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[1]LIU Gang,XU Wen-nian,CAI Chong-fa,et al.Construction of Heilu Soil Chronofunction in the Holocene in Luochuan, Shaanxi Province[J].Research of Soil and Water Conservation,2012,19(03):24-29.

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Construction of Heilu Soil Chronofunction in the Holocene in Luochuan, Shaanxi Province

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 19 Number of periods: 2012 03 Page number: 24-29 Column: Public date: 2012-06-20

Title:: Construction of Heilu Soil Chronofunction in the Holocene in Luochuan, Shaanxi Province

Author(s):: LIU Gang^1,2,3, XU Wen-nian¹, CAI Chong-fa³, LIU Pu-ling², YANG Ming-yi², ZHANG Qiong³; 1. Key Laboratory of Geological Hazards on Three Gorges Reservoir Area, Ministry of Education, Three Gorges University, Yichang, Hubei 443002, China;
2. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China;

Keywords:: ¹⁴C age; function; soil properties; element migration; soil development

CLC:: P534.63⁺2

DOI:: -

Abstract:: Soil chronofunction is an important way to understand soil developent processes quantificationally, and the foundation for establishment of soil genesis model. To establish soil chronofunction, soil properties and ¹⁴C ages in the Holocene of Heilu soil profile in Luochuan, Shaanxi Province, were studied. Linear, logarithmic, and three order polynomial functions were used to fit the relationships between soil properties and soil ages. The results indicated that three order polynomial function was the best to fit the relationships between clay (<0.002 mm), silt (0.002～0.02 mm), sand (0.02～2 mm) and soil ages, and the trend line showed the existence of Heilu soil in the profile. The logarithmic function indicated the variation of soil organic carbon and pH with time perferably. The variation of CaCO₃ content, Mn/Zr, Fe/Zr, K/Zr, Mg/Zr, Ca/Zr, P/Zr, and Na/Zr with soil ages could be described best by use of three order polynomial functions, and the trend line showed the migration of CaCO₃ and soil elements.

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