KMS Institute of Mountain Hazards and Environment,CAS
| 1983年5月20日甘洛县尔古木沟泥石流调查分析 | |
| Alternative Title | INVWESTIGATION OF DEBRIS FLOW IN ERGUMU RAVINE ON MAY 20, 1983, GANLUO COUNY |
| Language | 中文 |
| 罗德富; 钟敦伦; 赵惠林 | |
| Source Publication | 泥石流（3） |
| Editor | 中国科学院成都地理研究所 编 |
| Pages | 27-32 |
| 1986-05 | |
| Publisher | 科学技术文献出版社重庆分社 |
| Publication Place | 重庆 |
| Keyword | 暴雨泥石流 古尔木沟 甘洛县 四川省 |
| Abstract | Ergumu Ravine is about 6km in the south of Canluo County, Sichuan Province. It is a small tributary with water flow all the year round of Ganluo River. The drainage area of it is 2.5 km^2, and the elevation from the lowest point to the highest in the basin is 758m. The gully is about 2.8km long with 236 ‰ of longitudinal gradient. The upper part of the basin covers by different vegetation, but in the lower part and on the both slopes of the gully-almost farm lands. At midnigh of May 20, 1983, the debris flow in rather large scale triggered by stimutation of heavy rainfall occured from the gully. It was 60.mm rainfall in the duration of 25 minutes. The density of the debris flow is 1.7-1.8T/m3 and the largest diameter of stone carried out by the debris flow is 4.1m. Its peak discharge reached to 120-150 m3/sec. The gully was cut down by debris flow to 1.5-3.0m deep. At the mouth of the Ravine there is a lot of depesits with big stone and boulders. Mang of which are in the state of standing, because of crushing in the head of debirs flow surge in bursting. Investigating and analyzing the formation conditions, the activity process and the development tendency of debris flow in Ergumu Ravine, the anthors pointed out that this Ravine, as a dormant debris flow had been stopping its activities for 100 years or so. In recent years, so more plantations were deforested that the eclogoical balance was seriously detroyed so that the debris flow has been revived under the stimulation of heavey rain, and caused a big damage. To stop the occurrence and devlopment of this kind of debris flow, it is most important to remain and restore the ecological balance in the watershed. |
| Other Abstract | 本文对1983年5月20日在四川省甘洛县尔古木沟因暴雨暴发的泥石流原因进行了分析，并对发展趋势进行了讨论。 |
| Document Type | 专著章节文集论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/20819 |
| Collection | 成都山地所知识仓储（2009年以前） |
| Affiliation | 中国科学院成都地理研究所 |
| Recommended Citation GB/T 7714 | 罗德富,钟敦伦,赵惠林. 1983年5月20日甘洛县尔古木沟泥石流调查分析. 泥石流（3）. 重庆:科学技术文献出版社重庆分社,1986:27-32. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 1983年5月20日甘洛县尔古木沟泥石流（833KB） | 专著章节/文集论文 | 开放获取 | CC BY-NC-SA | View Application Full Text | ||
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