| 土壤物理特性对地下滴灌灌水器流量影响分析 |
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| 引用本文： | 王晓愚,白丹,李占斌,李刚.土壤物理特性对地下滴灌灌水器流量影响分析[J].干旱区资源与环境,2009(3). |
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| 作者姓名： | 王晓愚 白丹 李占斌 李刚 |
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| 作者单位： | 西安理工大学西北水资源与环境生态教育部重点实验室; |
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| 基金项目： | 国家自然科学基金项目(50549018)资助 |
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| 摘 要： | 地下滴灌灌水器流量由于受到土壤因素的制约而比地表滴灌流量有所减小,研究土壤物理特性对地下滴灌灌水器流量的影响程度对地下滴灌水力计算与工程设计具有重要的理论和实用价值。文中分别选取灌水器工作压力、土壤容重和土壤初始含水率为因素,采取混合水平均匀设计安排试验方案,将归一化处理后的各因素实测数据进行回归分析,估算各试验因素对地下滴灌灌水器流量的影响程度。结果表明:地下滴灌中工作压力是决定灌水器流量的主要因素,土壤容重和土壤初始含水率对地下滴灌灌水器流量的影响较弱,但在地下滴灌水力计算与工程设计中也不可忽略。
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| 关 键 词： | 地下滴灌 灌水器 流量 土壤物理特性 影响程度 |
Influence of Soil Physical Properties on Emitter Discharge of Subsurface Drip Irrigation |
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| WANG Xiao-yu,BAI Dan,LI Zhan-bin,LI Gang.Influence of Soil Physical Properties on Emitter Discharge of Subsurface Drip Irrigation[J].Journal of Arid Land Resources and Environment,2009(3). |
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| Authors: | WANG Xiao-yu BAI Dan LI Zhan-bin LI Gang |
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| Institution: | Key Lab of Northwest Water Resources and Environment Ecology;Ministry of Education;Xi'an University of Technology;Xi'an 710048;China |
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| Abstract: | The emitter discharge of subsurface drip irrigation(SDI) is smaller than that of drip irrigation(DI) at the same work pressure.Analyzing the influence degree of soil physical properties on SDI emitter discharge has important theoretical and practical application values to SDI hydraulic calculation and design.For this reason,the experiment scheme was arranged based on uniform design with mix levels of three factors.The three factors are respectively work pressure of emitter,soil bulk density and initial soil... |
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| Keywords: | subsurface drip irrigation emitter discharge soil physical properties influence degree |
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