WU Zhenghua.The Mud-rock Flow Disaster and Their Touch off Condition by Rainfall in Beijing Area[J].Research of Soil and Water Conservation,2001,8(01):67-72.
北京泥石流灾害及其降水触发条件
- Title:
- The Mud-rock Flow Disaster and Their Touch off Condition by Rainfall in Beijing Area
- Keywords:
- mud rock flow; disaster; rainfall
- 分类号:
- P642.23
- 摘要:
- 介绍了北京山区的泥石流灾害易发区的地质地貌特征、降水气候、泥石流类型及其空间分布特点。重点分析1950年以来，北京山区发生的11次严重泥石流灾害的降水特征，包括灾害发生前10d的降水过程、日降水量达200mm的地区与泥石流发生区、降水强度及泥石流爆发时间的关系等。并指出迎风坡或喇叭口地形，常是降水明显增幅、泥石流最易突发的区域。
- Abstract:
- The characteristics of geology and rainfall climate for the mud rock flow disaster region in Beijing mountain area,the type and space distribution of mud rock flow is introduced. It’s stressed analysis that the rainfall characteristics for 11 severe mud rock flow disasters, including rainfall intensity before 10 days of bursting disaster,the relationship of the rainfall region of surpassing 200 mm/d and the mud rock flow region,the rainfall intensity and the bursting time of the mud rock flow. It’s shown that the windward of mountain or the loudspeaker geography is the region of the rainfall increase obviously and the region bursting mud rock flow easily.
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备注/Memo
收稿日期:2000-10-15
作者简介:吴正华(1940- )，男，湖北省汉川市人，汉族，正研级高级工程师，1965年毕业于北京大学地球物理系，1965-1988年在中国气象科学研究院工作，1988年后在北京市气象科学研究所工作.曾主持和参与十多项国家级和省部级科研项目，公开发表论文近50篇，主持和参与编写著作四本，七次获国家级和少部级科技奖.