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Solonchak
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Solonchak
Encyclopedia
农学
盐土
释
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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multiplicity of an eigenvalue
multiplicity of an ideal
multiplicity of a point
multiplicity of a pole
multiplicity of a representation
multiplicity of a ring
multiplicity of a root
multiplicity of a singular point
multiplicity of a solution
multiplicity of a tangent
multiplicity of a weight
multiplicity of a zero
multiplicity of intersection
multiplicity-one theorem
multiplicity theory
multiplier
multiplier algebra
multiplier group
multiplier ideal sheaf
multiplier method
multiplier of a canonical equation
multiplier of a cyclic difference set
multiplier of a difference set
multiplier of a group
multiplier of a Hamiltonian equation
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