Taxonomic classification of the typical soils on Bashang Plateau of Chengde
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    Abstract:

    Soil classification in China is still at its developing stage where the soil genetic classification system remains to be in dominance, while the Soil Taxonomy Systerm is developing rapidly in China. In order to know how the typical soils on the Bashang Plateau in Chengde are classified in the Soil Taxonomy System, 8 typical soil profiles were collected in genetic soil regions, such as chestnut soil, grey forest soil, black soil, et al, and their soil forming environments were investigated, and then soil samples were taken from various soil layers of the soil profiles for analysis of physical and chemical properties. Results showed that (1) the diagnostic surface horizons of 8 soil profiles are Histic epipedon, Mollic epipedon and Ochric epipedon; the diagnostic subsurfaces are Calcic horizon and Cambic horizon; the diagnostic characteristics are Ustic soil moisture regime, Udic soil moisture regime, Stagnic soil moisture regime, Aquic soil moisture regime, Frigid soil temperature regime, Fibric soil materials, Hemic soil materials, Gleyic features, Redox features and Base saturation. (2) Based on the “Key to the Chinese Soil Taxonomy (Third edition)”, the 8 soil profiles could be sorted into three Orders (Isohumosols, Histosols and Primosols), four Suborders, five Groups, and six Subgroups. However, based on the Genetic Soil Classification System, they fell into 5Orders,6Suborders,7Groups and 8Subgroups. (3) The differentiations of the classification of the 8 profiles between the two classification systems varied significantly with classification level, and the relationships between the various classification levels of CSGC and CST are complicated ones rather than the simple one-to-one type.

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An Hongyan, Long Huaiyu, Liu Ying, Mu Zhen, Lei Qiuliang, Gao Lin, Li Jun. Taxonomic classification of the typical soils on Bashang Plateau of Chengde[J]. Acta Pedologica Sinica,2013,50(3):448-458.

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History
  • Received:February 15,2012
  • Revised:December 19,2012
  • Adopted:December 28,2012
  • Online: March 04,2013
  • Published: