遥感卫片在铁路建设项目生态评价中的应用  

Application of Remote Sensing Satellite Images in Assessment of Ecological Impact for Railway Construction

作　　者：李潇[1] 尹坚[1] 卢少飞[1] 

机构地区：[1]中铁第四勘察设计院集团有限公司,武汉430063

出　　处：《铁道工程学报》2010年第8期34-37,共4页Journal of Railway Engineering Society

摘　　要：研究目的:对铁路生态评价中遥感卫片应用现状及存在问题进行分析,提出改进建议。研究结论:铁路生态评价中应用的遥感卫片存在分辨率低、未经校正、时相不符、现场调查不充分、图像解译和判读误差等诸多问题。对向莆铁路将乐站区间采用中巴资源卫片和Landsat7ETM+卫片进行完全相同的处理,对比林地等缀块分析结果,Landsat卫片综合质量较高,解译、分析准确度较好。为提高生态评价结论的准确性,建议采用较高质量的卫片,卫片一定要校正,加强生态实地调查,提高解译分析质量。Research purposes：This paper analyzes the situation and problems of application remote sensing satellite image in ecological impact assessment for the railway construction and puts forward the improving suggestions.Research conclusions：The problems exist in in application of remote sensing satellite image in ecological impact assessment for railway construction,such as low image resolution,no rectification of image,unmatched timeframe,insufficient field investigation,errors of image interpretation and identification.The independent processes of identical procedure to the images from Sino-Brazilian Resources Satellite and Landsat 7 ETM＋ Satellite were conducted to make a comparative analysis for the alignment of Jiangle Station of Hangzhou-Ningbo Railway.The result shows that a considerable difference exists in the landscape structure,particularly in forestry patches.The Landsat images are better than Sino-Brazilian images.To enhance accuracy of the ecological impact assessment,it is recommended the satellite images with higher quality should be used,the image rectification should be conducted,the site investigation should be done,and the interpretation quality should be improved.

关 键 词：铁路 生态影响 评价 卫片 

分 类 号：P236[天文地球—摄影测量与遥感]