Three groups of micro-aggregate, including water dispersed (G0,sodium dispersed (G1) and mechanical-sodium dispersed micro-aggregate (G2),were separated by the peptization method from three groups of paddy soil derived from Quarternary red clay. The total amounts of micro-aggregates are 54, 58, 60% based on air-dry soil and the ratio of G0+G1:G2 are 0.45, 0.94, 1.46 respectively.
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何羣,陈家坊.第四纪红土发育的水稻土微团聚体特性的初步研究[J].土壤学报,1964,12(1):55-62. Q. HO, C. F. CHEN. ON THE PROPERTIES OF THE MICRO-AGGREGATES OF PADDY SOILS DERIVED FROM QUARTERNARY RED CLAY[J]. Acta Pedologica Sinica,1964,12(1):55-62.