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.

该提供大量热带壤的剖面图，如：秘鲁的成、肯尼亚的变性、尼日利亚的淋溶、的软、巴西的灰、红岩层等。