成土作用 [土壤] Pedogenesis ; soil-forming processes ; pedogenic process ; Soil forming process
土壤团粒形成作用 soil granulation
非气候性成土作用 Aclimatic soil formation
沼土生成作用 Bog type of soil formation
气候性成土作用 Climatic soil formation
气候成土作用 [土壤] climatic formation of soil
灰壤式成土作用 podzol type of soil formation
草原成土作用 steppe type of soil formation
粘土岩成岩作用 claystone diagenesis
生物成土作用 [土壤] biological formation of soil
性早熟也称为成土作用或幼体生殖。
根据自然成土因素和在人为作用影响下的土壤熟化程度，将该小流域的黄绵土进一步划分为四种土壤类型。
According to the natural factors of soil formation and the development, degree of soil, under the influence of human production activity, the Huangmian soils were devided into four types.
采用积分变换和传递矩阵方法，求解了成层土在内部环形荷载作用下的基本解；
The fundamental solutions for displacements and stress components of the layered soil due to unit internal ring loading are first derived with integral transforms and the transfer matrix method.
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