| 基于GIS的信息量法在九龙县地质灾害危险性评价中的应用 |
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| 引用本文： | 吴柏清,何政伟,刘严松.基于GIS的信息量法在九龙县地质灾害危险性评价中的应用[J].测绘科学,2008,33(4). |
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| 作者姓名： | 吴柏清 何政伟 刘严松 |
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| 作者单位： | 成都理工大学地球科学学院,成都,610059;成都理工大学地球科学学院,成都,610059;成都理工大学地球科学学院,成都,610059 |
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| 摘 要： | 地质灾害危险性评价工作需要进行大量的数据处理,处理方法的选择影响评价结果可靠性与评价工作的效率。文中论述了基于GIS的信息量法原理及其在九龙县地质灾害危险性评价中的应用,基于GIS的信息量法综合应用GIS技术的空间分析功能和信息量法的定量评价功能,通过评价因子图层内地质灾害分布密度的统计实现信息值的计算,完成危险性评价。数据易采集,评价工作易操作,效率高,评价结果可靠。
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| 关 键 词： | 地质灾害 地理信息系统 信息量法 危险性评价 九龙县 |
Application of GIS-Based information method to assessment of geohazards risk in Jiulong county |
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| WU Bo-qing,HE Zheng-wei,LIU Yan-song.Application of GIS-Based information method to assessment of geohazards risk in Jiulong county[J].Science of Surveying and Mapping,2008,33(4). |
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| Authors: | WU Bo-qing HE Zheng-wei LIU Yan-song |
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| Abstract: | There is a lot of date to be processed in geohazards risk assessment,the reliability of risk assessment and work efficiency is utterly dependents on the choice of assessment method.The article discusses the principle of GIS-based information method,and the application to geohazards risk assessment in Jiulong county.The GIS-based information method brings the spatial analysis ability of GIS technology and the quantitative analysis of information method all together,the calculation of information value is based on the density statistics of geological hazard,which is got very easily.Based on the GIS-based information method,the risk assessment of geohazards in Jiulong counrry was implemented with great efficiency and speed. |
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| Keywords: | geological hazard geographical information system information method assessment of risk Jiulong country |
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