• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 56 Issue 4
Jul.  2021
Turn off MathJax
Article Contents
Journal of Southwest Jiaotong University  > 2021  >  56(4): 818-827.
YANG Ying, HU Xiewen, WANG Yan, JIN Tao, CAO Xichao, HAN Mei. Spatial Development Characteristics of Post-Fire Debris Flow in Bajiaolou Town[J]. Journal of Southwest Jiaotong University, 2021, 56(4): 818-827. doi: 10.3969/j.issn.0258-2724.20200015
Citation: YANG Ying, HU Xiewen, WANG Yan, JIN Tao, CAO Xichao, HAN Mei. Spatial Development Characteristics of Post-Fire Debris Flow in Bajiaolou Town[J]. Journal of Southwest Jiaotong University, 2021, 56(4): 818-827. doi: 10.3969/j.issn.0258-2724.20200015
shu

Spatial Development Characteristics of Post-Fire Debris Flow in Bajiaolou Town

doi: 10.3969/j.issn.0258-2724.20200015
  • Received Date: 04 Feb 2020
  • Rev Recd Date: 04 Jul 2020
    • Available Online: 09 Jul 2020
  • Publish Date: 15 Aug 2021
    Abstract
  • As a special type of debris flows closely relevant to forest fire, the generation of post-fire debris flow often shows a spatial variation. It is of great significance to analyze the spatial development characteristics and its influencing factors for hazard mitigation and reduction. By means of field investigation, in-situ and laboratory tests, and remote sensing interpretation, multi-factor analysis was conducted on the 15 channels in the burned area in Bajiaolou town of Yajiang county in terms of their spatial development characteristics, topography, forest fire, vegetation and rainfall conditions. The results show that the higher the fire intensity, the stronger the soil water repellency and the lower the permeability; moreover, the physical and mechanical properties of soil deteriorate more seriously, which contribute to the generation of post-fire debris flow. The occurrence frequency of post-fire debris flow rises when the burned area become larger and the vegetation cover coefficient lower. In contrast to the large basins, the smaller basins show more vulnerability to post-fire debris flow for their short channel lengths and high longitudinal slopes. Besides, the recurrence time of the triggering rainfall intensity that corresponds to four of five debris-flow events in the study areas is less than 5 years, and the triggering rainfall intensity also increases with time.

     

    • FullText(HTML)
  • loading
    • References(20)
  • NYMAN P, SMITH H G, SHERWIN C B, et al. Predicting sediment delivery from debris flows after wildfire[J]. Geomorphology, 2015, 250: 173-186. doi: 10.1016/j.geomorph.2015.08.023
    NYMAN P, SHERIDAN G J, SMITH H G, et al. Evidence of debris flow occurrence after wildfire in upland catchments of south-east Australia[J]. Geomorphology, 2011, 125(3): 383-401. doi: 10.1016/j.geomorph.2010.10.016
    GARTNER J E, CANNON S H, BIGIO E R, et al. Compilation of data relating to the erosive response of 606 recently-burned basins in the Western U. S.[R]. Washington D. C.: U. S. Geological Survey, 2005.
    GABET E J, BOOKTER A. A morphometric analysis of gullies scoured by post-fire progressively bulked debris flows in southwest Montana,USA[J]. Geomorphology, 2008, 96(3/4): 298-309.
    CANNON S H, GARTNER J E, JAKOB M, et al. Wildfire-related debris flow from a hazards perspective[M]. Berlin: Springer, 2005: 363-385.
    HYDE K D, WILCOX A C, JENCSO K, et al. Effects of vegetation disturbance by fire on channel initiation thresholds[J]. Geomorphology, 2014, 214: 84-96. doi: 10.1016/j.geomorph.2014.03.013
    KEAN J W, STALEY D M, CANNON S H. In situ measurements of post-fire debris flows in southern California:comparisons of the timing and magnitude of 24 debris-flow events with rainfall and soil moisture conditions[J]. Journal of Geophysical Research: Earth Surface, 2011, 116(4): F4019.1-F4019.21.
    胡卸文,王严,杨瀛. 火后泥石流成灾特点及研究现状[J]. 工程地质学报,2018,26(6): 1562-1573.

    HU Xiewen, WANG Yan, YANG Ying. Research actuality and evolution mechanism of post-fire debris flow[J]. Journal of Engineering Geology, 2018, 26(6): 1562-1573.
    胡卸文,韩玫,梁敬轩,等. 汶川地震灾区泥石流若干关键问题[J]. 西南交通大学学报,2016,51(2): 331-340. doi: 10.3969/j.issn.0258-2724.2016.02.012

    HU Xiewen, HAN Mei, LIANG Jingxuan, et al. Some key problems on debris flow in Wenchuan earthquake area[J]. Journal of Southwest Jiaotong University, 2016, 51(2): 331-340. doi: 10.3969/j.issn.0258-2724.2016.02.012
    邸雪颖,陶玉柱. 火后泥石流研究进展[J]. 应用生态学报,2013,24(8): 2383-2392.

    DI Xueying, TAO Yuzhu. Research progress in post-fire debris flow[J]. Chinese Journal of Applied Ecology, 2013, 24(8): 2383-2392.
    陈子龙. 仁额拥沟火后泥石流发育特征及成因机制研究[D]. 成都: 成都理工大学, 2016.
    任云,胡卸文,王严,等. 四川省九龙县色脚沟火后泥石流成灾机理[J]. 水文地质工程地质,2018,45(6): 150-156.

    REN Yun, HU Xiewen, WANG Yan, et al. Disaster mechanism of the Sejiao post-fire debris flow in Jiulong county of Sichuan[J]. Hydrogeology and Engineering Geology, 2018, 45(6): 150-156.
    KEY C H, BENSON N C. Landscape assessment (LA) sampling and analysis methods[M]. Washington D. C.: USDA Forest Service, 2006: 25-26.
    王晓莉,王文娟,常禹,等. 基于NBR指数分析大兴安岭呼中森林过火区的林火烈度[J]. 应用生态学报,2013,24(4): 967-974.

    WANG Xiaoli, WANG Wenjuan, CHANG Yu, et al. Fire severity of burnt area in Huzhong forest region of Great Xing’an Mountains,Northeast China based on normalized burn ration analysis[J]. Journal of Applied Ecology, 2013, 24(4): 967-974.
    中华人民共和国水利部. 土工试验方法标准: GB/T 50123—1999[S]. 北京: 中国计划出版社, 1999.
    BADÍA-VILLAS D, GONZÁLEZ-PÉREZ J A, AZNAR J M, et al. Changes in water repellency,aggregation and organic matter of a mollic horizon burned in laboratory:Soil depth affected by fire[J]. Geoderma, 2014, 213: 400-407. doi: 10.1016/j.geoderma.2013.08.038
    ROBICHAUD P R, WAGENBRENNER J W, PIERSON F B, et al. Infiltration and interrill erosion rates after a wildfire in western Montana,USA[J]. Catena, 2016, 142: 77-88. doi: 10.1016/j.catena.2016.01.027
    张颖,牛健植,谢宝元,等. 森林植被对坡面土壤水蚀作用的动力学机理[J]. 生态学报,2008,28(10): 5084-5094. doi: 10.3321/j.issn:1000-0933.2008.10.056

    ZHANG Ying, NIU Jianzhi, XIE Baoyuan, et al. Dynamics mechanism of the effect of forest vegetation on hill-slop water erosion[J]. Journal of Applied Ecology, 2008, 28(10): 5084-5094. doi: 10.3321/j.issn:1000-0933.2008.10.056
    陈晋,陈云浩,何春阳,等. 基于土地覆盖分类的植被覆盖率估算亚像元模型与应用[J]. 遥感学报,2001,5(6): 416-422. doi: 10.11834/jrs.20010603

    CHEN Jin, CHEN Yunhao, HE Chunyang, et al. Sub-pixel model for vegetation fraction estimation based on land cover classification[J]. Journal of Remote Sensing, 2001, 5(6): 416-422. doi: 10.11834/jrs.20010603
    NGUYEN P, SHEARER E J, TRAN H, et al. The CHRS data portal,an easily accessible public repository for Persiann global satellite precipitation data[J]. Nature Scientific Data, 2019, 6: 180296.1-180296.10. doi: 10.1038/sdata.2018.296
    • Relative Articles
    • Supplements(0)
    • Cited By
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Figures(11)  / Tables(4)

    Get Citation
    PDF
    XML
    Article views(415) PDF downloads(18) Cited by()
    Proportional views
    Related

    Copyright © 2009 Journal of Southwest Jiaotong University

    Address: RM449 & 451, Administrative Building, Xipu Campus, Southwest Jiaotong University Western Hi-tech Zone, Chengdu, Sichuan 611756, P. R. China

    Tel: 028-66367562Fax: 028-66366552Email: xbz@home.swjtu.edu.cn

    Supported by: Beijing Renhe Information Technology Co. Ltd  support: info@rhhz.net

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return