和龙市东城区泥石流沟谷形态的非线形特征  

Nonlinear feature of debris flow gully in the Dongcheng District of Helong City

作　　者：汪茜 孙亚红 郑百功[2] 

机构地区：[1]吉林省地质环境监测总站,吉林长春130021 [2]中国建筑材料工业地质勘查中心吉林总队,吉林长春130033

出　　处：《吉林地质》2013年第3期99-101,共3页Jilin Geology

摘　　要：和龙市地处长白山脉东北部,地质环境质量较差,区内常有泥石流、崩塌、滑坡等地质灾害发生。该市东城区具备形成泥石流的条件,泥石流发生频繁。文章根据东城区34条泥石流沟的实际调查资料,采用分形理论,研究了泥石流沟谷形态的分形特征及其在不同观察尺度下分维值的变化特征。这种非线形关系在一定程度上揭示了该区泥石流沟谷演变的非均匀性和自相似性。Helong City is located in the northeast of Changbaishan Mountain range with a bad geologic environment,where debris flow, collapse and landslide always break out. According to the survey data of 34 debris flows gully in Dongcheng District of Helong City,with fractal theory, the writer did systematic research on fractal feature of debris flow gully and its change features of fractal dimensions in different observation scales. The nonlinear relationship may reveal the nonuniformity and self-similarity of debris flow gully evolution.

关 键 词：泥石流 非线性 分形理论 和龙市东城区 

分 类 号：P694[天文地球—地质学]