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[1]PAN De-cheng,SUN Zhuo-yue,WU Xiang-yun,et al.Spatial Heterogeneity of Soil Anti-scouribility in Coal Mining Secondary Bare Slope[J].Research of Soil and Water Conservation,2013,20(03):82-85,91.

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Spatial Heterogeneity of Soil Anti-scouribility in Coal Mining Secondary Bare Slope

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 20 Number of periods: 2013 03 Page number: 82-85,91 Column: Public date: 2013-06-28

Title:: Spatial Heterogeneity of Soil Anti-scouribility in Coal Mining Secondary Bare Slope

Author(s):: PAN De-cheng¹, SUN Zhuo-yue², WU Xiang-yun³, JIANG Chun-guang¹, ZHANG Dong-wei¹, LI Chun-qian¹; 1. Liaoning Institute of Soil and Water Conservation, Chaoyang, Liaoning 122000, China;
2. Fuxin Mining Group Company, Fuxin, Liaoning 123000, China;
3. College of Resources and Environment Engineering, Liaoning Technical University, Fuxin, Liaoning 123000, China

Keywords:: coal mining area; secondary bare slope; soil anti-scouribility; geostatistics; spatial variability

CLC:: X752;S157.1

DOI:: -

Abstract:: In order to quantitatively describe soil anti-scouribility in mining secondary bare slope, the spatial heterogeneity of soil anti-scouribility in Wangzhuang coal gangue pile of Lu An, Shanxi province, was studied by the methods of classic statistics and geostatistics. The results showed that soil of gangue pile has obvious spatial heterogeneity. Exponential model fitted best for soil anti-scouribility index(ANS). Among the long spacing of 2, 2.5, 3 m and 4 m, the longer the long spacing was, the more accurate the model simulation was. And ANS showed strong spatial autocorrelation because nugget coefficient C₀/(C₀+C) was in the range of 10.91%~13.68%. The variability of ANS was mainly controlled by structural factors. The spatial distribution of ANS was apparently strip and block, the most level was distributed between 0.06~0.12 min/g, accounting for 83.02%. From top to foot of slope, ANS first decreased and then increased. ANS obviously followed the equation of ANS=0.0001X²-0.0048X+0.1166.

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