| 地质灾害与不同尺度降雨时空分布关系 |
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| 引用本文： | 刘艳辉,唐灿,吴剑波,连建发.地质灾害与不同尺度降雨时空分布关系[J].中国地质灾害与防治学报,2011,22(3):74-83. |
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| 作者姓名： | 刘艳辉 唐灿 吴剑波 连建发 |
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| 作者单位： | 1. 中国地质环境监测院,北京,100081
2. 北京中岩大地工程技术有限公司,北京,100044 |
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| 基金项目： | 国家科技支撑专题项目“强降水对地质灾害影响的评估方法研究”，国家地质环境监测与预报项目“全国地质灾害气象预警预报” |
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| 摘 要： | 降雨是地质灾害最重要的诱发因素之一,开展地质灾害与不同尺度降雨的时空分布研究,分析降雨诱发地质灾害的特点规律,对于提升地质灾害区域预警水平和防灾减灾实践具有重要意义。本文以2006～2007年汛期地质灾害的实际发生情况为例,通过统计分析方法,对区域地质灾害与年降雨量、月降雨量、月暴雨日数、典型降雨过程之间的时空分布关系开展系统分析,研究表明:降雨是群发型地质灾害发生的重要诱发因素,地质灾害的发育密度与年均雨量成正比,地质灾害发育密度最大的区域,其年均雨量最大;地质灾害分布与月降雨量、月暴雨日数的分布总体上具备一定的对应关系,但并不是完全对应的,主要受到典型强降雨过程的落区控制;在地质灾害多发区出现典型强降雨过程时,地质灾害群发。
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| 关 键 词： | 地质灾害 降雨过程 时空分布 不同尺度 |
Spatial and temporal distribution characteristics of geo-hazards and rainfall in different scales |
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| LIU Yan-hui,TANG Can,WU Jian-bo,LIAN Jian-fa.Spatial and temporal distribution characteristics of geo-hazards and rainfall in different scales[J].The Chinese Journal of Geological Hazard and Control,2011,22(3):74-83. |
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| Authors: | LIU Yan-hui TANG Can WU Jian-bo LIAN Jian-fa |
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| Institution: | LIU Yan-hui1,TANG Can1,WU Jian-bo2,LIAN Jian-fa1(1.China Institute of Geo-Environmental Monitoring,Beijing 100081,China,2.Beijing Zhongyandadi Engineering Technology Co.,Ltd.,Beijing 100044,China) |
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| Abstract: | Rainfall is one of inducing factors for geo-hazards.It is important to analyze the relationship between geo-hazards and rainfall in different scales.In the paper,with geo-hazards in the year of 2006-2007,according to statistic method,spatial and temporal distribution characteristics of regional geo-hazards and rainfall,which is in different scales of annual rainfall,month rainfall,month rainstorm days and typical rainfall process,is studied.Results shows： the density of geo-hazards is direct to annual rainfall;the spatial and temporal distribution of geo-hazards is corresponding to month rainfall and rainstorm days,but it is not absolute.The distribution of geo-hazards is controlled by the range of typical rainfall process;there is rainstorm in geo-hazards susceptibility. |
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| Keywords: | geo-hazards rainfall spatial and temporal distribution different scales |
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