Pedosphere 13(1): 81--86, 2003
ISSN 1002-0160/CN 32-1315/P
©2003 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Relationship between 2:1 mineral structure and the fixation and release of cations |
| FENG Ke, WANG Xiao-Li, WANG Xiao-Zhi and TANG Yan |
| Agricultural College, Yangzhou University, Yangzhou 225009 (China) |
| ABSTRACT |
| The effects of different structures of 2:1 layer minerals, layer charge location, and changes of structure and charge during the weathering process on the fixation and release of interlayer cations are reviewed. It could be concluded that the fixation capacity is determined by the total amount of interlayer charge originating from both octahedral and tetrahedral sheets. The relationship between interlayer cation fixation and octahedral structure of the secondary minerals may be different from that of the primary minerals. The oxidation and reduction of cations with variable valence can greatly influence the cation-fixation capacity. |
| Key Words: cation fixation, interlayer charge, mineral structure |
| Citation: Feng, K., Wang, X. L., Wang, X. Z. and Tang, Y. 2003. Relationship between 2:1 mineral structure and the fixation and release of cations. Pedosphere. 13(1): 81-86. |
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