| 基于GIS的泥石流发生域危险性评价--以大寨沟流域为例 |
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| 引用本文： | 敖浩翔,况明生,刘晶.基于GIS的泥石流发生域危险性评价--以大寨沟流域为例[J].水土保持研究,2006,13(3):171-173. |
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| 作者姓名： | 敖浩翔 况明生 刘晶 |
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| 作者单位： | 西南大学地理科学学院,重庆,400715 |
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| 基金项目： | 华东勘测设计院“白鹤滩水电站大寨沟、海子沟的泥石流影响及防治对策”资助 |
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| 摘 要： | 以大寨沟流域为例,在GIS技术支持下,通过计算机对空间数据获取、处理和分析,建立了该流域的泥石流发生域危险性评价基本数据库。再通过合理选取评价指标、建立指标权重体系、计算综合评价值等一系列程序,建立了泥石流发生域危险性评价的数字环境模型,绘制了大寨沟流域泥石流发生域危险性等级评价图。在GIS技术支持下,实现了大寨沟流域泥石流发生域的危险程度评价,为白鹤滩水电站的顺利建设打下了基础。
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| 关 键 词： | 泥石流发生域 危险性评价 评价指标体系 GIS |
| 文章编号： | 1005-3409（2006）03-0171-03 |
| 收稿时间： | 2005-07-20 |
| 修稿时间： | 2005年7月20日 |
Risk Assessment of Debris Flow Range Based on GIS--Take Dazhaigou Valley as an Example |
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| AO Hao-xiang,KUANG Ming-sheng,LIU Jing.Risk Assessment of Debris Flow Range Based on GIS--Take Dazhaigou Valley as an Example[J].Research of Soil and Water Conservation,2006,13(3):171-173. |
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| Authors: | AO Hao-xiang KUANG Ming-sheng LIU Jing |
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| Institution: | School of Geography Science, Southwest China University, Chongqing 400715, China |
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| Abstract: | Take Dazhaigou valley for example,special data are collected,disposed and analyzed by cpmputer.The basic database of the risk assessment of debris flow range are established based on GIS.After adopting proper appraisable indexes and confirming indexes weight,synthetical appraising value was computed,the digital environmental model of the risk assessment of debris flow and the risk grade diagram of criticality assessment of debris flow range in Dazhaigou valley are established.Under the GIS technique support,the risk assessment of debris flow range in Dazhaigou valley is accomplished. |
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| Keywords: | debris flow range risk assessment the assessment indexes system GIS |
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