[1]Zhang Chengbo,Zhang Shaoliang,Feng Lanqian,et al.Response of fractal characteristics of various soil particle types to wind erosion in a typical wind erosion area of western Northeast China[J].Research of Soil and Water Conservation,2025,32(06):57-67.[doi:10.13869/j.cnki.rswc.2025.06.010]
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
32
Number of periods:
2025 06
Page number:
57-67
Column:
Public date:
2025-10-20
- Title:
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Response of fractal characteristics of various soil particle types to wind erosion in a typical wind erosion area of western Northeast China
- Author(s):
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Zhang Chengbo1,2,Zhang Shaoliang1,2,Feng Lanqian1,2,Wang Hao1,2,Xu Weitao1,2,Zhuang Yaru1,2,Yan Pengke1,2
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(1.School of Resources and Environment,Northeast Agricultural University,Harbin 150030,China;2.Research Centerfor Key Substances Transport and Regulation in Mollisols(Northeast Agricultural University),Harbin 150030,China)
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- Keywords:
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soil types; soil particle composition; fractal dimension; soil wind erosion; wind erosion area of Northeast China
- CLC:
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S812.2
- DOI:
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10.13869/j.cnki.rswc.2025.06.010
- Abstract:
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[Objective] To clarify the response mechanism of different types of soil particle characteristics to wind erosion in the black soil region of Northeast China, and provide a scientific basis for soil conservation in wind erosion areas. [Methods] A typical area in the wind erosion belt of western Northeast China(5 800 km2) was taken as the research object. A total of 122 sampling points were randomly set across the entire area, covering four soil types: aeolian sandy soil, meadow soil, chernozem, and saline-alkali soil, and soil samples were collected from the 0—20 cm and 20—30 cm layers. The soil volume fractal dimension was used to characterize the comprehensive distribution features of soil particles. The wind erosion modulus was estimated using the revised wind erosion equation (RWEQ) model. Environmental factors were obtained by combining field surveys with remote sensing images to comprehensively analyze the response of soil particle fractal characteristics to wind erosion. [Results](1) The content of particles smaller than 50 μm in the surface soil could to some extent reflect the impact degree of wind erosion on the soil in the past. Chernozem had the highest volume percentage of particles smaller than 50 μm(75.45%), indicating a relatively low degree of wind erosion impact, while aeolian sandy soil had the lowest content of particles smaller than 50 μm(52.64%), indicating the greatest degree of wind erosion impact.(2) Aeolian sandy soil had a relatively low vegetation coverage(67.43%) and was the most sensitive to wind erosion. Saline-alkali soil had the highest vegetation coverage(75.46%) and the weakest sensitivity to wind erosion.(3) Wind erosion decreased the fractal dimension of the soil surface layer, reducing the complexity and stability of soil particles, which further reduced the fractal dimension of the plow pan soil.(4) When vegetation coverage and soil moisture decreased, saline-alkali soil and chernozem with higher soil fractal dimension faced a higher risk of wind erosion. [Conclusion] Different types of soil particle fractal characteristics respond differently to wind erosion. The soil fractal dimension can well reflect the past wind erosion risk and the degree of wind erosion impact on soil in the study area.