| 红壤的物理性质及其生产意义 |
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| 引用本文： | 姚贤良,于德芬.红壤的物理性质及其生产意义[J].土壤学报,1982,19(3):224-236. |
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| 作者姓名： | 姚贤良 于德芬 |
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| 作者单位： | 中国科学院南京土壤研究所;中国科学院南京土壤研究所 |
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| 摘 要： | 热带和亚热带地区广泛分布着红壤性土壤。由于该地带水热条件十分优越,促进了土壤矿物组成的强烈风化和生物物质的迅速循环,从而构成了红壤性土壤所具有的独特的化学性质和物理行为。晚近的研究表明,红壤性土壤中大量存在的高岭类粘土矿物和三二氧化物不仅决定了土壤中一系列的化学环境,而且也影响着土壤中的物理过程和力学性质的变化13,18],而后者的控制和改善又往往是红壤开发利用成败的关键之一17]。
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THE PHYSICAL PROPERTIES OF RED EARTH AND ITS PRODUCTIVE SIGNIFICANCE |
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| Yao Xian-liang and Yu De-fen.THE PHYSICAL PROPERTIES OF RED EARTH AND ITS PRODUCTIVE SIGNIFICANCE[J].Acta Pedologica Sinica,1982,19(3):224-236. |
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| Authors: | Yao Xian-liang and Yu De-fen |
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| Institution: | Institute of Soil Science, Academia Sinica, Nanjing;Institute of Soil Science, Academia Sinica, Nanjing |
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| Abstract: | The physical properties of the major red earths widely distributed in the tropical and subtropical China were studied. The results showed that the clayey red earth containing about 60% clay particles formed under certain tropical bioclimatic condition not only had the particular chemical properties, but also possessed special physical behaviours. Their characteristics such as water retention and movement, soil rupture modulus, Broil adhesion and Atterberg's constants were quite different from the soils with clayey texture, but similar to the soils with sandy texture. One of the important reasons resulting in the physical behaviours mentioned above is attributed to the abundance of the water stable microaggregates in these soils.The unique physical properties of clayey red earths is of great significance to its rational exploitation, utilization and management. |
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