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基于DEM 的黄土高原沟谷节点分形特征研究
苟娇娇1; 王飞1; 罗明良2,3; 邹宝裕2; 白雷超2
Source Publication水土保持学报

以ASTER GDEM 为主要数据源,在黄河中游多沙粗沙区提取22个小流域的沟谷节点(channel

Other Abstract

In the paper,22typical watersheds were selected in the MCSR of middle reaches of Yellow River to
probe the fractal characteristics of CJs.The ASTER GDEM was used as the basic data sources,and the box
dimension(BD)and correlation dimension(CD)were used to measure the difference of the spatial patterns of
the CJs.In addition,the meanings and the influence factors of BD and CD were discussed.Finally,a cluster
analysis was performed based on BD and CD to investigate the difference of soil erosion.(1)The results
showed that the fractal characteristics of CJs were clear,while the dimension value changed with the measure
methods.Among the 22watersheds,if one’s BD was bigger than others,so did it’s CD.(2)The results also
showed that the CJs’fractal characteristics were relevant with the geomorphologic types of Loess Plateau.
Although the value of BD and CD was different in different watersheds,while the sorted groups always
remained the same,which were sorted as loess ridge-hillock gully,broken loess plane,loess ridge gully,loess
plane,loess hill,loess hillock-ridge gully and wind erosion loess sand dunes.(3)When BD and CD were
used as the main input parameters in the procedure of cluster analysis,the results showed that the 22watersheds
could be divided into 4groups.The groups could be classified into 4different erosion ones,namely
serious erosion regions,strong erosion regions,medium erosion regions and light erosion regions.All in all,
the results showed that the fractal dimensions could be used to depict the different patterns of CJs in Loess
Plateau,and that could be regarded as the indicators of erosion of loess gullies.

Keyword沟谷节点 盒维数 关联维 黄河中游多沙粗沙区 Dem
Indexed By中文核心期刊要目总览
Document Type期刊论文
First Author Affilication中国科学院水利部水土保持研究所
Recommended Citation
GB/T 7714
苟娇娇,王飞,罗明良,等. 基于DEM 的黄土高原沟谷节点分形特征研究[J]. 水土保持学报,2016,30(3):109-114.
APA 苟娇娇,王飞,罗明良,邹宝裕,&白雷超.(2016).基于DEM 的黄土高原沟谷节点分形特征研究.水土保持学报,30(3),109-114.
MLA 苟娇娇,et al."基于DEM 的黄土高原沟谷节点分形特征研究".水土保持学报 30.3(2016):109-114.
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