Experimental Investigation of Relationship between Infiltration Rate and Soil Moisture under Rainfall Conditions
In this study, a mathematical expression describing the relationship between infiltration rate and soil moisture content was deduced based on the Horton equation in order to study the relationship between infiltration rate and soil moisture content during the rainfall infiltration process. Specific...
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MDPI AG
2022-04-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/14/9/1347 |
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| author | Ling Wei Moyuan Yang Zhu Li Jingli Shao Liqin Li Peng Chen Shu Li Ruibo Zhao |
| author_facet | Ling Wei Moyuan Yang Zhu Li Jingli Shao Liqin Li Peng Chen Shu Li Ruibo Zhao |
| author_sort | Ling Wei |
| collection | DOAJ |
| description | In this study, a mathematical expression describing the relationship between infiltration rate and soil moisture content was deduced based on the Horton equation in order to study the relationship between infiltration rate and soil moisture content during the rainfall infiltration process. Specific experimental data on infiltration processes were used to verify the validity of the equations and to analyze the main factors affecting the infiltration rate. The results indicate the following: (1) The experimental data demonstrated a high degree of accuracy. The volumetric error of soil moisture increase and cumulative infiltration was 3.5% and the coefficient of determination (R<sup>2</sup>) was 0.87 in the 42 tests. (2) The equation obtained in this paper can well describe the relationship between infiltration rate and soil moisture content; the R<sup>2</sup> of the fitted results was greater than 0.80 in more than 80% of the experiments. (3) The relationship between infiltration rate and soil moisture content is mainly influenced by initial soil moisture content; the higher the initial soil moisture content, the lower the initial infiltration rate, the faster the infiltration rate decreases with soil moisture content, and the lower the “relative stable infiltration rate” in the process of infiltration. |
| first_indexed | 2024-03-10T03:34:25Z |
| format | Article |
| id | doaj.art-a0adb30b23424c68a184355ae67f268d |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T03:34:25Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-a0adb30b23424c68a184355ae67f268d2023-11-23T09:34:26ZengMDPI AGWater2073-44412022-04-01149134710.3390/w14091347Experimental Investigation of Relationship between Infiltration Rate and Soil Moisture under Rainfall ConditionsLing Wei0Moyuan Yang1Zhu Li2Jingli Shao3Liqin Li4Peng Chen5Shu Li6Ruibo Zhao7School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, ChinaBeijing Water Science and Technology Institute, Beijing 100048, ChinaBeijing Water Science and Technology Institute, Beijing 100048, ChinaSchool of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, ChinaBeijing Water Science and Technology Institute, Beijing 100048, ChinaBeijing Water Resources Dispatching and Management Affairs Center, Beijing 100097, ChinaBeijing Water Resources Dispatching and Management Affairs Center, Beijing 100097, ChinaBeijing Water Science and Technology Institute, Beijing 100048, ChinaIn this study, a mathematical expression describing the relationship between infiltration rate and soil moisture content was deduced based on the Horton equation in order to study the relationship between infiltration rate and soil moisture content during the rainfall infiltration process. Specific experimental data on infiltration processes were used to verify the validity of the equations and to analyze the main factors affecting the infiltration rate. The results indicate the following: (1) The experimental data demonstrated a high degree of accuracy. The volumetric error of soil moisture increase and cumulative infiltration was 3.5% and the coefficient of determination (R<sup>2</sup>) was 0.87 in the 42 tests. (2) The equation obtained in this paper can well describe the relationship between infiltration rate and soil moisture content; the R<sup>2</sup> of the fitted results was greater than 0.80 in more than 80% of the experiments. (3) The relationship between infiltration rate and soil moisture content is mainly influenced by initial soil moisture content; the higher the initial soil moisture content, the lower the initial infiltration rate, the faster the infiltration rate decreases with soil moisture content, and the lower the “relative stable infiltration rate” in the process of infiltration.https://www.mdpi.com/2073-4441/14/9/1347soil infiltrationsoil moisture contentartificial rainfall experimentHorton equation |
| spellingShingle | Ling Wei Moyuan Yang Zhu Li Jingli Shao Liqin Li Peng Chen Shu Li Ruibo Zhao Experimental Investigation of Relationship between Infiltration Rate and Soil Moisture under Rainfall Conditions Water soil infiltration soil moisture content artificial rainfall experiment Horton equation |
| title | Experimental Investigation of Relationship between Infiltration Rate and Soil Moisture under Rainfall Conditions |
| title_full | Experimental Investigation of Relationship between Infiltration Rate and Soil Moisture under Rainfall Conditions |
| title_fullStr | Experimental Investigation of Relationship between Infiltration Rate and Soil Moisture under Rainfall Conditions |
| title_full_unstemmed | Experimental Investigation of Relationship between Infiltration Rate and Soil Moisture under Rainfall Conditions |
| title_short | Experimental Investigation of Relationship between Infiltration Rate and Soil Moisture under Rainfall Conditions |
| title_sort | experimental investigation of relationship between infiltration rate and soil moisture under rainfall conditions |
| topic | soil infiltration soil moisture content artificial rainfall experiment Horton equation |
| url | https://www.mdpi.com/2073-4441/14/9/1347 |
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