The development of soil is decided by many environmental factors, such as climate, lithology, landforms and human activities, etc. The complex of these environmental factors leads to the spatial heterogeneity of soil physic-chemical properties and their interrelations. However, the knowledge of interrelations between soil properties on regional scale is still limited. In this study, the topsoil samples were collected from Zhangjiakou city, and six parameters of soil properties respectively are median grain size, bulk density, field water capacity (FW), saturated hydraulic conductivity (Ks), so...
