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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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celestial chart
celestial clock
celestial coordinate
celestial coordinate system
celestial correlation function
celestial cryptography
celestial dog
celestial doppler navigation system
Celestial Ephemeris Origin
celestial ephemeris pole
celestial equator
celestial equator system of coordinate
celestial flail
celestial geodesy
celestial globe
celestial guidance
celestial horizon
celestial inertial guidance
celestial-inertial navigation system
Celestial Intermediate Origin
celestial intermediate origin
Celestial Intermediate Pole
celestial intermediate pole, CIP
Celestial Intermediate Reference System
celestial intermediate reference system
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