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Numerical Simulation of Soil Water Movement and Deep Seepage of Jujube Orchard in Drought Area
Author(s): 
Pages: 24-26
Year: Issue:  9
Journal: WATER SAVING IRRIGATION

Keyword:  枣树HYDRUS-1D土壤水深层渗漏;
Abstract: 根据TRIME与Hydra土壤水分监测仪监测枣园土壤含水率、TRAC冠层仪测定叶面积指数、Vantagepro2气象站监测气象数据等资料,开展了枣园土壤水渗漏试验.借助HYDRUS-1D模型对枣园传统地面灌条件下的土壤水渗漏规律进行模拟,经检验,模型模拟土壤层20,40,60,80 cm时,土壤含水率模拟值与实测值相关系数分别为0.94,0.94,0.92,0.71.利用模型分析了研究区地面灌条件下的土壤水渗漏特征和田间灌溉水量的转化关系,改进灌溉模式可大幅减少灌溉水量,提高水分的利用效率.
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