| 易引起地下水浅埋农田涝渍的降水过程分析 |
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| 引用本文： | 朱建强,刘会宁,耿显波.易引起地下水浅埋农田涝渍的降水过程分析[J].灌溉排水学报,2008,27(6):10-13. |
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| 作者姓名： | 朱建强 刘会宁 耿显波 |
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| 作者单位： | [1]湖北省涝渍灾害与湿地农业重点实验室,湖北荆州434025 [2]长江大学园艺园林学院,湖北荆州434025 [3]湖北省荆州农业气象试验站,湖北荆州434025 |
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| 基金项目： | 湖北省教育厅科研项目
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长江大学校科研和校改项目
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| 摘 要： | 较多的降水往往会导致地下水浅埋区农田发生涝渍危害,结合湖北四湖流域实际,分析了可引起农田涝渍危害的降水过程特点,提出了致渍型、致涝型和涝渍相随型降水的概念。分析表明,50 mm以上的降水过程多出现在5月上旬和6月下旬,平均2.6~2.9年出现1次,降水持续时间主要在7 d以内;致渍型降水3.8次/年,3~9月份均有可能发生,其中5、6月发生频率最高(80%左右);致涝型降水主要出现在6~8月份,出现的频率分别为32.1%、37.7%和24.5%;致渍型降水出现的频次远大于致涝型降水,二者之比为2.63∶1;导致农田涝渍相随现象的降水有明显的季节性和一定重现期,春季约3年一遇,春夏过渡期约4.4年出现一次,夏季约3.5年一遇。
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| 关 键 词： | 地下水浅埋区 降水过程 农田涝渍 |
Analysis of Rainfall Process Vulnerable to Cause Surface Waterlogging and Subsurface Waterlogging in Shallow Groundwater Field |
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| ZHU Jian-qiang,LIU Hui-ning,GENG Xian-Bo.Analysis of Rainfall Process Vulnerable to Cause Surface Waterlogging and Subsurface Waterlogging in Shallow Groundwater Field[J].Journal of Irrigation and Drainage,2008,27(6):10-13. |
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| Authors: | ZHU Jian-qiang LIU Hui-ning GENG Xian-Bo |
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| Institution: | ZHU Jian-qiang1,LIU Hui-ning2,GENG Xian-Bo3(1.Hubei Provincial Key Laboratory on Wtaerlogging Disaster , Wetl, Agriculture,Jingzhou 434025,China,2.College of Horticulture , Gardening,Yangtze University,3.Hubei Provincial Jingzhou Experimental Station on Agriculture , meteorology,China) |
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| Abstract: | Surface and subsurface waterlogging caused by more rainfall is usually harmful to shallow groundwater filed.According to the practices of the Four-lake watershed in Hubei province the character of rainfall which may lead to waterlogging disaster in field was analyzed,a few of new concepts about rainfall were put forward,they are separately rainfall of leading to subsurface waterlogging,of emerging surface waterlogging and of causing subsurface waterlogging following after surface waterlogging.Analysis showe... |
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| Keywords: | shallow groundwater region rainfall process surface and subsurface waterlogging |
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