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碱土
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碱土
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碱土
表土可溶盐含量小于5克/千克、交换性钠占阳离子交换量30%以上、pH9以上的土壤。在中国土壤分类暂行草案(1978)及全国第二次土壤普查(1988)中,列为盐成土纲碱土土类;在中国土壤系统分类(2001)中,列为碱积盐成土[注];在美国土壤系统分类中,部分相当于各土纲中具有钠质特性的土类;在联合国世界土壤资源参比基础(2013)中,部分相当于碱土[注]。
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