摘要
野生动物通道的设计应将环境分析、野生动物调查和工程结构设计作为一个整体。"空地一体"的环境调查包括采用低空无人机遥感技术建立动物通道周边环境的三维空间矢量模型,进行地形、植被、水系等环境条件分析;同时采用普查、样线、痕迹识别等方法开展地面生态环境和野生动物生态调查,并以开阔率指标进行评价。在"空地一体"研究的基础上,确定动物通道桥主要工程指标,明确周边生态环境优化设计内容,并提出了在我国西北荒漠地区高速公路上建设两座上跨式野生动物桥的整体设计方案。
The design of wildlife bridge should take environmental analysis, wildlife survey and engineering construction design as a whole. The environmental survey with integration of space, sky and ground includes establishing the 3 D vector model of the surroundings of wildlife bridge with the technology of low-altitude UAV remote sensing, to analyze the environmental conditions like topography, vegetation and water system. Meanwhile, methods of general survey, line transect, and marks(mainly excrement and footprints) recognition are used to do ground ecological survey and wildlife ecological survey, which are then assessed with openness index. On the basis of survey with space, sky and ground integration, the major indices of wildlife bridge engineering are to be identified, and the design content of bettering the ecological environment of wildlife bridge is to be clarified. The integrated designing plan of the two wildlife bridges over the expressway in the desert of Northwest China is put forward.
作者
蔡志洲
CAI Zhizhou(Environment Protection Center of Ministry of Transportation,Beijing 100013,China)
出处
《环境影响评价》
2020年第3期15-18,23,共5页
Environmental Impact Assessment
关键词
高速公路
无人机遥感
野生动物桥
生境优化
“空地一体”调查
expressway
UAV remote sensing
wildlife crossing bridge
habitat optimization
survey with the integration of space and ground
