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Study on Forecast Model for Agricultural Irrigation Water Quantity in Malashi River Basin
Author(s): 
Pages: 53-54
Year: Issue:  5
Journal: WATER SAVING IRRIGATION

Keyword:  需水预测模型膜下滴灌玛纳斯河流域气温腾发量作物系数;
Abstract: 建立了了玛纳斯河流域农业灌溉需水预测模型,并以当地典型作物膜下滴灌棉花为例,对模型进行了验证.结果表明,建立的玛纳斯河流域农业灌溉需水预测模型,能够在较长时期内(20 d左右)比较准确地预报膜下滴灌棉花的灌水日期和灌水量.该模型的特点是,首先采用气温的历史趋势值和实时修正值预测气温,然后根据气温预测参考作物腾发量,同时结合采用逐日变化的作物系数,实现灌溉预报.该模型所需数据少,方法简单,预测方便,具有较高的实用价值.
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