| 以涝渍连续抑制天数为指标的排水标准试验研究 |
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| 引用本文： | 汤广民.以涝渍连续抑制天数为指标的排水标准试验研究[J].水利学报,1999(4):25-29. |
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| 作者姓名： | 汤广民 |
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| 作者单位： | 安徽省水利部淮委水利科学研究院,蚌埠,233000 |
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| 摘 要： | 通过对涝渍连续动态控制排水指标的模拟试验研究，提出了涝渍连续抑制天数指标ＣＳＤＩ和涝害权重系数ＣＷ的概念及其求解方法；并建立了作物相对产量Ｒｙ与ＣＳＤＩ的关系模型；分析了涝渍分割研究的不足之处和涝渍连续研究的必要性．研究结果表明，棉花相对产量Ｒｙ与地下水连续动态指标ＳＥＷ３０和ＣＳＤＩ均具有良好的线性关系；涝害权重系数ＣＷ是一个随涝渍状态而变的状态变量，说明在涝渍连续情况下，分别用除涝和降渍单项指标确定排水标准与实际情况有一定的出入，而涝渍连续抑制天数指标能够将除涝与降渍作为一个整体，用它来确定排水标准比较合理．
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| 关 键 词： | 涝渍连续抑制天数指标，涝害权重系数，排水标准 |
| 修稿时间： | 1998年8月3日 |
Experimental study on drainage standard |
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| Tang Guangmin.Experimental study on drainage standard[J].Journal of Hydraulic Engineering,1999(4):25-29. |
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| Authors: | Tang Guangmin |
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| Affiliation: | Anhui Water Resources Research Institute |
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| Abstract: | Based on the experiment for drainage index regarding the continuous days of water logging and excessive soil water,the solution for continuous stress day index(CSDI) and weight coefficient of water logging(CW) are proposed and the relationship between relative crop yield and CSDI is established.The study results show that the utilization of CSDI is reasonable in determination of drainage standard. |
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| Keywords: | continuous stress day index of water logging and excessive soil water weight coefficient of waterlogging drainage standard experimental study |
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