| 摘要: |
| 对棕壤、黄棕壤、黄褐土和塿土344个样品阳离子交换量(CEC)与有机质、粘粒用方程y(CEC)=b0+b1x1(粘粒％)+b2x2(有机质％)+b3x1x2进行回归分析表明,在粘粒与有机质数量比为3～16(平均为8左右接近有机质与粘粒CEC之比)时,有机粘粒复合显著影响土壤CEC,且复合消耗有机质与粘粒总交换点的数量分别为41.8％,26.7％,31.9％和19.8％。 |
| 关键词: 阳离子交换量,有机质,粘粒,有机-粘粒复合,棕壤,塿土,黄棕壤,黄褐土 |
| DOI： |
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| Contribution of Organic Matter and Clay Complex to Cation Exchange Capacity in Soils |
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Xu Minggang An Zhanshi Zhang Jianxin
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| Abstract: |
| Results analysed by using multiple regression equation. Y(CEC) = b0+b1x1 (clay%) +b2x2 (organic matter%) +b3x1x2 of CEC, organic matter and clay of 344 soil samples of brown earth,yellow brown earth, yellow drab-earth and lou soil indicated that when the content ratio of clay to organic matter Was 3-16 (average 8 or so, close to the CEC rate of organic matter to clay) , the organic-clay complex affected soil CEC significantly. This also revealed the complex depleted an amount of total exchange-site of clay and organic matter by 41.8%} 26.7%} 31.9% and!9.8% in four types of soils. |
| Key words: Cation Exchange Capacity (CEC), organic matter, clay, organic clay complex, brown earth, Lou soil, yellow brown earth,yellow drab earth |
