| 冬小麦生长条件下土壤水与地下水转化试验研究 |
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| 引用本文： | 冯绍元,郑燕燕,霍再林,王雅慧. 冬小麦生长条件下土壤水与地下水转化试验研究[J]. 灌溉排水学报, 2010, 29(3) |
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| 作者姓名： | 冯绍元 郑燕燕 霍再林 王雅慧 |
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| 作者单位： | 中国农业大学中国农业水问题研究中心,北京,100083;中国农业大学中国农业水问题研究中心,北京,100083;中国农业大学中国农业水问题研究中心,北京,100083;中国农业大学中国农业水问题研究中心,北京,100083 |
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| 基金项目： | 国家自然科学基金,水利部公益基金,北京市重点学科水文学及水资源建设项目 |
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| 摘 要： | 基于不同地下水埋深土壤水与地下水转化田间试验,探讨冬小麦生长条件下不同地下水埋深对土壤水与地下水转化的影响机理。试验结果表明,地下水埋深为1.5 m,在冬小麦需水高峰期,地下水为冬小麦生长提供的水资源量占耗水量的30%以上;随着地下水埋深增大,地下水对冬小麦需水的动态调节作用减弱;当地下水埋深为3.5 m,地下水已基本失去对冬小麦需水的动态调节能力。
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| 关 键 词： | 冬小麦 土壤含水率 地下水埋深 潜水补耗差 |
Transformation between Soil Water and Groundwater under the Condition of Winter Wheat Planting |
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| FENG Shao-yuan,ZHENG Yan-yan,HUO Zai-lin,WANG Ya-hui. Transformation between Soil Water and Groundwater under the Condition of Winter Wheat Planting[J]. Journal of Irrigation and Drainage, 2010, 29(3) |
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| Authors: | FENG Shao-yuan ZHENG Yan-yan HUO Zai-lin WANG Ya-hui |
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| Abstract: | A field experiment of the transformation between soil water and groundwater with different depth of groundwater has been conducted.It explores the influence mechanism of different groundwater level on the transformation between soil and groundwater under the condition of crop growth.The results show that when the water depth is 1.5 m,on the peak time of crop water demand,the underground water accounts for more than 30% of the crop water consumption for crop growth.With the increase in groundwater depth,the dynamic regulation of the groundwater on crop water requirement is weakened.When the groundwater depth is 3.5 m,the groundwater has basically lost the dynamic adjustment ability to crops water requirement. |
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| Keywords: | winter wheat soil moisture groundwater depth difference derived from recharge minus evaporation |
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