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Solonchak
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Solonchak
Encyclopedia
农学
盐土
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Solonchak
盐土
表层(0~30厘米)中含盐量超过6~20克/千克已形成明显积盐层的土壤。氯化物盐土含盐量下限为6克/千克,氯化物-硫酸盐和硫酸盐-氯化物盐土为10克/千克,硫酸盐盐土的积盐下限为20克/千克。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、盐土土类;在中国土壤系统分类(2001)中,相当于正常盐成土[注];在美国土壤系统分类中,部分相当于积盐干旱土[注]、含盐潮湿始成土[注];在世界土壤资源参比基础(2013)中,部分相当于盐土[注]。
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