Response analysis of valley settlements to the evolution of debris flow fans under different topographic conditions: a case study of the upper reaches of Min River, China
Response analysis of valley settlements to the evolution of debris flow fans under different topographic conditions: a case study of the upper reaches of Min River, China
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不同地形条件下流域聚落对泥石流扇演化的响应分析——以闽江上游为例
DOI：
10.1007/s10064-019-01641-9
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发表时间：
2019-11
影响因子：
4.2
通讯作者：
Cheng Miao
中科院分区：
文献类型：
--
作者：
Mingtao Ding;Chuan Tang;Cheng Miao
以岷江上游为研究对象，探讨了泥石流扇形成与地形的关系。结合沉降和泥石流事件的历史统计数据，有3年（1994年、2004年和2014年）的可比数据。在遥感（RS）和地理信息系统（GIS）技术的支持下，分析了不同海拔、坡度和坡向地形条件下，沟谷聚落和泥石流扇的分布特征及其演变规律。运用回归分析方法，分析了沟谷沉降与泥石流堆积扇演化的耦合关系。结果表明，岷江上游河谷聚落和泥石流扇的分布特征在不同地形条件下表现出高度一致性和趋同性，且相互间存在响应关系。随着海拔的升高，聚落和泥石流扇都呈线性增加，随着时间的推移，泥石流堆积的山谷扇分布的变化率先增加后减少。就坡度而言，两个参数均符合两个多项式函数模型，即河谷沉降随泥石流堆积扇的增加先增大后减小。在坡面上，随着泥石流扇密度变化率的增大，沟谷聚落数量增多。该研究将为岷江上游泥石流扇演化的河谷聚落对策提供一定的帮助。
The upper reaches of Minjiang (Min) River were selected to research the relationship between debris flow fan formation and topography. Combining the historical statistical data of settlement and debris flow events, there are 3 years (1994, 2004, and 2014) for which comparable data are available. With the support of remote sensing (RS) and geographic information system (GIS) technology, the distribution characteristics and evolution of valley settlements and debris flow fans in terrain conditions with varying elevation, slope, and slope aspect are analyzed. The coupled relationship between valley settlement and debris flow accumulation fan evolution is analyzed by regression analysis. The results show that the distribution characteristics of valley settlements and debris flow fans in the upper reaches of Min River show high consistency and convergence in different topographic conditions, and they have a response relationship with each other. With elevation, both settlements and debris flow fans increase linearly with each other, and, over time, the rate of change of the distribution of valley fans with debris flow accumulation increases then decreases. In regard to slope, both parameters conform to two polynomial function models, that is, the river valley settlement increases first and then decreases with the increase of debris flow accumulation fans. For the slope aspect, the number of valley settlements increases with the increase of the change rate of debris flow fans density. The study will provide some assistance for the countermeasures on valley settlements to the evolution of debris flow fans in the upper reaches of Min River.
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影响因子：
2.5
作者：
Cheng Genwei
通讯作者：
Cheng Genwei
DOI：
10.1016/0148-9062(75)90359-9
发表时间：
1975-07
期刊：
Ground engineering
影响因子：
--
作者：
J. Knill
通讯作者：
J. Knill
影响因子：
3.6
作者：
D. Vandine
通讯作者：
D. Vandine
DOI：
--
发表时间：
2012-06
期刊：
--
影响因子：
--
作者：
Af Kamona
通讯作者：
Af Kamona
芦山与汶川地震多发区地质灾害分布特征对比分析
影响因子：
2.8
作者：
Ding Mingtao;Miao Cheng
通讯作者：
Miao Cheng