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畦田实灌观测资料应用实例

The Application of Observation Data to Low-lying Land Irrigation
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摘要 根据实测灌水资料,运用迭代法推求了土壤入渗参数。实例应用表明,利用迭代法计算的土壤平均入渗量为10.54 cm,与实际的灌水深度(10.50 cm)十分接近;而利用筒测法计算的土壤平均入渗量为12.73 cm,远比实际灌水深度要大,误差高达21.24%。因此,利用迭代法得出的土壤入渗参数比较可信。 According to the irrigation data observed on the spot, soil infiltration parameters are used to estimate soil infiltration parameters in this paper. The example shows that the infiltration available is 10. 54 cm by the iterative method. The results are close to actual irrigation quota (10. 5 cm) while the infiltration calculated is 12.73 cm. Therefore, the soil infiltration parameters obtained by the iterative method are credible.
出处 《中国农村水利水电》 北大核心 2008年第12期18-20,共3页 China Rural Water and Hydropower
基金 国家"十五"科技攻关计划-西部开发专项(2001BA901A42) 国家"863"计划项目(2002AA2Z4191)
关键词 灌水资料 迭代法 土壤入渗参数 irrigation data iterative method soil infiltration parameters
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