| Field measurement and calculation of unsaturated soil water movement parameters of Fengshou irrigation district in Awati county of Xinjiang |
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| DOI：10.7606/j.issn.1000-7601.2011.01.08 |
| Key Words: Fengshou irrigation district soil water retention curve soil hydraulic conductivity soil water diffusivity specific water capacity |
| Author Name | Affiliation | | HU Shunjun | Key Laboratory of Oasis Ecology and Desert Environment, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China
Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China | | TIAN Changyan | Key Laboratory of Oasis Ecology and Desert Environment, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China
Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China | | SONG Yudong | Key Laboratory of Oasis Ecology and Desert Environment, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China |
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| Abstract: |
| Soil water movement parameters are necessary for the solution of the basic soil water movement equation. A set of data about soil water suction corresponding to soil water content were observed by tensiometer method，and the soil saturated hydraulic conductivity was determined by double loop infiltration experiment in the field of Fengshou irrigation district in Awati county of Xinjiang, respectively. A water retention equation based on a closed form equation proposed by Van Genuchten was fitted with Sigmaplot software. The calculation formula for unsaturated hydraulic conductivity was established by employing the equation put forwarded by Mualem. Finally, the calculation formula for soil water diffusivity and specific water capacity were also derived indirectly. |
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