A soil riches in both organic carbon and inorganic carbon in the Qilian Mountains. (IMAGE)

Chinese Academy of Sciences Headquarters

A soil riches in both organic carbon and inorganic carbon in the Qilian Mountains.

Caption

The upper solum (mollic epipedon) shows a dark color because of the heavy accumulation of organic matter, while the lower solum (calcic horizon) is whitish due to the presence of calcium carbonate. The soil type is Calcic Molli-Ustic Cambosols according to Chinese Soil Taxonomy.

Credit

ZHANG Ganlin

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