Micromorphological features of Paleo-Stagnic-Anthrosols at archaeological site of Sanxingdui,China |
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| Authors: | Yurong He Chengmin Huang Xiangming Xu Yanqiang Wang Xiubin He |
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| Institution: | (1) Institute of Mountain Hazards & Environment, Chinese Academy of Sciences, Chengdu, 610041, China;(2) Department of Environmental Science and Engineering, Sichuan University, Chengdu, 610065, China |
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| Abstract: | The archaeological site of the Sanxingdui may date back as far as 5,000 years ago. The typical profiles of Palaeo-Stagnic-Anthrosols near the ancient site were selected, which aimed to identify diagnostic horizons employing methodology of soil taxonomic classification and to reveal the micromorphological properties of the paleosols. Under long-term anthropogenic mellowing, the discernible differentiation between anthrostagnic epipedon and its subhorizons as well as hydragric horizon and its subhorizons occurred in Paleo-Stagnic-Anthrosols at the archaeological site of the Sanxingdui. The micromorphological properties diversified among each specific diagnostic subhorizon, e.g., the developed microstructure in cultivated subhorizon within anthrostagnic epipedon, closely arranged particles and considerable micropores beneficial to both of water conservation and filtration in plow subhorizon within anthrostagnic epipedon, and automorphic optical-orientation clays and calcareous corrosion in hydragric horizons. The findings above of micromorphological features related with diagnostic horizons are significant for soil taxonomic classification. |
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| Keywords: | Paleo-Stagnic-Anthrosols diagnostic horizon soil micromorphology soil taxonomic |
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