[1]邹任洲,张佳佳,王军朝,等.藏东南帕隆藏布流域波密县城至索通泥石流堆积扇形成的制约因素与特征[J].四川师范大学学报(自然科学版),2018,(03):419-426.[doi:10.3969/j.issn.1001-8395.2018.03.023]
 ZOU Renzhou,ZHANG Jiajia,WANG Junchao,et al.The Restricting Factors and Characteristics of Debris Flow Fans of Bomi-Suotong Village Section of Palong Zangbu River Basin in Southeast Tibet[J].Journal of SichuanNormal University,2018,(03):419-426.[doi:10.3969/j.issn.1001-8395.2018.03.023]
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藏东南帕隆藏布流域波密县城至索通泥石流堆积扇形成的制约因素与特征()
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《四川师范大学学报(自然科学版)》[ISSN:1001-8395/CN:51-1295/N]

卷:
期数:
2018年03期
页码:
419-426
栏目:
基础理论
出版日期:
2018-03-15

文章信息/Info

Title:
The Restricting Factors and Characteristics of Debris Flow Fans of Bomi-Suotong Village Section of Palong Zangbu River Basin in Southeast Tibet
文章编号:
1001-8395(2018)03-0419-08
作者:
邹任洲1 张佳佳2 王军朝2 陈 龙2 李 勇1* 黄 亮1 田 海1
1.成都理工大学 油气藏地质及开发工程国家重点实验室, 四川 成都 610059;
2.中国地质调查局 探矿工艺研究所, 四川 成都 611734
Author(s):
ZOU Renzhou1 ZHANG Jiajia2 WANG Junchao2 CHENG Long2 LI Yong1 HUANG Liang1 TIAN Hai1
1.Chengdu University of Technology State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu 610059, Sichuan;
2.China Geological Survey Institute of Exploration Technology, Chengdu 610081, Sichuan
关键词:
藏东南 帕隆藏布 泥石流堆积扇 流域面积 主沟纵坡降
Keywords:
southeast Tibet palong zangbu river debris flow fans the river basin area groove longitudinal gradient
分类号:
P642.23
DOI:
10.3969/j.issn.1001-8395.2018.03.023
文献标志码:
A
摘要:
藏东南帕隆藏布流域波密县城至索通村段泥石流灾害频发,河谷两岸形成众多差异明显的泥石流堆积扇,深入研究泥石流堆积扇形成的影响因素对于泥石流灾害的防御具有重要的意义.基于野外现场调查,结合高精度遥感影像解译和1:50 000地形图,圈定出帕隆藏布流域波密县城至索通村处36条泥石流堆积扇的范围,并总结研究区泥石流堆积扇分布规律:以古乡为分界,古乡以西至波密县城段泥石流堆积扇的密集程度和面积都比古乡以东至索通村段大; 在帕隆藏布南北岸上,北岸发育的泥石流堆积扇面积明显比南岸大,且著名的古乡泥石流沟就发育在北岸.在此基础上统计并分析流域面积和主沟纵坡降与泥石流堆积扇的关系:对于帕隆藏布流域,堆积扇面积与流域面积和主沟纵坡降之间存在指数关系,堆积扇面积总体上随流域面积的增大而增大,而随主沟纵坡降的增大而减小.分析堆积区特征中的可容纳空间和主河能量对堆积扇的影响,堆积扇可容纳空间和主河能量分别对堆积扇有限制和破坏作用.
Abstract:
The debris flow disasters in Bomi-Suotong Village in the southeast Tibet Palong zangbu River basin are frequent, significant differences of debris flow fans in many areas of the Valley, and it is significant to study the influence factors of debris flow fan in the defense of debris flow disaster. According to the field survey, 1:50 000 topographical map and high precision remote sensing image, the range of debris flow fans in Bomi County to the Suotong Village in Palong zangbu river basin is delineated, and concluded the Palong zangbu river basin from Bomi to Suotong Village distribution of debris flow fans: the intensity and area of debris flow fan in Bomi County to Gu Xiang is larger than that of Gu Xiang to Solton Village. In north-south direction, the area of debris flow on the north shore area is significantly larger than the South, and famous Gu Xiang debris flow occurs on the north shore. Based on the statistics and analysis of the river basin area and the relationship between Groove longitudinal gradient and debris flow fans:Palong zangbu River, there is an exponential relationship between the alluvial fan area and basin area and the main index Groove longitudinal gradient, and alluvial fan area on the whole increases with the increase of the watershed area, and decreases with the increase of the main Groove longitudinal slope increases. The effects of the accommodating space and the energy of the main river on the alluvial fan are analyzed, accommodating space and main river energy respectively have restrictions and damage role on the alluvial fan.

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备注/Memo

备注/Memo:
收稿日期:2017-4-11 接受日期:2017-09-01
基金项目:中国地质调查局地质调查项目(DD20160279)
*通信作者简介:李 勇(1963—),男,教授,主要从事第四纪地貌学及沉积盆地与造山带研究的研究,E-mail:liy@cdut.edu.cn
更新日期/Last Update: 2018-03-15