| Cite this article: | 郭瑞,张馨,郑文刚,等.宏观毛管长度与土壤导水性状模型的关系[J].灌溉排水学报,,():-. |
| guorui,zhangxin,zhengwengang,et al.宏观毛管长度与土壤导水性状模型的关系[J].灌溉排水学报,,():-. |
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| DOI： |
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| Relationship Between Macroscopic Capillary Length and Soil Hydraulic Property Models |
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guorui, zhangxin, zhengwengang, xuexuzhang
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Beijing Research Center of Intelligent Equipment for Agriculture
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| Abstract: |
| The background of the concept "macroscopic capillary length" was introduced in the paper. The influence of two hydraulic properties models，the Brooks-Corey model and the van Genuchten Model, on the relationship between matric suctions and macroscopic capillary length values were calculated. The calculation results showed that macroscopic capillary length was not a constant for a soil when the Brooks-Corey model or the van Genuchten model was adopted. It was recommended in the paper that the application of the concept of "macroscopic capillary length" should be coupled with the exponential hydraulic conductivity function defined by Gardner. |
| Key words: Macroscopic capillary length; hydraulic properties; van Genuchten Model; Brooks-Corey Model; Gardner Model |
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