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| DOI：10.13522/j.cnki.ggps.GP201608120002 |
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| Response of Water Dynamics in Sandy Soils to Different Drip Irrigations at Jujube Orchard in Southern Xinjiang |
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HU Jiashuai, WANG Zhenhua, ZHENG Xurong, CHEN Wenjuan, BIAN Qingyong
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College of Water Conservancy and Architecture Engineering, Shihezi University, Shihezi 832000, China
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| Abstract: |
| 【Objective】The purpose of this work is to experimentally investigate soil water changes in sandy soil to different drip irrigation in southern Xinjiang. 【Method】The experiment was conduced in a 7-A dwarf jujube orchard. We considered two irrigation methods: one was to irrigate each jujube with one drip emitter and the other was to irrigate the tree with multiple emitters, with each method having three irrigation amounts: 900, 1 050 and 1 200 mm. 【Result】 Irrigation amount under multi-emitter method affected soil moisture distribution, with the water content within the 20 cm horizontal distance above 50 cm depth lower than that within the 40 cm horizonal distance below 50 cm depth. Below 110 cm depth, soil water content under single-emitter irrigation was higher than that under multi-emitter irrigation. With time elapsing, however, the spatiotemporal soil water distribution under different irrigation method and amount changed and there was no simple relationship to describe them. 【Conclusion】Irrigation methods impact soil moisture distribution, but not the water consumption by the crop. |
| Key words: red jujube; drip irrigation method; irrigation amount; soil water content |
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