| 高速公路绿化带灌溉系统建设工艺与效益分析 |
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| 引用本文： | 吴文勇,郝仲勇,刘洪禄,郑文刚,齐志明,师彦武.高速公路绿化带灌溉系统建设工艺与效益分析[J].节水灌溉,2005(3):18-20. |
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| 作者姓名： | 吴文勇 郝仲勇 刘洪禄 郑文刚 齐志明 师彦武 |
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| 作者单位： | 北京市水利科学研究所,北京,100044;国家农业信息化工程技术研究中心,北京,100044 |
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| 基金项目： | 国家高技术研究发展计划(“863”计划)“北方半干旱都市绿地灌溉区节水综合技术体系集成与示范”项目(2002AA2Z428111)资助 |
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| 摘 要： | 高速公路绿化隔离带节水灌溉的建设与研究表明,干、支管采取焊接方式可靠性为100%。毛管浅埋方式与水平安装滴头是延长滴头耐久性的重要措施,人员行走与养护是滴头破坏的直接原因。典型高速公路绿化隔离带灌溉系统单位长度投资为15.4万元/km,是目前我国高速公路建设投资的0.17%～0.22%,其中输配水系统占灌溉系统投资的45%。对红叶小檗滴灌区与对照区(水车漫灌)相比,植株高度提高6%;金叶女贞滴灌区与对照区(水车漫灌)相比,植株高度提高10%。采取滴灌系统灌溉高速公路绿化隔离带,节水1690m3/(a·km),年综合效益总计为2.21万元/(a·km)。投资回收期为4.1年。
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| 关 键 词： | 高速公路 节水灌溉 工艺及效益 |
| 文章编号： | 1007-4929(2005)03-0018-03 |
| 修稿时间： | 2004年11月29 |
Key Techniques and Profit Evaluation of Water-saving Irrigation System in the Middle Isolated Grassland of Highway |
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| WU Wen-yong,HAO Zhong-yong,LIU Hong-lu,ZHENG Wen-gang,QI Zhi-ming,SHI Yan-wu.Key Techniques and Profit Evaluation of Water-saving Irrigation System in the Middle Isolated Grassland of Highway[J].Water Saving Irrigation,2005(3):18-20. |
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| Authors: | WU Wen-yong HAO Zhong-yong LIU Hong-lu ZHENG Wen-gang QI Zhi-ming SHI Yan-wu |
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| Institution: | WU Wen-yong~1,HAO Zhong-yong~1,LIU Hong-lu~1,ZHENG Wen-gang~2,QI Zhi-ming~1,SHI Yan-wu~1 |
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| Abstract: | The result of research on experimental segment of water saving irrigation system in the middle isolated grassland of highway showed that welding was the most reliable joining method for main pipe and branch pipe. Shallow buried depth of lateral and horizontal installation of emitter is the effective measure to prolong durability of emitter. Tread of man and maintenance of highway is the direct reason for demolish of emitter. The investment of isolated grassland in highway is 0.154 million per kilometer,about 0.17%-0.22% of the total investment of highway, water delivery pipe amounts for 45%. Plant height with drip irrigation is 6%-10% higher than the comparison. According to the demonstration area, 1690 m3 amount of water can be saved per kilometer annually,comprehensive profit is 2.21 thousand dollars per kilometer annually, and the payback period is 4.1 years. |
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| Keywords: | middle isolated grassland of highway water-saving Irrigation key techniques and profit |
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