四川农业大学学报 ›› 2004, Vol. 22 ›› Issue (03): 233-238.doi: 10.16036/j.issn.1000-2650.2004.03.009

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紫色土无机胶体与土壤肥力

雷加容1,2, 何毓蓉2, 余敖1   

  1. 1. 绵阳市农科所, 四川 绵阳 621002;
    2. 中国科学院 成都山地灾害与环境研究所, 四川 成都 610041
  • 收稿日期:2004-04-10 出版日期:2004-09-30 发布日期:2017-03-04
  • 基金资助:
    中国科学院重点项目(KZ952-S1-206)

Relationship between Inorganic Colloid and Fertility of Purple Soil

LEI Jia-rong1,2, HE Yu-rong2, YU Ao1   

  1. 1. Institute of Agricultural Science of Mianyang, Mianyang 621002, Sichuan, China;
    2. Institute of Mountain Hazards and Environment, Chinese Academy of Science, Chengdu 610041, China
  • Received:2004-04-10 Online:2004-09-30 Published:2017-03-04

摘要: 对云南、贵州和安徽等地的紫色土无机胶体(<0.002mm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<0.002mm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

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.

Key words: clay mineral compositions, soils fertility, purple soils

中图分类号: 

  • S155.2+5