[1]WANG Peixin,CHANG Chunping,WANG Rende,et al.Comparison of Flat Sieve and Rotary Sieve for Determining Soil Wind Erodibility of Different Land Uses[J].Research of Soil and Water Conservation,2018,25(01):47-51.
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Comparison of Flat Sieve and Rotary Sieve for Determining Soil Wind Erodibility of Different Land Uses
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
25
Number of periods:
2018 01
Page number:
47-51
Column:
Public date:
2018-02-28
- Title:
- Comparison of Flat Sieve and Rotary Sieve for Determining Soil Wind Erodibility of Different Land Uses
- Keywords:
- flat sieve; rotary sieve; soil erodibility; geometric mean diameter; wind-erodible fraction of soil
- CLC:
- S152.4;S157.2
- DOI:
- -
- Abstract:
- 74 soil samples of Kangbao County of Hebei Province including Grassland, tree windbreak, conservation tillage farmland, conventional tillage farmland were sieved by flat sieve and rotary sieve to determine geometric mean diameter (GMD) and erodible soil fraction (< 0.84 mm dry soil aggregate, EF). The Mann-Whitney U Test and correlation analysis were used to investigate the differences of EF, GMD and < 0.5 mm, 0.84～0.5 mm, 2～0.84 mm, 5～2 mm,20～5 mm, > 20 mm aggregates obtained from rotary sieve and those determined from flat sieve. The EF and GMD obtained from rotary sieve were lower than those obtained from the flat sieve. The results demonstrated that the difference of ≤0.84 mm aggregates was not significant, in contrast, the differences of > 0.84 mm aggregates and GMD of total aggregates were significant. These results further indicated that sieving methods and procedures could significantly influence on determination of soil wind erodibility. The conclusion can provide the theoretical basis for planning wind erosion control measures.
- References:
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1900-01-01