间分析方法对该段的土地利用分类现状进行分析,并在此基础上使用与土地分类变化关联性较强的景观格局指数,对研究区生态系统结构及高速铁路建设后的景观格局特征进行了定量分析评价。结果表明:无人机影像在铁路景观生态环境评价中能够得到很好的应用;本文所选取的景观格局指数代表的景观结构及其特征是适合的,能够保证生态环境影响评价的科学性;建成后的京沪高铁(镇江南站段)景观格局整体较为一般,生态系统遭受破碎,需要更科学合理的生态规划来设计和改变景观结构。

Taking the Beijing-Shanghai high-speed railway （Zhenjiangnan Railway Station） as an example, with the support of the UAV remote sensing data and GIS, this paper analyzes the current situation of the land use classification by GIS spatial analysis method. In addition, this paper evaluates the ecological system structure and makes quantitative analysis on landscape pattern characteristics after the high-speed railway was completed. The results show that the UAV image can be applied to the railway landscape ecological environment evaluation; selected landscape pattern represents the landscape structure and its characteristics are appropriate to ensure the scientific assessment of the eco-environmental impact. The natural ecological system of the study area suffers from destruction. More scientific and reasonable ecological planning should be used to design and change the landscape structure.