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绿洲棉田非饱和土壤导水率的野外试验研究
Authors
宋郁东
田长彦
胡顺军
Publication date
20 October 2010
Publisher
Abstract
非饱和土壤导水率是研究土壤水盐运动的重要参数之一,其测定方法很多。根据Libardi等人提出的野外测定非饱和土壤导水率的θ法,通过在阿克苏水平衡试验站棉田的试验,求得了该站绿洲棉田的非饱和土壤导水率,建立了计算非饱和土壤导水率的经验公式,将θ法与毛细管模型确定的非饱和土壤导水率与土壤含水率的关系进行了比较,并分析了θ法的误差来源。研究结果表明:θ法简单实用,是一种野外测定非层状土壤非饱和导水率的行之有效方法
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Last time updated on 29/11/2016