[1]王 钧,欧国强,杨 顺,等.地貌信息熵在地震后泥石流危险性评价中的应用[J].山地学报,2013,(01):83.
 WANG Jun,OU Guoqiang,YANG Shun,et al.Applicability of Geomorphic Information Entropy in the Postearthquake Debris Flow Risk Assessment[J].Mountain Research,2013,(01):83.
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地貌信息熵在地震后泥石流危险性评价中的应用()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2013年01期
页码:
83
栏目:
山地灾害
出版日期:
2013-01-01

文章信息/Info

Title:
Applicability of Geomorphic Information Entropy in the Postearthquake Debris Flow Risk Assessment
作者:
王 钧欧国强杨 顺季宪军陆桂红
1. 中国科学院山地灾害与地表过程重点实验室,四川 成都 610041;
2. 中国科学院水利部成都山地灾害与环境研究所,四川 成都 610041;
3. 中国科学院大学,北京 100049
Author(s):
WANG Jun OU Guoqiang YANG Shun JI Xianjun LU Guihong
1.Key Laboratory of Mountain Surface Process and Hazards, CAS, Chengdu 610041, China;
2. Institute of Mountain Hazards and Environment, CAS, Chengdu 610041, China; 3. University of Chinese Academy of Science, Beijing 100049, China
关键词:
泥石流面积-高程积分地貌信息熵危险性评价
分类号:
P642.23,P931
文献标志码:
A
摘要:
地貌信息熵可以表示流域地貌面受侵蚀的程度,是判断地貌发育演化阶段的量化指标之一。基于流域系统地貌信息熵的原理和方法,采用GIS技术和Matlab、SPSS软件,对“5·12”汶川地震后都江堰市深溪沟流域内41个子流域的面积-高程积分值和地貌信息熵进行计算,研究了各个子流域的地貌发育演化基本特征和泥石流发育情况,并将分析结果和地震后野外实际调查的成果进行了对比研究,结果表明:在烈度为Ⅺ的都江堰深溪沟地震重灾区,地震引发的大量崩塌、滑坡导致松散固体物质广泛堆积于沟道内,不仅为泥石流提供丰富的物源,而且使沟道局部的地貌发生了突变,但通过“地貌信息熵”这种方法无法表达丰富物源的变化和沟道地貌的突变,因此,根据地貌信息熵判断地震后泥石流的危险性具有一定的局限性。为了使地震区泥石流危险性评价的结果更加真实、可靠与可信,必须结合流域的实际情况,对地貌信息熵判定的危险性结果进行综合分析与修正,或者通过多种评价方法进行对比论证和分析。

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备注/Memo

备注/Memo:
收稿日期(Received date):2012-11-13;改回日期(Accepted):2012-12-11。
基金项目(Foundation item):国家自然科学基金重点项目(40830742)。 [Supported by National Natural Science Foundation of China (40830742).]
作者简介(Biography):王钧,男(1988-),汉族,甘肃会宁人,博士研究生,研究方向为流域灾害综合管理。 [Wang Jun (1988- ),male, was born in Huining, Gansu Province, Ph D student, major in basin hazards integrated management.] E-mail: jiasanxineryi1988@163.com *通讯作者(Corresponding author):欧国强 (1958-),男,博士,研究员,主要从事泥石流与泥沙研究。[Ou Guoqiang (1958- ),male, Dr. & Researcher,mainly engaged in the study of debris flow and sediment hazards.] E-mail: ougq@imde.ac.cn
更新日期/Last Update: 1900-01-01