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| 紫色土无机胶体与土壤肥力 | |
| 引用本文： | 雷加容,何毓蓉,余敖.紫色土无机胶体与土壤肥力[J].四川农业大学学报,2004,22(3):233-238. |
| 作者姓名： | 雷加容 何毓蓉 余敖 |
| 作者单位： | 1. 绵阳市农科所,四川,绵阳,621002;中国科学院,成都山地灾害与环境研究所,四川,成都,610041 2. 中国科学院,成都山地灾害与环境研究所,四川,成都,610041 3. 绵阳市农科所,四川,绵阳,621002 |
| 基金项目： | 中国科学院重点项目 (KZ95 2 -S1- 2 0 6 )。 |
| 摘 要： | 对云南、贵州和安徽等地的紫色土无机胶体 (<0 0 0 2mm粘粒 )的含量状况和矿物学组成特征作了初步探讨 ,它们的共同特点是 :紫色土 <0 0 0 2mm胶粒含量均小于贵州的对照土壤———黄壤的胶体含量 ;紫色土含较多 2∶1型黏土矿物和间层型矿物质、含较少的 1∶1型黏土矿物和胶粒中含较多石英。对照土壤———黄壤则主要含 1∶1型黏土矿物和石英。并且分析了无机胶体与土壤肥力的关系。 |
| 关 键 词： | 黏土矿物组成 土壤肥力 紫色土 |
| 文章编号： | 1000-2650(2004)03-0233-06 |
| 修稿时间： | 2004年4月10日 |
Relationship between Inorganic Colloid and Fertility of Purple Soil |
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| LEI Jia-rong,HE Yu-rong,YU Ao.Relationship between Inorganic Colloid and Fertility of Purple Soil[J].Journal of Sichuan Agricultural University,2004,22(3):233-238. | |
| Authors: | LEI Jia-rong HE Yu-rong YU Ao |
| Institution: | LEI Jia-rong~1,2,HE Yu-rong~2,YU Ao~1 |
| Abstract: | This paper deals with the content of colloidal particle and the clay mineral compositions of the purple soils from Yunnan, Guizhou and Anhui provinces. The common characteristics are as follows: the content of colloidal particle (<0.002?mm) of the purple soils is lower than that of CK (the yellow soil from Guizhou province); the purple soils contain more of 2∶1 clay mineral and less of 1∶1 clay mineral; the colloidal particle contains more Quartz. While the yellow soils mainly contain 1∶1 clay mineral and Quartz. Furthermore, the relationship between inorganic colloid and soils fertility is analyzed. |
| Keywords: | clay mineral compositions soils fertility purple soils |
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