基于遥感数据的在建隧道地表生态环境动态变化分析——以广东省大丰华高速鸿图隧道为例

Analysis of dynamic changes in the surface ecological environment of tunnels under construction based on remote sensing data ——Taking the Hongtu Tunnel of Dafenghua Expressway in Guangdong Province as an example

依托广东大丰华高速公路鸿图隧道工程,提取隧道建设前、建设中和营运后三阶段的高分辨率遥感影像,通过人机交互式遥感解译,获取各期影像的地表覆盖分类信息,在此基础上揭示生态环境中的植被、水体、裸地及人类活动的动态变化,研究隧道建设过程中地表环境在时间和空间上的分布规律。结果表明:鸿图隧道建设对隧址区地表植被等生态环境的影响有限;影响鸿图隧道生态环境变化的因素是错综复杂的。研究结果可为隧道建设对地表环境的影响评估提供科学支撑。

Relying on the Hongtu Tunnel Project of Dafeng Hua Expressway in Guangdong Province, Extract the high-resolution remote sensing images of the three stages before construction, during construction and after operation of the tunnel, and through human-machine interactive remote sensing interpretation, obtain the surface coverage classification information of the images in each stage, and reveal the vegetation, water bodies, bare ground and dynamic changes in human activities in the ecological environment on this basis.The distribution law of the surface environment in time and space in the process of tunnel construction is studied.The results show that the construction of Hongtu Tunnel has limited impact on the ecological environment such as surface vegetation in the tunnel site area;the factors affecting the changes of the ecological environment of Hongtu Tunnel are complex. The research results can provide scientific support for the assessment of the impact of tunnel construction on the surface environment.