WANG Jiahuan, YANG Xinbing, LIU Yanlin, et al. Experimental Study on Particle Size Characteristics and Hydrological Effect of Mixed Soil of Quarrying Waste Residue and Farmland Soil[J]. 2022, 36(3): 338-344.
DOI:
WANG Jiahuan, YANG Xinbing, LIU Yanlin, et al. Experimental Study on Particle Size Characteristics and Hydrological Effect of Mixed Soil of Quarrying Waste Residue and Farmland Soil[J]. 2022, 36(3): 338-344. DOI: 10.13870/j.cnki.stbcxb.2022.03.048.
Experimental Study on Particle Size Characteristics and Hydrological Effect of Mixed Soil of Quarrying Waste Residue and Farmland Soil
Exploring the difference of particle size characteristics and hydrological effect of reconstructed soil under the different mixture ratio of abandoned slag and farmland soil is of great significance for improving the structural stability
efficient utilization of water resources and utilization of resources in the quarrying wasteland. Taking the abandoned residue of quarry and farmland soil as reconstruction matrix as research objects
the soil column simulation method was used to explore the difference of soil particle size structure and hydrological effect at different both volume ratios of 0:10 (C1)
3:7 (C2)
5:5 (C3)
7:3 (C4) and 10:0 (C5) respectively. The results showed that:(1) The higher ratios of abandoned slag resulted in the greater specific gravity of sand
and the smaller of clay and silt. The maximum specific gravity of sand was 61.50%. The characteristic parameters of particle size
such as dispersion
skewness and kurtosis
decreased
increased and increased respectively
and the non-uniformity coefficient decreased significantly
the curvature coefficient fluctuated between 1 to 3
and the fractal dimension showed an insignificant decreasing trend. The soil structure changed in an unstable direction. (2) The increase of abandoned residue in mixed soil would lead to the increase of bulk density
the decrease of the number of capillary pores and total pores
the increase of the number of non-capillary pores
and the decrease of field water holding capacity
capillary water holding capacity and saturated water holding capacity. At the same time
the changes of initial infiltration
stable infiltration
average infiltration and cumulative infiltration basically showed an increasing trend. There was a fluctuating change in the used time of steady infiltration. Under different ratios
the soil infiltration model fitted well with R2 ≥ 0.856
RRMSE ≤ 0.153. The grey correlation analysis showed that C5 had the best infiltration performance. (3) The mixed soil with the abandoned residue:farmland soil of 3:7 gave the best performance in the particle size structure and hydrological effect.
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references
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Related Institution
河北省木兰围场国有林场管理局,河北,围场
TIAN Chao1,YANG Xin-bing1,LI Jun1,2,CAO Yun-sheng1,ZHANG Wei1,LIU Yang1,BI Ke-jiao1(1.Agricultural University of Hebei,Baoding,Hebei 071000,2.Mulan Forestry Administration of Hebei Province,Weichang,Hebei 068450)
北京市农林科学院林业果树研究所
河北省木兰围场国有林场管理局
TIAN Chao1,YANG Xin-bing1,LI Jun1,2,LU Shao-wei3,LIU Yang1,BI Ke-jiao1(1.Agricultural University of Hebeii,Baoding,Hebei 071000,2.Mulan Forestry Administration of Hebei Province,Weichang,Hebei 068450,3.Institute of Forestry and Pomology of Beijing Academy of Agriculture and Forestry Sciences,Beijing 100093)