Chapter 1 - Concepts of Soils and Pedology*

摘要: Concepts, including those about soils, can be thought of as explanations relationships among observable phenomena the real world. They serve to simplify and unify myriad fragmented bits information objects or segments universe interest. The methods measuring sizes distances vary depending on whether one deal with subatomic components at end scale cellestial other end. facts are obtained by used—for example, there many soil pH conditions measurement. Sets commonly used characterize Relationships measured provide a basis for classification. ideas concepts that permit human mind perceive order causal relations are, therefore, arbitrarily defining naming parts world developing classifications assist in consolidating such into abstract models complex