| 禹城沙地节水试验滴灌设计 |
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| 引用本文： | 冯起,高前兆.禹城沙地节水试验滴灌设计[J].干旱区资源与环境,1996,10(2):18-25. |
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| 作者姓名： | 冯起 高前兆 |
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| 作者单位： | 中国科学院兰州沙漠研究所 |
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| 摘 要： | 本文结合禹城沙地的具体特征进行以水为目的的滴灌设计。本设计参数经水力计算确定：给水强度不小于３ｍｍ／ｄ，滴头流量不少于３１／ｈ，轮灌周期不少于１天，滴水均匀度不少于８０％。实验区按照实验日的的需要分成滴灌区和漫灌区。管道系统布置成于管、支管、毛管、微管四个等级。并计算于管使用φ４０ｍｍ胶管，支管使用φ３２ｍｍ．φ２５ｍｍ，φ２０ｍｍ三种管径组合，毛管全部采用φ１０ｍｍ的胶管。根据使用年限设计全部管道均埋地下。最后提出暗管除污的几种措施：水源采用水井的净水，首部枢纽使用过滤器，整个管道系统形成０．０５ｍ的地势差，便于微管除沙尘，配有吸气球。以上设计结果使整个滴灌地达到湿润度３０％的效果。
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| 关 键 词： | 沙地，节水试验，滴灌 |
DRIP IRRIGATION DESIGN IN SUBHUMID SANDY LAND OF YUCHENG |
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| Feng Qi, Cao Qianzhao.DRIP IRRIGATION DESIGN IN SUBHUMID SANDY LAND OF YUCHENG[J].Journal of Arid Land Resources and Environment,1996,10(2):18-25. |
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| Authors: | Feng Qi Cao Qianzhao |
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| Abstract: | The article designs drip irrigation for saving water in light of the specific characters of sandy land in Yuchen. By hydraulic calculation,we determine hydraulic parameter as follow:strength of drip irrigation is more than 3mm/h,drip irrigation time is more than one day, drip irrigation discharge is more than 3L/h, drip irrigation evenness is more than80%. The experiment area is divided into drip irrigation area and flow irrigation area. Irrigation system is divided into four grade: main irrigation tube,branch tube, capillary tube,micro-tube, their diameters are 40cm; 30mm.25mm.20mm;10mm. All of the tubes arecovered. |
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| Keywords: | sandy land saving water experiment drip irrigation design |
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