ISSN 1003-8035 CN 11-2852/P
    戴梦兰,陈志波,施国栋. 基于分形理论的浙江省地质灾害分布特征与影响因素分析[J]. 中国地质灾害与防治学报,2022,33(6): 63-69. DOI: 10.16031/j.cnki.issn.1003-8035.202110032
    引用本文: 戴梦兰,陈志波,施国栋. 基于分形理论的浙江省地质灾害分布特征与影响因素分析[J]. 中国地质灾害与防治学报,2022,33(6): 63-69. DOI: 10.16031/j.cnki.issn.1003-8035.202110032
    DAI Menglan, CHEN Zhibo, SHI Guodong. Analysis of the distribution characteristics and influencing factors of geological hazards in Zhejiang Province based on fractal theory[J]. The Chinese Journal of Geological Hazard and Control, 2022, 33(6): 63-69. DOI: 10.16031/j.cnki.issn.1003-8035.202110032
    Citation: DAI Menglan, CHEN Zhibo, SHI Guodong. Analysis of the distribution characteristics and influencing factors of geological hazards in Zhejiang Province based on fractal theory[J]. The Chinese Journal of Geological Hazard and Control, 2022, 33(6): 63-69. DOI: 10.16031/j.cnki.issn.1003-8035.202110032

    基于分形理论的浙江省地质灾害分布特征与影响因素分析

    Analysis of the distribution characteristics and influencing factors of geological hazards in Zhejiang Province based on fractal theory

    • 摘要: 在浙江省地质灾害空间分布特征研究中引入了多重分形方法,基于分形理论研究地质灾害分布的影响因素。研究结果表明:浙江省地质灾害空间分布具有明显的分形特征,西北和东南地区发育较强烈;浙江省地质灾害空间分布与水系分布、降水量、地形坡度、坡高、地层岩性、道路分布及地形地貌有关,其中在降雨量为2232~2565 mm、坡度为25°~35°范围内、坡高为500~1000 m范围内和侏罗系地层范围内,崩塌、滑坡、泥石流灾害发育明显,在山地地形范围内地质灾害易发生。浙江省的道路分布中,省道分布对地质灾害发育的影响比较大;浙江省钱塘江水系和瓯江水系比较复杂,且对地质灾害发育的影响比较大。研究成果进一步明确了浙江省地质灾害分布特征及主要影响因素影响规律,对灾害防治开展具有指导参考意义。

       

      Abstract: The multifractal method is introduced in the study of the spatial distribution characteristics of geological hazards in Zhejiang Province, and the influencing factors of geological hazards distribution are studied based on the fractal theory. The research results show that the spatial distribution of geological hazards in Zhejiang Province has obvious fractal characteristics, and the northwest and southeast regions are more developed; The terrain is related to the topography. Among them, within the range of rainfall of 2232−2565 mm, the slope of 25°−35°, the slope of 500−1000 m, and Jurassic strata, collapse, landslide, and debris flow are obviously developed. Internal geological hazards are prone to occur. In the distribution of roads in Zhejiang Province, the distribution of provincial roads has a greater impact on the development of geological hazards; the Qiantang River and Oujiang River systems in Zhejiang Province are more complex and have a greater impact on the development of geological hazards. The research results further clarified the distribution characteristics of geological hazards in Zhejiang Province and the influence laws of main influencing factors, which have guiding and reference significance for disaster prevention and control.

       

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