| 石羊河流域井灌区土壤水分深层渗漏研究 |
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| 引用本文： | 江冠军,刘芳,唐泽军.石羊河流域井灌区土壤水分深层渗漏研究[J].灌溉排水学报,2009(6). |
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| 作者姓名： | 江冠军 刘芳 唐泽军 |
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| 作者单位： | 中国农业大学水利与土木工程学院;甘肃联合大学经济与管理学院; |
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| 基金项目： | 国家“十一五”科技支撑计划(2006BAD11B05) |
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| 摘 要： | 基于土壤水分亏缺、总有效水分和实际有效水分的概念,建立土壤水分水量平衡模型,通过计算作物根系层的深层渗漏量,来反映土壤水与地下水之间量的相互转化关系。研究结果表明,研究期间的总深层渗漏量为9 4.1 9 mm,占研究期间总灌水量和降雨量的2 0.1%,这部分水量通过根系层补给下层土壤,最终补给地下水。
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| 关 键 词： | 石羊河流域 土壤水分 水量平衡 深层渗漏 |
Deep Drainage for Irrigation District in Shiyang River Basin |
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| JIANG Guan-jun,LIU Fang,TANG Ze-jun.Deep Drainage for Irrigation District in Shiyang River Basin[J].Journal of Irrigation and Drainage,2009(6). |
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| Authors: | JIANG Guan-jun LIU Fang TANG Ze-jun |
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| Institution: | JIANG Guan-jun1,LIU Fang2,TANG Ze-jun1 (1.College of Water Conservancy and Civil Engineering,China Agricultural University,Beijing 100083,China,2.College of Economy and Management,Gansu Lianhe University,Lanzhou 730000,China) |
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| Abstract: | Based on conception of SMD(Siol Moisture Deficit),TAW(Total Available Water) and RAW(Readily Available Water),a water balance model is built,for the deep drainage calculation,to reveal the relationship between soil water and groundwater.In conclusion,the total deep drainage water over the periods of experiment is 94.19 mm,account for 20.1 percent of the precipitation and irrigation water.The deep drainage water will supply the soil layer beneath and finally supply the groundwater. |
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| Keywords: | Shiyang River Basin soil water water balance deep drainage |
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