1983年1月1日 · A well-developed Spodosol profile is a striking example of soil genesis as the horizons are sharply differentiated. The Spodosol order is defined essentially as those mineral soils having a spodic or placic horizon. A placic horizon is a thin, black to dark-reddish pan cemented by iron, by iron and manganese, or by an iron–organic matter complex.
This site offers images from the tropics e. g. pictures of soil profiles: aridisol in Peru, vertisol in Kenya, alfisol in Nigeria, mollisol in Thailand, spodosol in Brazil, laterite outcrops etc.该站点提供大量热带土壤的剖面图,如:秘鲁的旱成土、肯尼亚的变性土、尼日利亚的淋溶土、泰国的软土、 …
Conifer forests commonly thrive in less fertile soils relative to soils found beneath deciduous forests. In addition to Inceptisols and Entisols, the Spodosol soil order (or Podzols) is common in coniferous forests of cool temperate or wetter regions.