【作者】 霍再林； 冯绍元； 郑艳艳； 王雅慧；

【Author】 Huo Zailin,Feng Shaoyuan,Zheng Yanyan,Wang Yahui (China Agricultural University,Centre for agricultural water research in China,100083,Beijing)

【机构】 中国农业大学中国农业水问题研究中心；

【摘要】 本文通过控制地下水位的蒸渗仪试验研究了不同灌溉水量及地下水位条件下土壤水与地下水转化规律,试验中设计3种灌溉制度(灌溉水量)及5种地下水位。研究结果表明,充分灌溉条件下,当地下水埋深小于2.5m时,灌溉水会产生明显深层渗漏补给地下水;而非充分灌溉条件下灌溉水补给地下水并不明显。非充分灌溉特别是重度缺水的非充分灌溉条件下,地下水会转化为土壤水补给作物耗水。当地下水埋深1.5～2.5m时,冬小麦生育期有104～36mm地下水转化为土壤水。研究结果可为研究区冬小麦灌溉制度的制定提供理论依据。更多还原

【Abstract】 The transform rule of soil water and groundwater under different irrigation water and water table were investigated by lysmeters with controlled groundwater.There are altogether three irrigation amounts and five groundwater levels.The results showed that irrigation water of full irrigation treatments can infiltrate to groundwater when depth of groundwater is less than 2.5m.However,it hadn t been observed that irrigation water recharge groundwater under deficit irrigation treatments.Groundwaters can capillary flow to soil water in deficit irrigation treatments,especially severe deficit irrigation treatments.In detail,there are 106 -36 mm groundwater can transform into soil water when depth of groundwater change from 1.5 m to 2.5m. The result can supply theoretic base for irrigation schedule of winter wheat in the study area.更多还原