泥石流与环境演变 | |
吕儒仁 | |
刊名 | 山地研究 |
1997 | |
卷号 | 15期号:2页码:91-96 |
关键词 | 泥石流 环境演变 地质灾害 泥石流利用 |
ISSN号 | 1000-002X |
其他题名 | DEBRIS FLOW AND ENVIRONMENTAL CHANGE |
通讯作者 | 吕儒仁 |
中文摘要 | 泥石流具有淤埋、冲毁、冲刷,漫流,腐蚀,直进等特性,其堵河成尖有淤埋堵河溃冲,淤积成扇,垫高河床,改造地貌,改变生态系统等都是逼使环境在新的起点上进行演变,泥石流作用过程的巨量输沙,快速沉积和堆积地貌(多为扇形地)都是可以利用的。 |
英文摘要 | ebris flow is a kind of fluid with abundant mud, sand and stone. On the basis of size of the clay grain contents (>30%, 30%~1%, <1%), it may be divided into mudflow, mud-stone-flow and water-stone-flow. Most of unreasonable aspects of human activity of ten causes debris flow, and spread the disaster. The erosion, transport, deposit and tail-flow action of debris flow processes is intensity. It has special natures of silting, destroying, washing out, overflowing, grinding and advancing in straight line etc. It can change environment as well as force surrounding into evolution on the new start, due to blocking up ariver into lake, occurrence of bursting and washing out after blocking up a river, accumulating into a fan, filling up the river bed and causing it to raise, transforming topography, changing ecological system etc. The history of the debris flow action post glacial period of 12 thousand years is of evidence since. Debris flow not only has one aspect of leading to calamity, but also may be used. For example to a nature of fluid (quickly transporting a great of mud, sand and stone), deposits (seeking for mineral and exploring, extracting information of environment etc. ) and topography( changing soil into farmland, building factory and establishing a station, new building town etc. ) people can all use in order to service economy construction. |
学科主题 | P642.23 |
分类号 | P642.23 |
收录类别 | CSCD ; 北大中文核心 |
语种 | 中文 |
CSCD记录号 | CSCD:389369 |
公开日期 | 2010-08-20 |
内容类型 | 期刊论文 |
源URL | [http://ir.imde.ac.cn/handle/131551/1539] |
专题 | 成都山地灾害与环境研究所_成都山地所知识仓储(2009年以前) |
作者单位 | 中国科学院-水利部成都山地灾害与环境研究所 |
推荐引用方式 GB/T 7714 | 吕儒仁. 泥石流与环境演变[J]. 山地研究,1997,15(2):91-96. |
APA | 吕儒仁.(1997).泥石流与环境演变.山地研究,15(2),91-96. |
MLA | 吕儒仁."泥石流与环境演变".山地研究 15.2(1997):91-96. |
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