| Cite this article: | 王尚涛,赵楠,张扬,等.干旱绿洲农田无核白葡萄树蒸散发的分割研究[J].灌溉排水学报,0,():-. |
| Wang Shang-tao,Zhao Nan,Zhang Yang,et al.干旱绿洲农田无核白葡萄树蒸散发的分割研究[J].灌溉排水学报,0,():-. |
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| Characteristics of Evapotranspiration and Transpiration of Grapevines (Vitis vinifera L.) of Farmland Ecosystem in an Arid Oasis Area |
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Wang Shang-tao1, Zhao Nan2,3,4, Zhang Yang2,3,4, Zhang Kun5, Zhu Gao-feng2,3,4
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1.School of Water Resources and Electric Power,Qinghai University;2.Key Laboratory of Western China'3.'4.s Environmental Systems with the Ministry of Education,College of Earth and Environmental Sciences,Lanzhou University;5.Institute of Tibetan Plateau Research,Chinese Academy of Sciences
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| Abstract: |
| 【Objective】Exploring the characteristics of transpiration and the ratio of transpiration to evapotranspiration in a farmland ecosystem in arid oasis area to provide certain support for T/ET research.【Method】Characteristics of Evapotranspiration (ET, mm/d) and Transpiration (T, mm/d) of grapevines (Vitis vinifera L.) in an arid oasis area was developed by combining with sap-flow, microclimatic station and eddy-covariance methods during the growth stage.T/ET at the ecosystem scale was also analyzed. 【Result】The results suggested that the value of transpiration increased from 0.20 mm/d to 8.13 mm/d in the middle growth period, and then gradually decreased to a minimum value at the end of leaf fall, with the average of 3.32 mm/d during the growing season. And then, the evapotranspiration increased from 0.44 mm/d to 9.97 mm/d, and then gradually decreased to a minimum value at the end of the period, value of 4.91mm/d. The range of T/ET was about 63.5%. 【Conclusion】transpiration is the domain water flux during the growth stages of grapevines (Vitis vinifera L.) in an arid oasis area. |
| Key words: Arid oasis area; Vitisvinifera L.; Sap flow; Eddy covariance; T/ET |
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