[1]LIU Yanchen,WANG Xuan,ZHOU Lili,et al.The Main Factors Affecting the Soil Detachment Rate on Freeze-Thaw Slopes[J].Research of Soil and Water Conservation,2016,23(02):1-5.
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The Main Factors Affecting the Soil Detachment Rate on Freeze-Thaw Slopes
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 02
Page number:
1-5
Column:
Public date:
2016-04-28
- Title:
- The Main Factors Affecting the Soil Detachment Rate on Freeze-Thaw Slopes
- Keywords:
- soil detachment rate; freeze-thaw slope; grey correlation analysis; nearness degrees analysis; path analysis
- CLC:
- S157.9
- DOI:
- -
- Abstract:
- In order to determine the main factors that affect the soil detachment rate under the freeze-thaw slopes, three factors including slopes (10°, 15°), flows (3 L/min,9 L/min) and original thaw depths (2 cm, 5 cm, 8 cm, 11 cm) which were combined to operate the field scouring test, three approaches (grey correlation analysis, nearness degrees analysis, path analysis) had been taken into account to analyze the effects of these factors on the soil detachment rate separately. The results showed that among the grey relational degree between these factors and the soil detachment rate, flow occupied the first place, followed by slope; among the fuzzy nearness degrees between these factors and the soil detachment rate, stream power occupied the first place, followed by both the flow and the original thaw depth being higher than slope; stream power played the crucial role in determining the soil detachment rate, followed by the original thaw depth and the flow sheer stress exerted the most considerable effect indirectly on the soil detachment rate through other factors. Conclusion that came from the analyses of three approaches showed that stream power, flow, the thaw depth and slope were the main factors influencing the soil detachment rate.
- References:
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1900-01-01