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题名	小江流域泥石流环境背景与活动特征的遥感研究
作者	何易平
学位类别	硕士
答辩日期	2000
授予单位	中国科学院成都山地灾害与环境
授予地点	成都
导师	崔鹏 ; 李先华
关键词	小江流域 泥石流 遥感 环境背景 活动特征
学位专业	自然地理学
中文摘要	小江是国际上著名的泥石流活动地区，泥石流类型多样暴发频繁，对社会经济发展影响极大，对这一地区泥石流形成背景、分布规律、活动特征以及防治对策的研究，具有重要的科学意义和减灾意义。本研究在全流域野外考察的基础上，以计算机和地理信息系统技术作为辅助手段，利用遥感技术对小江流域泥石流环境背景、分布规律、活动特征、物源类型和危害方式进行了系统的研究。主要工作及成果如下：（1）在综合分析遥感影象特征的基础上，提出了泥石流沟的解译标志和解译方法（直观性解译），并对泥石流的环境背景和与泥石流有关的活动行迹进行了解译。（2）对小江流域泥石流活动的地质、地貌、气象、水文、植被、土壤等环境背景条件和人类经济活动情况进行了深入的分析。（3）在航片解译和野外调查的基础上，对泥石流沟的分布规律进行了详细的阐述，进一步分析了泥石流沟分布与构造、岩性和地貌的关系。（4）对小江流域泥石流的活动特征作了一定程度的分析，总结出泥石流具有周期性、伴生性、群发性、季节性和夜发性等活动特点。（5）经过综合分析泥石流的环境背景条件，将小江流域泥石流的固体物质源地分为五类：重力崩滑类、构造地质类、风化剥蚀侵蚀类、河床堆积类以及人类活动类。并对泥石流的发展趋势作了不同尺度的预测。（6）介绍了小江流域泥石流的危害，对泥石流危害强度进行了分区，在综合分析不同危害强度区泥石流发育背景的基础上，因地制宜地提出了泥石流的防治对策。
英文摘要	Xiaojiang basin is famous for its debris flow, characterized by its frequent occurrence and diverse modes. The activity of debris flow greatly affects the economic and social development. It is significant to study the environment background, distribution rule, active characteristics and the solution of relieving hazards of debris flow in this area. Based on field work of the whole watershed, using the technology of computer, geographic information system and remote sensing, the author systemically studies the environment background, regularities of distribution, occurrence characteristics of debris flow in Xiaojiang basin. The main work and achievement as follows: (1)Based on comprehensive analysis of the feature of remote sensing images, the interpretative identification and method (direct-vision method) of debris flow gully were obtained, and the interpretation of debris flow gully and its environmental background has been completed.. (2) Environmental background such as the condition of geology, geomorphology, meterorology, hydrography, plant cover, and soil as well as human economic actives was analyzed. (3) The distributive rule of debris flow gullies is described, and the relationship of tectonic, lithologic character, geomorphy with the distribution was further analyzed. (4) The active characteristics of debris flow are studied deeply. (5) Systemically analyzing the environment background, the source of solid matter of debris flow is divided into five types (gravity geology, tectonic geology, erosion and human activity), and debris flow developmental trends are predicted at different time scales. (6) The hazard intensity regionalization of debris flow has been carried out. After comprehensively analyzing the background of different hazards regions, corresponding treatment is put forward.
语种	中文
学科主题	摄影测量与遥感技术 ; 灾害学
公开日期	2011-07-26
内容类型	学位论文
源URL	[http://192.168.143.20:8080/handle/131551/3294]
专题	成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前）
推荐引用方式 GB/T 7714	何易平. 小江流域泥石流环境背景与活动特征的遥感研究[D]. 成都. 中国科学院成都山地灾害与环境. 2000.

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