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Estimating unsaturated hydraulic conductivity and retention curve from tension disc infiltrometer data in sandy soil
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zohrabi, Narges Kashkuli, H. Hafshejani, Atefeh Bibak |
| Copyright Year | 2012 |
| Abstract | One of the essential requirements in agriculture, environment, engineering and irrigation and drainage system design is to use a functional and effective method to estimate the unsaturated soil hydraulic properties. Tension disc infiltrometers are becoming increasingly popular devices for in situ measurement of the unsaturated hydraulic properties of soil. This study mainly aims to estimate unsaturated hydraulic conductivity and soil moisture characteristic curve from tension disc infiltrometer data in sandy soil. For this purpose, the unsaturated hydraulic conductivity was measured through tension disc infiltrometer in sandy soil on 6 suctions of zero, 3, 6, 9, 12 and 15 cm in three replications. In order to analyze the results, the method proposed by Logsdon and Jaynes (1993), which is a non-linear regression method, was used. In addition, soil moisture curve was estimated by results obtained from the measurement using RETC Software (1991). Results indicated that moisture curve can be estimated indirectly with a good approximation through measuring unsaturated hydraulic conductivity by tension disc infiltrometer using RETC Software. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.aensiweb.com/old/aeb/2012/881-885.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
