| 湖北省土壤各级颗粒的磁化率 |
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| 引用本文： | 余红家.湖北省土壤各级颗粒的磁化率[J].湖北农学院学报,1990(1). |
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| 作者姓名： | 余红家 |
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| 摘 要： | 本试验对湖北省六种土壤五个粒级(>1,1-0.5,0.5-0.25,0.25-0.15.0.15-0.1mm)的磁化率进行了测定。结果表明:红壤、棕红壤、潮土和黄棕壤表土层磁化率大于母质层磁化率,而紫色土和黄褐土表土层磁化率小于下部土层的磁化率。棕红壤表土层磁化率小于淀积层磁化率。红壤、棕红壤、黄棕壤和黄褐土母质层磁化率随颗粒变细而明显增加,但这一现象在潮土、紫色土的母质层确不明显。0.25-0.15mm粒级是黄棕壤、红壤、棕红壤、潮土、紫色土磁化率随颗料大小变化的一个转折点。
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| 关 键 词： | 磁化率 颗粒大小 土壤 母质 |
THE MAGNETIC SUSCEPTIBILITY OF DIFFERENT SIZE FRACTIONS OF THE SOILS IN HUBEI PROVINCE |
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| She Hong jia.THE MAGNETIC SUSCEPTIBILITY OF DIFFERENT SIZE FRACTIONS OF THE SOILS IN HUBEI PROVINCE[J].Journal of Hubei Agricultural College,1990(1). |
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| Authors: | She Hong jia |
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| Institution: | She Hong jia |
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| Abstract: | The magnetic susceptibility of different size fractions of the soils in Hubei Province was investigated. The results showed that the na9netic susceptibility of the topsoil of purple soil and yellow-cinnamon soil was Less than that of their parent materiat, which was caused by their lower fertility and weak pedogenesis. The megnetic susceptibility of the topsoil of red earth, brown-red earth, alluvial soil and yellow-brown earth was greater than that of their parent material. The magnetic susceptibility of the topsoil of brown-red earth was less than that of its accumu-lation horizon. The magnetic susceptibility of the parent material of redearth, yellow-brown earth, brown-red earth and yellow-cinnamon soil increased with their partical size decreasing 0.25-0.15mm partical size fraction wasa transforming point of the magnetic susceptibility of redearth, allurial soil and purple soil with their partical size changing |
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| Keywords: | magnetic susceptibility partical size soil parent material |
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