[1]MA Yueyang,XIA Dong,SHU Qian,et al.Fractal Features of Soil Particles Under Different Ecological Remediation Modes of Xiangjiaba Project[J].Research of Soil and Water Conservation,2023,30(04):83-89.[doi:10.13869/j.cnki.rswc.2023.04.050.]
Copy
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
30
Number of periods:
2023 04
Page number:
83-89
Column:
Public date:
2023-06-10
- Title:
-
Fractal Features of Soil Particles Under Different Ecological Remediation Modes of Xiangjiaba Project
- Author(s):
-
MA Yueyang1,2, XIA Dong1,3,4, SHU Qian1,4, GUO Shiwei1,4, LUO Ting1,2, YAN Shuxing1,3, LIU Daxiang1,2
-
(1.Hubei Provincial Engineering Research Center of Slope Habitat Construction Technique Using Cement-based Materials(China Three Gorges University), Yichang, Hubei 443002, China; 2.College of Civil Engineering & Architecture, China Three Gorges University, Yichang, Hubei 443002, China; 3.College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang, Hubei 443002, China; 4.College of Biological & Pharmaceutical Sciences, China Three Gorges University, Yichang......)
-
- Keywords:
-
soil particle size distribution; fractal dimension; soil nutrient; ecological remediation
- CLC:
-
S152.3
- DOI:
-
10.13869/j.cnki.rswc.2023.04.050.
- Abstract:
-
[Objective] The fractal characteristics of soil particles in slope after different ecological restoration was studied to provide a scientific basis for the fractal dimension as a comprehensive index to evaluate the soil quality of slope in the disturbed area of XiangJiaba Project after restoration. [Methods] Soils in the depths of 0 to 10 cm in six different ecological remediation modes of the Xiangjiaba Project were used in this study. Monofractal and multifractal theory was used to measure and analyze soil particle size distribution(PSD), soil fractal features, soil nutrient contents and their correlations from natural succession and artificial restoration. [Results] Soil particle composition under different ecological remediation modes is dominated by silt and sand particles, with less clay particles and uneven particle size distribution. Clay content was highly significantly positively correlated with DV(p<0.01), significantly positively correlated with soil organic carbon and rapidy available nitrogen(p<0.05), silt content was highly significantly negatively correlated with D1 and D2(p< 0.01), and sand content was highly significantly positively correlatedn with D1 and D2(p<0.01). Soil nutrients were positively and insignificantly correlated with contents of clay and silt and negatively insignificantly correlated with content of sand, D1 and D2. [Conclusion] The soil particles in the disturbed area of Xiangjiaba Project are mainly silt and sand, and the soil texture is coarse. The vegetation concrete restoration technology is conducive to the accumulation of fine particles, so as to improve the soil uniformity, which can be used as a reference for ecological restoration. Silt and sand not only dominate the multifractal parameters, but also promote the nutrient, which can be used as the scale of ecological restoration effect in the study area.