The phosphate adsorption-desorption characteristics of two red soils and two paddy soils, derived from the same Quaternary red clay, were studied.
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。
Quaternary red clay total nitrogen content was highest, but the available nitrogen content was lower than Granite soil and Purple sandy shale soil.
第四纪红土土壤全氮含量较高，但是其碱解氮含量比花岗岩母质土壤和紫色砂页岩土壤低。
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.
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。
The characteristic and the formation process of moraine hill in the Dalian area along the coast are analyzed from the phenomenon of the Quaternary incompact layer covering the Dalian red clay.
从大连红黏土被第四系松散层所覆盖的现象出发，分析了大连地区沿海岸附近冰碛残丘的特征与形成过程。
The distribution patterns of rare earth elements and trace elements indicate the similarity of eolian origin between the red clay and Quaternary loess and paleosols.
稀土元素以及微量元素分布形式揭示出红粘土与第四纪黄土-古土壤风成成因的相似性。
We also discover the Lower Quaternary limit locates in M/G boundary or the interface between the grey-green clay-silty sand layer and brown-red silty clay sand layer.
研究表明第四纪下界存在于该剖面的灰绿色粘土粉砂质砂层与红褐色粉砂粘土质砂层之间（即M／G面上）。
We also discover the Lower Quaternary limit locates in M/G boundary or the interface between the grey-green clay-silty sand layer and brown-red silty clay sand layer.
研究表明第四纪下界存在于该剖面的灰绿色粘土粉砂质砂层与红褐色粉砂粘土质砂层之间（即M／G面上）。
应用推荐