[1]WU Min,FAN Haoming,LIU Shuang,et al.Effects of SAR/EC and Water Temperature on Infiltration in Cinnamon of Western Liaoning[J].Research of Soil and Water Conservation,2015,22(03):276-279.
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Effects of SAR/EC and Water Temperature on Infiltration in Cinnamon of Western Liaoning
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 03
Page number:
276-279
Column:
Public date:
2015-06-28
- Title:
- Effects of SAR/EC and Water Temperature on Infiltration in Cinnamon of Western Liaoning
- Keywords:
- soil infiltration; sodium adsorption ratio; electric conductivity; water temperature; cinnamon
- CLC:
- S157;S153
- DOI:
- -
- Abstract:
- Soil infiltration rate is one of the important factors affecting runoff yield and soil erosion. Indoor variable head penetration test was conducted to study the influence of different water temperatures, sodium adsorption ratios(SAR) and electric conductivities(EC) in cinnamon of Western Liaoning Province. Under the same SAR and EC, soil infiltration coefficient increased with the increase of irrigation water temperature, soil infiltration coefficient increased 1.3 times while the temperature ranged from 15℃ to 35℃. Soil infiltration coefficient dropped with increase of SAR and decrease of EC of the irrigation water. SAR increased from 0.7 (mmol/L)0.5 to 12 (mmol/L)0.5, EC decreased from 2.0 dS/m to 0.5 dS/m, the soil infiltration rate decreased from 0.000 698 cm/s to 0.000 338 cm/s, the infiltration coefficient decreased by 51.6% while water temperature was 35℃. Correlation analysis revealed that water temperature and SAR/EC had the significant influence on the infiltration coefficient. The quadratic function mathematic models describing the relationship between soil infiltration coefficient and water temperature and SAR/EC were established respectively through the regression analysis, and variables in the models had the good correlation.
- References:
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