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紫色水稻土的原土复合量（重组腐殖质）为中性土＞钙质土＞酸性土，同一土壤剖面中其含量是随土层深度下降；而有机无机复合度为钙质土＞中性、酸性土，在土壤剖面中是随土层深度增加。＜０．０１ｍｍ土粒团聚量和＜０．０１ｍｍ土粒团聚度为钙质土＞中性土＞酸性土。原土复合量和有机质含量，物理性粘粒含量、铁氧化物含量与＜０．０１ｍｍ土粒团聚量呈显著正相关；而有机无机复合度与有机质含量呈显著负相关，与腐殖质结合状态，物理性粘粒含量和＜０．０１ｍｍ土粒团聚度间无显著相关性。土壤有机质在上粒团聚中，是与矿物质呈复合状态的腐殖质（原土复合量）起作用，而原上复合量的多少很大程度上决定了＜０．０１ｍｍ土粒团聚量。有机无机复合和土粒团聚的关系是通过原土复合量和＜０．０１ｍｍ土粒团聚量间的关系来体现的。
The content of original soil composite (reorganized humus) of purple paddy soil is neutral soil> calcareous soil> acidic soil, and its content in the same soil profile decreases with the depth of soil layer; while the organic-inorganic complex degree is calcareous soil> neutral, Acid soil, with soil depth increases in the soil profile. <0.01mm soil agglomeration and <0.01mm soil agglomeration of calcareous soil> neutral soil> acidic soil. There was a significant positive correlation between compound content of soil and organic matter, physical clay content, iron oxide content and <0.01mm soil particle agglomeration, while organic-inorganic compound content was negatively correlated with organic matter content, There was no significant correlation between physical clay content and <0.01mm soil particle agglomeration. Soil organic matter in the particle agglomeration, is the compound with the state of minerals humic substances (original soil compound amount) play a role, and the original compound amount to a large extent determines the <0.01mm soil particle agglomeration. The relationship between organic-inorganic composite and soil particle agglomeration is reflected by the relationship between the original soil compounded amount and <0.01mm soil particle agglomeration.