| 李佩成.黄土含水层给水度合理取值的研究[J].水利学报,1999,30(11):0038-0042 |
| 黄土含水层给水度合理取值的研究 |
| Study on rational determination of specific yield in aquifer of loess areaLi |
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| DOI： |
| 中文关键词: 给水度 含水层 释水机理 |
| 英文关键词: specific yield aquifer water release mechanism |
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| 中文摘要: |
| 给水度μ值乃是地下水计算和水资源评价中一个十分重要的常用参数，它的正确取值一直在被研究，本文介绍了作者通过在黄土地区开展实地测试获得的有关最新成果，介绍了利用中子水分仪等设备，揭示的含水层释水过程和给水度变化过程，剖析了该过程的内在机理，发现了过程给水度μt值与时间呈双曲线变化的规律，进而推出了反映该规律的相应公式。在测得含水率变化的基础上，利用该式便可解决给水度的合理取值问题。 |
| 英文摘要: |
| In this paper,the field experiment result using neutron moisture meter in loess area is presented.The process of water release and variation of specific yield in aquifer are described.The inherent mechanism in the process is analyzed.The relationship between time-dependent specific yield and time history is found to be a hyperbola and accordingly an empirical formula is derived.Using this formula,the rational specific yield can be determined based on the variation of measured soil moisture content. |
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