NI Hua-yong.Geomorphologic Characteristics of Typical Debris-flow Basins in Hailuogou Scenic Spot and Disaster Prevention[J].Research of Soil and Water Conservation,2010,17(01):154-158.
海螺沟景区典型泥石流流域地貌特征及灾害防治
- Title:
- Geomorphologic Characteristics of Typical Debris-flow Basins in Hailuogou Scenic Spot and Disaster Prevention
- Keywords:
- Hailuogou; scenic; spot; debris; flow; geomorphology; prevention
- 分类号:
- P642.23
- 摘要:
- 海螺沟景区泥石流对当地居民和外来游客的生命安全、景区公路和旅游设施以及景区生态环境构成严重威胁,严重影响到景区旅游业的发展.在查明景区内泥石流沟分布的基础上,对景区内泥石流流域地貌特征进行初步分析,探讨景区内泥石流流域地貌的演化模式,采用面积-高程分析方法对泥石流流域地貌所处的发育阶段进行判别,发现景区内泥石流沟主沟长度和流域面积之间呈现出明显的幂函数关系,并且所有泥石流沟现正处于壮年期或壮年偏幼期发育阶段;最后提出了景区泥石流的防治措施.
- Abstract:
- On the basis of field investigation and former researches,10 typical debris-flow gullies were found in the Hailuogou scenic spot,Sichuan province,Southwest China,which have been threating the life safety of both local residents and vistors,the tourism equiments such as roads and cableways,as well as the environments.In this paper,the geomorphologic characteristics of the above-mentioned 10 typical debris-flow gullies were analyzed prelimarily including the relation between drainage area and gully length,the evolution model of the drainage basin of debris-flow gully and the differentiation of developing stage of debris-flow gullies through the application of area-elevation-curve method.And it was concluded that a power-law relation is existed between debris-flow-gully drainage area and gully length and that all the debris-flow gullies are at the prime stage which indicates a great probility of the occurrence of serious debris flows in the future.In the end of this paper,some prevention measures were advised including both the non-engineering meaures and engineering measures.
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备注/Memo
收稿日期:2009-8-30。
基金项目:中国地质调查局“四川泸定县地质灾害详细调查项目”(项目编号1212010640503)
作者简介:倪化勇(1979- ),男,硕士,山东临朐人,主要从事泥石流灾害预测预报、评价与灾害地貌的研究.E-mail:nihuayong@126.com