[1]施蕾蕾,陈宁生,杨成林,等.娃娃沟流域泥石流活动与植被关系探讨[J].水土保持研究,2008,15(03):96-99,104.
　SHI Lei-lei,CHEN Ning-sheng,YANG Cheng-lin,et al.Relationships Between Vegetation and Debris Flow in Well-vegetated Wawagou Valley[J].Research of Soil and Water Conservation,2008,15(03):96-99,104.
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娃娃沟流域泥石流活动与植被关系探讨

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 15 期数: 2008年03期 页码: 96-99,104 栏目: 出版日期: 2008-06-20
Title:
Relationships Between Vegetation and Debris Flow in Well-vegetated Wawagou Valley
作者:
施蕾蕾1,2,3, 陈宁生1,2, 杨成林1,2,3, 覃伯勇4
1. 中国科学院 山地灾害与地表过程重点实验室, 成都 610041;
2. 中国科学院 水利部 成都山地灾害与环境研究所, 成都 610041;
3. 中国科学院 研究生院, 北京 100049;
4. 宣汉市水利局, 四川 宣汉 636150
Author(s):
SHI Lei-lei1,2,3, CHEN Ning-sheng1,2, YANG Cheng-lin1,2,3, QIN Bo-yong4
1. Key Laboratory of Mountain Hazard and the Earth’s Surface Processes, CAS, Chengdu 610041, China;
2. Institute of Mountain Hazards and Environment, Chinese Academy of Science，Chengdu 610041, China;
3. Graduate School of Chinese Academy of Sciences, Beijing 10039, China;
4. Water Conservancy Bureau of Xuanhan County, Xuanhan, Sichuan 636150, China
关键词:
娃娃沟; 泥石流特征; 植被特征; 遥感数据
Keywords:
Wawagou valley; debris flow characteristics; vegetation; remote sensing datum
分类号:
P642.23;X171.4
摘要:
娃娃沟位于九龙县境内，属川西南高植被覆盖山区。2006年7月16日该流域暴发大规模泥石流灾害，此次泥石流容重高，粗大颗粒比重大，表现出黏性泥石流的特征。通过解译TM遥感影像发现流域内植被覆盖度高达80%，森林覆盖率超过50%，以针阔叶混交林和针叶林为主。分析发现该流域植被与泥石流活动间存在以下关系：流域植被对泥石流的抑制作用是有限的，当泥石流暴发时沟道两侧的部分植被也随失稳土体一起滑入沟道，成为泥石流固体物质的一部分；不同植被类型对泥石流活动控制作用有差异，该区以针阔叶混交林和针叶林为主的植被类型对泥石流活动的控制作用不强。
Abstract:
Wawagou valley is located in the southwest mountainous area of Sichuan province,with high vegetation ratio.On July 16,2006,a large debris flow hazard occurred in Wawagou valley,which is a viscous debris flow.Its concentration is big and transported many big rocks.And frequency of Wawagou valley debris flow is low,but scale is big.Based on TM remote sensing data,it found that vegetation ratio of Wawagou catchment is above 80%,forest ratio is exceed 50%.Coniferous forest and broad-leaved and coniferous mixed forest are the main vegetation types of this area.Analyzing relationships between vegetation and debris flow activity in this valley,some results present.Given it as follows:Firstly,the control effect of vegetation on debris flow activity is limited.Secondly,when debris flow takes place,vegetation on slope will slipping into the channel with failed soil mass.Finally,different types of vegetation have diverse control effect on debris flow activity.

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备注/Memo

收稿日期:2007-6-15。
基金项目:国家自然基金项目“粘粒含量对泥石流源区砾石土强度变化的影响”（40471012）
作者简介:施蕾蕾（1982- ），女，硕士，主要从事泥石流灾害研究。E-mail：shill@imde.ac.cn

更新日期/Last Update: 1900-01-01