[1]田 丰,冉有华*,张 军,等.河西走廊山洪灾害危险度区划[J].山地学报,2017,(06):856-864.[doi:10.16089/j.cnki.1008-2786.000287]
　TIAN Feng,RAN Youhua*,ZHANG Jun,et al.Mountain Torrent Hazard Division along Hexi Corridor[J].Mountain Research,2017,(06):856-864.[doi:10.16089/j.cnki.1008-2786.000287]
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河西走廊山洪灾害危险度区划()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2017年06期
页码:
856-864
栏目:
山地灾害
出版日期:
2017-11-30

文章信息/Info

Title:
Mountain Torrent Hazard Division along Hexi Corridor
文章编号:
1008-2786-(2017)6-856-09
作者:
田 丰1; 冉有华2*; 张 军1;  3; 陈万奈1; 刘金鹏4
1.甘肃农业大学 资源与环境学院,兰州730070; 2.中国科学院西北生态环境资源研究院,兰州730000; 3.甘肃省节水农业工程技术研究中心,兰州 730070; 4.甘肃省科学院 地质自然灾害防治研究所,兰州730000
Author(s):
TIAN Feng1; RAN Youhua2*; ZHANG Jun1; 3;  CHEN Wannai1;  LIU Jinpeng4
1.College of Resource and Environmental Sciences, Gansu Agricultural University, Lanzhou 730070,China; 2.Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; 3.Research Center for Water-saving Agriculture in Gansu Province, Lanzhou 730070, China; 4.Geological Natural Disaster Prevention Research Institute, Gansu Academy of Sciences, Lanzhou 730000, China
关键词:
河西走廊;  山洪;  危险度;  区划;  GIS;  IDRISI
Keywords:
Hexi Corridor;  mountain torrent;  hazard degree;  division;  GIS;  IDRISI
分类号:
X43; P642.2
DOI:
10.16089/j.cnki.1008-2786.000287
文献标志码:
A
摘要:
探究河西走廊山洪灾害危险性分布特征,可为该地区山洪灾害监测、预警和防治工程规划提供科学支持,对保障地区人民生命财产安全具有重要的社会意义。从河西走廊山洪灾害防治及预警角度出发,根据河西走廊山洪灾害发生的机制,选取高程标准差、坡度、植被覆盖度、降水、河网密度、泥石流沟密度6个影响因子,以ArcGIS和IDRISI为平台,构建河西走廊山洪灾害危险度区划多准则决策支持模型,完成了河西走廊山洪灾害危险度区划图。结果表明:河西走廊山洪灾害危险度与6个危险因子是函数关系。其中,高程标准差、坡度和植被覆盖度与危险度呈多项式分布,降水、河网密度和泥石流沟密度则与危险度成正相关性; 河西走廊山洪灾害极高度危险区460 km2,占研究区总面积的3.12%; 高度危险区1383.76 km2,占研究区总面积的7.54%; 中度危险区2166.85 km2,占研究区总面积的11.26%; 低度危险区154 787.63 km2,占研究区总面积的65.01%; 极低度危险区33 847.89 km2,占研究区总面积的13.07%。
Abstract:
Hexi Corridor serves as a fundamental passage of the Silk Road Economic Belt in western China, where local engineering infrastructures have suffered greatly from mountain torrent hazard.It is imperative to conduct risk zoning of mountain torrent hazard in this area by monitoring and pre-warning during the planning and execution of engineering projects.In this study, a multi-criteria decision support model was used to evaluate hazard degree by integrating six factors: slope, precipitation, drainage density, elevation standard deviation, vegetation coverage fraction and debris flow gully density.And consequently a map of risk zoning of mountain torrent in Hexi Corridor was finalized for reference to local community.The map comprised past disaster locations in Hexi Corridor and the areas tabbed by extremely high danger, high danger, medium danger, low danger, and extremely low danger occupied 460.00 km2, 1383.76 km2, 2166.85 km2, 154 787.63 km2, and 33 847.89 km2, respectively, accounting for 3.12%, 7.54%, 11.26%, 65.01%, and 13.07% of the total area of Hexi Corridor, respectively.The correlation of the mountain torrent hazard risk level with each of the six impact factors was also determined.There existed a functional correlation between the risk level of mountain torrent disaster in Hexi Corridor and six factors, of which, a multinomial distribution between elevation standard deviation, slope, vegetation coverage fraction and the hazard degree was found, while the precipitation, drainage density and debris flow gully density showed a positive correlation.

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备注/Memo

备注/Memo:
收稿日期(Received date):2016-10-08; 改回日期(Accepted date):2016-11-17
基金项目(Foundation item):甘肃省科学院与中国科学院合作项目(Y52BK51001); 国家自然科学基金(41161066); 甘肃省自然科学基金(1506RJZA003; 1606RJZA076); 甘肃省教育厅项目(2015B-051)[Cooperation Projects between Gansu Academy of Sciences and Chinese Academy of Sciences(Y52BK51001); National Natural Science Foundation of China(41161066); Natural Science Foundation of Gansu Province(1506RJZA003; 1606RJZA076); Education Department Projects of Gansu Province(2015B-051)]
作者简介(Biography):田丰(1991-),男,甘肃镇原人,硕士研究生,主要研究方向:信息化地质灾害风险评价建模与应用[Tian Feng(1991-)male, born in Zhenyuan, Gansu province, M.Sc.candidate, mainly engaged in modeling and application of informational geological disaster risk assessment.]E-mail:18809408806@139.com
*通讯作者(Corresponding author):冉有华(1980-),男,甘肃镇原人,博士,副研究员,主要研究方向:遥感与GIS应用研究[Ran Youhua(1980-), male, born in Zhenyuan, Gansu province, Ph.D., associate research fellow, mainly engaged in the application of remote sensing and GIS.]E-mail: ranyh@ lzb.ac.cn
更新日期/Last Update: 2017-11-30