climatic formation of soil [土壤] 气候成土作用
biological formation of soil [土壤] 生物成土作用
formation of primordial soil 原始成土过程
Bog type of soil formation 沼土生成作用
factor of soil formation [土壤] 成土因素
laterite type of soil formation 砖红壤成土作用
podzol type of soil formation 灰壤式成土作用
steppe type of soil formation 草原成土作用 ; 草原土型成土作用
Soil organic matters are an important factor affecting the formation of soil structure.
土壤有机质是形成土壤结构的重要因素。
Therefore. the combination of these two factors is the main condition for the formation of soil coagulation water.
从而明确了这两个主要因素的结合是凝结水形成的基本条件。
The seepage erosion and disintegration produced by the activity of ground water will result in formation of soil cave.
岩溶区地下水或地表水的活动，将对土层产生潜蚀作用及崩解作用，进而形成土洞。
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