| 新源县汇水域单元滑坡灾害易发性评价 |
| |
| 引用本文： | 周平华,李英成,白洁,王恩泉,孟庆伟.新源县汇水域单元滑坡灾害易发性评价[J].测绘科学,2017,42(9). |
| |
| 作者姓名： | 周平华 李英成 白洁 王恩泉 孟庆伟 |
| |
| 作者单位： | 1. 江西省地理国情监测遥感院,南昌,330046;2. 中测新图(北京)遥感技术有限责任公司,北京 100039;中国测绘科学研究院,北京100039;3. 中测新图(北京)遥感技术有限责任公司,北京,100039;4. 新疆维吾尔自治区测绘科学研究院,乌鲁木齐,830000 |
| |
| 基金项目： | 国家重点研发计划子课题 |
| |
| 摘 要： | 针对滑坡灾害易发性难以定量评价的问题,提出了以汇水域为基本统计单元,层次分析法与信息量法相结合的滑坡易发性评价模型。该模型是在综合分析已有监测数据的基础上,建立了坡度、黄土分布、土地表覆被、水系、断层、高程、地表粗糙度、坡向等8类要素与滑坡稳定性的相关性,根据评价结果将滑坡易发性划分为5个不同的等级。基于新疆新源县滑坡易发性评价的实验结果表明,该模型评价结果与滑坡实际分布情况相符,能够准确对不同汇水域灾害易发性进行分级评价,可以为相关部门进行防灾、预警提供一定的数据支持。提出了一种主观判断与客观分析相结合的方法,回答了"什么地方最容易发生地质灾害"的问题。
|
| 关 键 词： | 滑坡灾害 易发性评价 汇水域单元 层次分析法 信息量法 |
Susceptibility assessment of landslide hazard to catchment unit in Xinyuan county |
| |
| ZHOU Pinghua,LI Yingcheng,BAI Jie,WANG Enquan,MENG Qingwei.Susceptibility assessment of landslide hazard to catchment unit in Xinyuan county[J].Science of Surveying and Mapping,2017,42(9). |
| |
| Authors: | ZHOU Pinghua LI Yingcheng BAI Jie WANG Enquan MENG Qingwei |
| |
| Abstract: | Aimed at the difficulty of assessing the vulnerability of landslide hazard,a susceptibility assessment model is proposed by combining analytic hierarchy process and information quantity method,taking catchment as the basic statistical unit.Based on the comprehensive analysis of history data,the proposed model established the relationship between the stability of landslide and eight different factors,including slope,loess distribution,surface cover,water system,fault,elevation,surface roughness,aspect etc.,then the stability of landslide is classified into five different grades.The application result in Xinyuan County in Xinjiang shows the consistence between assessment result and the reality of landslide distribution,it is possible to provide reliable scientific information for relevant departments in disaster prevention and early warning.The method of combining subjective judgment and objective analysis helps to answer the question of “which place is the most reliable to have geological disaster”. |
| |
| Keywords: | landslide disaster susceptibility assessment catchment unit analytic hierarchy process information quantity method |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
