|
|||||
|
|
| 基于GIS的北京市延庆县地质灾害易发性区域划分 | |
| 引用本文： | 张有全,宫辉力,李巧刚.基于GIS的北京市延庆县地质灾害易发性区域划分[J].中国地质灾害与防治学报,2006,17(4):17-20,24. |
| 作者姓名： | 张有全 宫辉力 李巧刚 |
| 作者单位： | 1. 中国科学院东北地理与农业生态研究所,吉林,长春,130012;中国科学院研究生院,北京,100039 2. 资源环境与地理信息系统北京市重点实验室,北京,100037 3. 北京市地质研究所,北京,100032 |
| 基金项目： | 北京市教委科技重点项目(05531830) |
| 摘 要： | 随着灾害科学研究的深入，区域地质灾害已成为其重要的研究领域。文章利用遥感技术及GPS工具获取地质灾害的特征信息，在对地质灾害的成因背景分析基础上，运用GIS空间分析功能和地质灾害危险性评价、评估理论构建了地质灾害发育度模型。以北京市延庆县为实验区，采用ArcEngine＆．NET进行易发性分区程序的编写，计算研究区域内单元网格的发育度值。为了克服调查数据的局限性和人为因素，在计算发育度时引入修正系数，从延庆县DEM数据中提取单元格网内的地形坡度值，根据坡度值区间确定修正系数。将发育度计算结果按照一定规律、原则聚类。进行地质灾害易发性区域划分，取得了与实际情况较为一致的结果。基于“3S”技术及灾害地质条件，采用地质灾害发育度模型，可以较好地用于区域地质灾害易发性区域的划分，并能为防灾、减灾提供重要信息。 |
| 关 键 词： | 地质灾害 遥感 GIS 危险性评价 易发性区划 发育度模型 北京市延庆县 |
| 文章编号： | 1003-8035（2006）04-0017-04 |
| 收稿时间： | 2005-11-21 |
| 修稿时间： | 2005-11-212006-06-06 |
Geological hazard susceptibility zonation based on GIS in Yanqing County, Beijing |
|
| ZHANG You-quan,GONG Hui-li,LI Qiao-gang.Geological hazard susceptibility zonation based on GIS in Yanqing County, Beijing[J].The Chinese Journal of Geological Hazard and Control,2006,17(4):17-20,24. | |
| Authors: | ZHANG You-quan GONG Hui-li LI Qiao-gang |
| Abstract: | Regional geological hazards become an important aspect of research on hazards.In this study we implement the( )remote sensing and GPS for extracting the information of the geological hazards. On the basis of background and cause analysis of the geological hazards,and combining with the GIS and evaluation theory of the geological hazard,a new model for geo_hazards distribution parameter was established based on the ArcEngine & NET platform.As a test area,a susceptibility zonation map of Yanqing in Beijing was drawn by this model with calculation of the distribution parameter values of the grid.The paper introduces correction coefficient in the calculation,obtains the gradient value of gird from the DEM data in Yanqing,and determinates the investigation data according to the zone of gradient value in order to overcome the limitation of the investigation data.Following this,there is a clustering of the calculation result of distribution parameter to carry on the susceptibility zonation and get a good coherency with the reality.This successful test exhibits that the model based on the analysis of geological condition and 3S technique is a useful high_resolution model for susceptibility zonation and can provide significant information for the hazard reduction. |
| Keywords: | geological hazard remote sensing GIS risk evaluation susceptibility zonation distribution parameter model Yanqing County of Beijing |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |