|
|
|
|
  • 软件名称:基于流域划分的汶川县潜在突发性泥石流危险性评价
  • 软件大小: 0.00 B
  • 软件评级: ★★★
  • 开 发 商: 杨鑫,杨武年,刘汉湖,刘恩勤
  • 软件来源: 《遥感技术与应用》
  • 解压密码:www.gissky.net

资源简介

摘要: 泥石流是我国西南山区常见的一种地质灾害。5·12地震构成了众多隐蔽的不稳定斜坡,在强降雨条件下,这些潜在的不稳定斜坡极易形成突发性泥石流。在流域划分的基础上,基于不同尺度将汶川县划分为不同的流域单元,选取评价因子,建立评价模型,最终实现整个汶川县潜在突发性泥石流危险性评价。结果表明:若按集水阈值20万、30万与40万划分流域单元,则潜在突发性泥石流高危险性及以上单元分别有58、59与30个,占流域单元总数的43.61%、67.05%与57.59%。 关键词: 流域;  潜在突发性泥石流;  危险性评价     Abstract: Debris flow is one of the serious geologic hazards in southwest of China."5.12" Wenchuan earthquake constitute a large number of hidden unstable slopes.In heavy rain conditions,these potentially unstable slopes are very easy to form sudden mudslides.For this purpose,on the basis of the watershed division,the Wenchuan County is divided into different watershed unit using different scales,select the evaluation factor,evaluation model,and achieve the potential sudden whole Wenchuan County Debris Flow Hazard Assessment.The assessment results can provide reference and basis for Wenchuan debris flow disaster prevention and mitigation planning.Meanwhile,the results show that if the watershed scale was 200 000,300 000,400 000,the high and above risk of potential sudden debris flow were 58,59,30,accounting for 43.61%,67.05%,57.59% percent of the total watershed unit.

下载说明

·如果您发现该资源不能下载,请通知管理员.gissky@gmail.com

·为确保下载的资源能正常使用,请使用[WinRAR v3.8]或以上版本解压本站资源,缺省解压密码www.gissky.net ,如果是压缩文件为分卷多文件,请依次下载每一个文件,并按照顺序命名为1.rar,2.rar,3.rar...,然后鼠标右击1.rar解压.

·为了保证您快速的下载速度,我们推荐您使用[网际快车]等专业工具下载.

·站内提供的资源纯属学习交流之用,如侵犯您的版权请与我们联系.