[1]Zhao Wenzhuo,Qin Fucang,Dong Xiaoyu,et al.Relationship Between Gully Slope Slumping Erosion Characteristics and Topographic Factors in Bare Sandstone Area[J].Research of Soil and Water Conservation,2024,31(05):155-163.[doi:10.13869/j.cnki.rswc.2024.05.012]
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
31
Number of periods:
2024 05
Page number:
155-163
Column:
Public date:
2024-08-10
- Title:
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Relationship Between Gully Slope Slumping Erosion Characteristics and Topographic Factors in Bare Sandstone Area
- Author(s):
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Zhao Wenzhuo1, Qin Fucang1,2, Dong Xiaoyu1, Li Long1, Yang Zhenqi3, Hu Xuebing4, Yao Liqiang5
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(1.College of Desert Management, Inner Mongolia Agricultural University, Hohhot 010018, China; 2.Institute of Forestry Sciences, Hohhot 010000, IChina; 3.Institute of Water Resources for Pastoral Area, Ministry of Water Resources, Hohhot 010020, China; 4.Zhungeer Banner Water Conservancy Development Center, Ordos, Inner Mongolia 010399, China; 5.Inner Mongolia Autonomous Region Water Conservancy Development Center, Hohhot 010020, China)
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- Keywords:
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bare sandstone area; gully Slope; slumping erosion; topographical factor
- CLC:
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S157
- DOI:
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10.13869/j.cnki.rswc.2024.05.012
- Abstract:
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[Objective]The aims of this study are to examine the relationship between gully slope slumping erosion and topographic factors, and to provide a theoretical reference for the mechanism of gully slope slumping erosion and erosion disaster monitoring in bare sandstone area. [Methods]Based on in-situ monitoring and 3D laser scanning technology, the characteristics of slumping erosion and the variation of topographic factors were analyzed. [Results](1)The amount of slumping erosion was significantly correlated with temperature and wind speed, and the correlation coefficients were 0.867 and 0.917.(2)The topographic factor values showed an increasing trend in general, the surface roughness and surface undulations fluctuated more obviously on the slope, and the fluctuations changed slowly in the middle and lower slopes, and the gully density had no obvious regularity.(3)The amount of slumping erosion was significantly correlated with surface roughness and surface fluctuation, and the relationship was polynomial regression, there was no significant correlation with gully density. There was a certain correlation among the topographic factors, and the surface roughness and surface undulations showed a significant positive correlation, and the correlation coefficient was 0.89. [Conclusion]The erosion amount of gully slope in bare sandstone area can be characterized by the numerical fluctuation of surface roughness and surface fluctuation.