| 地下滴灌湿润比计算方法探讨 |
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| 引用本文： | 韩启彪,孙浩,仵峰,段福义,赵东,邓忠. 地下滴灌湿润比计算方法探讨[J]. 中国农村水利水电, 2011, 0(4) |
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| 作者姓名： | 韩启彪 孙浩 仵峰 段福义 赵东 邓忠 |
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| 作者单位： | 1. 中国农业科学院农田灌溉研究所,河南新乡,453003
2. 河北工程大学水电学院,河北邯郸,056021 |
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| 基金项目： | 国家高技术研究发展计划(“863”计划)重点项目(2006AA100213) |
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| 摘 要： | 最近几年地下滴灌在国内推广迅速,但其工程设计仍按地表滴灌模式进行,一定程度上阻碍了其应用.湿润比是微灌系统设计的重要参数之一,在前人研究的基础上,对地下滴灌湿润比计算方法进行了理论推导,给出了理论计算公式,并进行了相关误差分析.认为:地下滴灌湿润比计算公式与地表滴灌类似,但与计划湿润深度、灌水器埋深等参数相关;继续使用地表滴灌湿润比计算公式会产生误差,误差大小与计划湿润深度和湿润体形状密切相关;只有在一定取值范围内才可继续沿用20～30 cm深处土层的湿润面积来计算湿润比.
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| 关 键 词： | 地下滴灌 湿润比 计划湿润深度 灌水器 计算方法 |
Research on the Calculation Method of the Wetted Percentage of Subsurface Drip Irrigation |
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| HAN Qi-biao , SUN Hao , WU Feng , DUAN Fu-yi , ZHAO Dong-bin , DENG Zhong. Research on the Calculation Method of the Wetted Percentage of Subsurface Drip Irrigation[J]. China Rural Water and Hydropower, 2011, 0(4) |
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| Authors: | HAN Qi-biao SUN Hao WU Feng DUAN Fu-yi ZHAO Dong-bin DENG Zhong |
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| Affiliation: | HAN Qi-biao1,SUN Hao1,WU Feng1,DUAN Fu-yi1,ZHAO Dong-bin2,DENG Zhong1(1.Farmland Irrigation Research Institute,Chinese Academy of Agricultural Sciences,Xinxiang 453003,Henan Province,China,2.Water Electricity College,Hebei University of Engineering,Handan 056021,Hebei Province,China) |
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| Abstract: | Subsurface drip irrigation has been developed very fast in China in recent years,but its design is still based on the drip irrigation model,which has to some extent.hindered application Wetting proportion is one of the important parameters of the micro-irrigation system design.Based on previous studies,a theoretical research on wetted percentage of subsurface drip irrigation design is carried out in this paper.The computation formula has been got and its relevant error analysis has also been made.The result... |
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| Keywords: | subsurface drip irrigation wetting proportion scheming wetted soil layer depth emitter calculation method |
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