红外热像仪在公路小气候监测中的应用  

Monitoring of Micro Climate of Road-area Using Infrared Thermal Tracer

作　　者：李宁[1] 黄树青[1] 顾卫[1] 刘永兵[1] 

机构地区：[1]北京师范大学环境演变与自然灾害教育部重点实验室

出　　处：《公路交通科技》2006年第9期154-158,共5页Journal of Highway and Transportation Research and Development

基　　金：北京市自然基金项目(8062020);交通部西部交通建设科技项目(200331822333);内蒙古交通厅交通建设科技项目(NJ-2005-36)

摘　　要：2004年9月对太原环城高速公路西北环一路段进行了环境调查,用红外热像仪和电子温度计对生态重建后的公路边坡、路面的表面温度及气温进行了定位动态观测。通过对观测数据的修正和比较,分析了路段的热环境状况,对生态重建对小气候的改善作用进行了评价。结果表明:有非接触、可成像优势的热像仪是动态测量表面温度和分析热环境的有力工具;多数时间路面温度高于气温,是空气热量的“源”,植被则相反,是空气热量的“汇”;植被护坡后的坡面温度的日较差比护坡前降低了15℃,明显改善了小气候。On the basis of environmental investigation at the section of north-west part of the Expressway Around Taiyuan City in Sep. 2004, the surface temperatures of road and vegetation protective slope as well as air temperature were investigated by an Infrared Thermal Tracer （TH3102MR） and some thermometers. The micro-thermal environment of this road section and the adjusting function for microclimate of ecological rehabilitation has been assessed. The investigation, result shows that Infrared Thermal Tracer is useful for monitoring surface temperature of different material and the thermal environment due to its advantage of non-contact and imageable. Most time the surface temperature of road would be higher than air temperature above it. Road is a source to provide heat to air, however, the vegetation protective slope was 15 ℃ a sink to receive heat from air. The temperature variance of slope after vegetation protection was lower than that before the vegetation protection （June 2003） . The potential influence of vegetation protective slope on improving microclimate was obvious.

关 键 词：环境影响 公路边坡 生态重建 小气候 

分 类 号：X820.3[环境科学与工程—环境工程]