遥感技术在安徽省地质灾害调查中的应用研究

The Application Study on Remote Sensing for Anhui Geological Disaster Investigation

常规的地质灾害调查往往是进行实地踏勘，地面实测，需耗用大量的人力物力。近几年，笔者参加了'安徽省国土资源遥感应用研究'项目，负责遥感地质灾害调查工作，首次利用遥感资料（TM图像和数据磁带）在全省范围内进行地质灾害调查，这不仅弥补地面调查的局限性，而且对较宏观、大规模的面型灾害，能够较客观、准确、快速地查明灾害的类型、规模，卷出灾害影响范围，进行定性-定量的分析。同时为总结分析灾害发生、发展规律，进行灾害区划，预测灾害易发区段及防灾、减灾等提供了科学依据。

The traditional geological disaster survey relies on field reconnaissance with a lot of manpower and material resources. In the project of 《Remote sensing for land resources in Anhui Province》, authors used TM images and tape data to survey the geological disaster for the first time within Anhui province. This method not only extends the limitation of field reconnaissance, but also is more suitable for studying lager scale surface disaster. With which, the quantitative and qualitative study can be used in the geological disaster investigation, and disaster's type, scale and extent can be surveyed objectively，accurately and quickly．The result of survey can be utilized to analyze the causes of disaster and how it develops. Also It can be used to make disaster zoning, predict vulnerable area and offer the scientific basis for disaster preparedness and relief.