CAJ | 학술논문

本文以应用遥感技术，对“5·12”地震都江堰区域地表覆盖状况进行分析评价。选取都江堰市基于2007年的LandsatTM影像和2010年HJ-1卫星CCD影像，通过面向对象和目视解译相结合的方法，提取了草地、河流、旱地、水田、建设用地等9类生态类型环境覆盖信息。结果表明：“5·12”汶川地震对地表生态环境的变化较大，北部山区为泥石流灾害发生的潜在高风险区，应该加强监测和评估，防止次生环境灾害的发生。
본문이응용요감기술，대“5·12”지진도강언구역지표복개상황진행분석평개。선취도강언시기우2007년적LandsatTM영상화2010년HJ-1위성CCD영상，통과면향대상화목시해역상결합적방법，제취료초지、하류、한지、수전、건설용지등9류생태류형배경복개신식。결과표명：“5·12”문천지진대지표생태배경적변화교대，북부산구위니석류재해발생적잠재고풍험구，응해가강감측화평고，방지차생배경재해적발생。
In this study, the remote sensing technology was applied to analyze and assess the earth surface coverage conditions of Dujiangyan City after the Earthquake on May 12th 2008. By the combination of the object-oriented and visual interpretion, the images of the Landsat TM in 2007 and the CCD images from the HJ-1 Satellite in 2011 of Dujiangyan City were selected to get the information of coverage conditions for nine types of ecology environment such as the grassland, river, dry land, paddy field and building site. The results showed that the Earthquake in Wenchuan County on May 12th 2008 resulting in big changes of ecological environment. Especially, the northern mountainous area is the potential high risk range of mud-rock flow. Therefore, the works of monitoring and assessment should be strengthen to prevent the secondary environmental disasters.