对几个第四纪红色粘土剖面的网纹层进行了微形态研究。
The micromorphological charateristics of variegated horizon in profiles of Quaternaryred clay were studied and reported in this paper.
本文研究了一组发育于第四纪红色粘土母质上的红壤和红壤性水稻土对磷的吸附和解吸特征。
The phosphate adsorption-desorption characteristics of two red soils and two paddy soils, derived from the same Quaternary red clay, were studied.
不同母质发育的土壤相比，以石灰岩风化物发育的水稻土肥力水平较河流沉积物和第四纪红色粘土发育的水稻土高。
Among them the paddy soil developed from the weathering product of limestone has much higher nutrient contents than the paddy soils developed from river alluvium and Quaternary Red Clay does.
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