| environ. |
soil formation The combination of natural processes by which soils are formed. It is also known as pedogenesis. The most important soil-forming factors are parent material, terrain, climate, aspect, vegetation cover, microorganisms in the soil and the age of the land surface. Some pedologists would add to this list the influence of human activities. All the factors exhibit varying degrees of interrelationship and some are more important than others, with climate often being singled out as the most important (土壤自然形成过程的结合。它也被称为成土。最重要的土壤形成因素是母质、地形、气候、坡向、植被和土壤中的微生物以及地表的年龄。有些行为也加入到这些人类活动的影响列表中。所有的因素表现出不同程度的相关性，且有些因素比其它因素更重要，气候通常被认为是最重要的。) |
