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[1]CHENG Jie,WANG Huanyuan,XIE Jiancang,et al.Particle Composition, Fractal Dimension and Texture Change Characteristics of Compound Soil Under Different Ratios[J].Research of Soil and Water Conservation,2020,27(02):30-34.

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Particle Composition, Fractal Dimension and Texture Change Characteristics of Compound Soil Under Different Ratios

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 27 Number of periods: 2020 02 Page number: 30-34 Column: Public date: 2020-03-30

Title:: Particle Composition, Fractal Dimension and Texture Change Characteristics of Compound Soil Under Different Ratios

Author(s):: CHENG Jie^1,2,3,4, WANG Huanyuan^2,3,4, XIE Jiancang¹, MENG Tingting^2,3,4, SHI Lei^2,3,4; (1.Institute of Water Resources and Hydropower Engineering, Xi'an University of Technology, Xi'an 710048, China; 2.Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Xi'an 710075, China; 3.Key Laboratory of Degraded and Unutilized Land Remediation Engineering, Ministry of Natural Resources, Xi'an 710000, China; 4.Institute of Land Engineering and Technology, Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Xi'an 710075, China)

Keywords:: particle size; soil particle volume fractal dimension; texture

CLC:: S155

DOI:: -

Abstract:: In order to investigate the changes of soil particles and texture after the sandstone and sand were incorporated into soil, different ratios of soft rock and sandy soil(1:1, 1:2, 1:5)were used to form soils for plot experiment. The particle characteristics and texture changes of the soft rock and sandy soil-compounded soils with several years of plant growth were analyzed. The results showed that:(1)the silt content of the compound soil of 1:1(0.002～0.05 mm)was higher, accounting for 49.37%, compound soils of 1:2 and 1:5 were mainly composed of sand(0.05～2 mm), the contents was 52.74% and 75.55%, respectively;(2)the fractal dimension of compound soil particles decreased in the order 1:1>1:2>1:5>0:1;(3)there was a significant positive correlation between soil volume fractal dimension and clay volume content, correlations of soil volume fractal dimension with the volume content of silt and sand were weak;(4)while adding different proportions of soft rock in the sandy soil, the texture of sand(0:1)gradually changes from sand loamy soil(1:2, 1:5)to sand loam soil(1:1)and silty soil(1:1). The conclusions of the study indicate that the finer the grain size of the soil is, the higher the fractal dimension of the soil particle volume is, which can well characterize the structural change of the soil texture of structure of sandy land. The texture change of compounded soil(1:1)was the most significant. The clay and silt particles in sandstone improves the structure of aeolian sandy soil, which indicates that sandstone could be used as the material for improving aeolian sandy soil.

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Last Update: 2020-02-25