| Optimization research of lateral pipe layout mode for drip irrigation of adult grape in extreme arid region |
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| DOI：10.7606/j.issn.1000-7601.2016.06.16 |
| Key Words: distribution of grape root system characteristics of water infiltration drip irrigation lateral pipe layout mode model simulation |
| Author Name | Affiliation | | LI Meng | College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University Urumqi 830052, China
Xinjiang Institute of Water Resources and Hydroelectric Power, Urumqi 830049, China | | ZHANG Jiang-hui | Xinjiang Institute of Water Resources and Hydroelectric Power, Urumqi 830049, China | | Hudan·tumaerba | College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University Urumqi 830052, China | | BAI Yun-gang | Xinjiang Institute of Water Resources and Hydroelectric Power, Urumqi 830049, China | | LIU Hong-bo | Xinjiang Institute of Water Resources and Hydroelectric Power, Urumqi 830049, China | | DING Ping | Xinjiang Institute of Water Resources and Hydroelectric Power, Urumqi 830049, China |
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| Abstract: |
| Through established mathematical model, using the Hydrus-2D software simulated the characteristics of water infiltration under double pipes asymmetric layout and three pipes layout, analyzed the coupling degree of grape root distribution. The simulated results were verified and compared with the field test. The results showed that: the wetted profiles were comparatively close under the conditions of double pipes asymmetric and three pipes arrangement. The water distribution was relatively uniform, the vertical wetted depth was about 60 cm and horizontal wetted width was about 100 cm for the double pipes asymmetric layout mode. The vertical wetted depth was 60 cm and horizontal wetted width was approximately 120 cm for the three pipes arrangement mode. Under double pipes asymmetric arrangement, the yield and grape growth aspects can be reached the effect of three pipes layout mode. So determined that the three pipes layout mode can be replaced by the double pipes with asymmetric arrangement. At the same time, it explained when selected and optimally analyzed the lateral pipe layout in field, the mathematical model analysis method can be utilized. The workload of outside experiments in field can be greatly reduced,while the scientific research results can be obtained at the simplified research process. |
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